Seamless -Steel Boiler, Superheater, and Heat-Exchanger Tubes ASTM A213 Archives

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Seamless -Steel Boiler, Superheater, and Heat-Exchanger Tubes ASTM A213

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Designation: A213/A213M

Standard Specification for
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
This standard is issued under the fixed designation A 213/A 213M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.

Scrope

This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc.
Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements.
The tubing sizes and thicknesses usually furnished to this specification are 1⁄8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order

Materials and Manufacture

Manufacture and Condition—Tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished.
Heat Treatment: Ferritic Alloy and Ferritic Stainless Steels—The ferritic alloy and ferritic stainless steels shall be reheated for heat treatment in accordance with the requirements of Table 3. Heat treatment shall be carried out separately and in addition to heating for hot forming.
Austenitic Stainless Steels—All austenitic tubes shall be furnished in the heat-treated condition, and shall be heat treated in accordance with the requirements. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution treatment temperature specified in Table 3, tubes may be individually
quenched in water or rapidly cooled by other means (direct quenched).
If any controlled structural characteristics are required, these shall be so specified in the order as to be a guide as to the most suitable heat treatment.

Chemical Composition Limits, %A, for Low Alloy Steel

Grade

UNS designation

Carbon

Manga- nese

Phospho- rus

Sul- fur

Silicon

Nickel

Chromium

Molybdenum

Vana- dium

Boron

Niobium

Nitrogen

Aluminum

Tungsten

Other Elements

K11547

0.10–0.20

0.30–0.61

0.03

0.025^B

0.10–0.30

…

0.50–0.81

0.44–0.65

…

K41545

0.15

0.30–0.60

0.03

0.50

…

4.00–6.00

0.45–0.65

…

T5b

K51545

0.15

0.30–0.60

0.03

1.00–2.00

…

4.00–6.00

0.45–0.65

…

T5c

K41245

0.12

0.30–0.60

0.03

0.50

…

4.00–6.00

0.45–0.65

…

Ti
4xC–0.70

K90941

0.15

0.30–0.60

0.03

0.25–1.00

…

8.00–10.00

0.90–1.10

…

T11

K11597

0.05-0.15

0.30–0.60

0.03

0.50–1.00

…

1.00–1.50

0.44–0.65

…

T12

K11562

0.05-0.15

0.30–0.61

0.03

0.025^B

0.50

…

0.80–1.25

0.44–0.65

…

T17

K12047

0.15-0.25

0.30–0.61

0.03

0.15–0.35

…

0.80–1.25

…

0.15

…

T21

K31545

0.05-0.15

0.30–0.60

0.03

0.50–1.00

…

2.65–3.35

0.80–1.06

…

T22

K21590

0.05-0.15

0.30–0.60

0.03

0.50

…

1.90–2.60

0.87–1.13

…

T23

K40712

0.04-0.10

0.10–0.60

0.03

0.01

0.50

…

1.90–2.60

0.05–0.30

0.20–0.30

0.0005–0.006

0.02–0.08

0.03

1.45–1.75

…

T24

K30736

0.05-0.10

0.30–0.70

0.02

0.01

0.15–0.45

…

2.20–2.60

0.90–1.10

0.20–0.30

0.0015–0.007

…

0.01

0.02

…

Ti
0.06–0.10

T36

K21001

0.10-0.17

0.80–1.20

0.03

0.25–0.50

1.00–1.30

0.30

0.25–0.50

0.02

…

0.015–0.045

0.02

0.05

…

Cu
0.50–0.80

T91

K90901

0.07-0.14

0.30–0.60

0.02

0.01

0.20–0.50

0.40

8.0–9.5

0.85–1.05

0.18–0.25

…

0.06–0.10

0.030–0.070

0.02

…

Ti 0.01
Zr 0.01

T92

K92460

0.07-0.13

0.30–0.60

0.02

0.01

0.50

0.40

8.5–9.5

0.30–0.60

0.15–0.25

0.001–0.006

0.04–0.09

0.030–0.070

0.02

1.5–2.00

Ti 0.01
Zr 0.01

T122

K91271

0.07-0.14

0.70

0.02

0.01

0.50

10.0–11.5

0.25–0.60

0.15–0.30

0.0005–0.005

0.04–0.10

0.040–0.100

0.02

1.50–2.50

Cu 0.30–1.70
Ti 0.01
Zr 0.01

T911

K91061

0.09-0.13

0.30–0.60

0.02

0.01

0.10–0.50

0.40

8.5–9.5

0.90–1.10

0.18–0.25

0.0003–0.006

0.06–0.10

0.040–0.090

0.02

0.90–1.10

Ti 0.01
Zr 0.01

^A Maximum, unless range or minimum is indicated. Where ellipses (…) appear in this table, there is no requirement, and analysis for the element need not be determined or reported.
^B It is permissible to order T2 and T12 with a sulfur content of 0.045 max.

Chemical Composition Limits, %^A, for Austenitic and Ferritic Stainless Steel

Grade

UNS designation

Composition

Carbon

Manganese

Phosphorus

Sulfur

Silicon

Chromium

Nickel

Molybdenum

Nitrogen^B

Niobium

Titanium

Other elements

TP201

S20100

0.15

5.5-7.5

0.06

0.03

1.00

16.0-18.0

3.5-5.5

…

0.25

…

TP202

S20200

0.15

7.5-10.0

0.06

0.03

1.00

17.0-19.0

4.0-6.0

…

0.25

…

XM-19

S20910

0.06

4.0-6.0

0.045

0.03

1.00

20.5-23.5

11.5-13.5

1.50-3.00

0.20-0.40

0.10-0.30

…

V 0.1-0.30

S21500

0.06-0.15

5.5-7.0

0.045

0.03

0.2-1.0

14.0-16.0

9.0-11.0

0.80-1.20

…

0.75-1.25

…

B 0.003-0.009

S25700

0.02

2.00

0.025

0.01

6.5-8.0

8.0-11.5

22.0-25.0

0.5

…

V 0.15-0.40

TP304

S30400

0.08

2.00

0.045

0.03

1.00

18.0-20.0

8.0-11.0

…

TP304L

S30403

0.035^D

2.00

0.045

0.03

1.00

18.0-20.0

8.0-12.0

…

TP304H

S30409

0.04-0.10

2.00

0.045

0.03

1.00

18.0-20.0

8.0-11.0

…

S30432

0.07-0.13

1.00

0.04

0.01

0.30

17.0-19.0

7.5-10.5

…

0.05-0.12

0.3-0.60

…

Al 0.003-0.03 B 0.001-0.01 Cu 2.5-3.5

S30434

0.07-0.14

2.00

0.04

0.01

1.00

17.5-19.5

9.0-12.0

…

0.10-0.40^E

0.10-0.25^E

B 0.001-0.004 Cu 2.5-3.5

TP304N

S30451

0.08

2.00

0.045

0.03

1.00

18.0-20.0

8.0-11.0

…

0.10-0.16

…

TP304LN

S30453

0.035^D

2.00

0.045

0.03

1.00

18.0-20.0

8.0-11.0

…

0.10-0.16

…

S30615

0.016-0.24

2.00

0.03

3.2-4.0

17.0-19.5

13.5-16.0

…

Al0.8-1.5 Ce 0.03-0.08

S30815

0.05-0.10

0.80

0.04

0.03

1.4-2.0

20.0-22.0

10.0-12.0

…

0.14-0.20

…

TP309S

S30908

0.08

2.00

0.045

0.03

1.00

22.0-24.0

12.0-15.0

…

TP309H

S30909

0.04-0.10

2.00

0.045

0.03

1.00

22.0-24.0

12.0-15.0

…

TP309Cb

S30940

0.08

2.00

0.045

0.03

1.00

22.0-24.0

12.0-16.0

…

10xC-1.10

…

TP309HCb

S30941

0.04-0.10

2.00

0.045

0.03

1.00

22.0-24.0

12.0-16.0

…

10xC-1.10

…

B 0.001-0.005

^…

S30942

0.03-0.10

2.00

0.04

0.03

1.00

21.0-23.0

14.5-16.5

…

0.1-0.2

0.50-0.80

…

S31002

0.02

2.00

0.02

0.015

0.15

24.0-26.0

19.0-22.0

0.1

…

TP310S

S31008

0.08

2.00

0.045

0.03

1.00

24.0-26.0

19.0-22.0

…

TP310H

S31009

0.04-0.10

2.00

0.045

0.03

1.00

24.0-26.0

19.0-22.0

…

TP310Cb

S31040

0.08

2.00

0.045

0.03

1.00

24.0-26.0

19.0-22.0

…

10xC-1.10

…

TP310HCb

S31041

0.04-0.10

2.00

0.045

0.03

1.00

24.0-26.0

19.0-22.0

…

10xC-1.10

…

TP310HCbN

S31042

0.04-0.10

2.00

0.045

0.03

1.00

24.0-26.0

19.0-22.0

…

0.15-0.35

0.20-0.60

…

TP310MoLN

S31050

0.025

2.00

0.02

0.03

0.40

24.0-26.0

21.0-23.0

2.00-3.00

0.1-0.16

…

S31060

0.05-0.10

1.00

0.04

0.03

0.50

22.0-24.0

10.0-12.5

…

0.18-0.25

…

Ce+La 0.025-0.07 B 0.001-0.01

S31254

0.02

1.00

0.03

0.01

0.80

19.5-20.5

17.5-18.5

6.0-6.5

0.18-0.22

…

Cu 0.5-1.00

S31272

0.08-0.12

1.5-2.0

0.03

0.015

0.3-0.7

14.0-16.0

1.0-1.4

…

0.30-0.60

B 0.004-0.008

S31277

0.02

3.00

0.03

0.01

0.50

20.5-23.0

26.0-28.0

6.5-8.0

0.30-0.40

…

Cu 0.5-1.50

TP316

S31600

0.08

2.00

0.045

0.03

1.00

16.0-18.0

10.0-14.0

2.0-3.0

…

TP316L

S31603

0.035^D

2.00

0.045

0.03

1.00

16.0-18.0

10.0-14.0

2.0-3.0

…

TP316H

S31609

0.04-0.10

2.00

0.045

0.03

1.00

16.0-18.0

11.0-14.0

2.0-3.0

…

TP316Ti

S31635

0.08

2.00

0.045

0.03

0.75

16.0-18.0

10.0-14.0

2.0-3.0

0.1

…

5x(C+N)-0.70

…

TP316N

S31651

0.08

2.00

0.045

0.03

1.00

16.0-18.0

10.0-13.0

2.0-3.0

0.1-0.16

…

TP316LN

S31653

0.035^D

2.00

0.045

0.03

1.00

16.0-18.0

10.0-13.0

2.0-3.0

0.1-0.16

…

TP317

S31700

0.08

2.00

0.045

0.03

1.00

18.0-20.0

11.0-15.0

3.0-4.0

…

TP317L

S31703

0.035

2.00

0.045

0.03

1.00

18.0-20.0

11.0-15.0

3.0-4.0

…

TP317LN

S31725

0.03

2.00

0.045

0.03

1.00

18.0-20.0

13.5-17.5

4.0-5.0

0.2

…

Cu 0.75

TP317LMN

S31726

0.03

2.00

0.045

0.03

1.00

17.0-20.0

13.5-17.5

4.0-5.0

0.10-0.20

…

Cu 0.75

S32050

0.03

1.50

0.035

0.02

1.00

22.0-24.0

20.0-23.0

6.0-6.8

0.21-0.32

…

Cu 0.40

TP321

S32100

0.08

2.00

0.045

0.03

1.00

17.0-19.0

9.0-12.0

…

5(C+N)-0.70

…

TP321H

S32109

0.04-0.1

2.00

0.045

0.03

1.00

17.0-19.0

9.0-12.0

…

4(C+N)-0.70

…

S32615

0.07

2.00

0.045

0.03

4.8-6.0

16.5-19.5

19.0-22.0

0.30-1.50

…

Cu 1.5-2.50

S33228

0.04-0.08

1.00

0.02

0.015

0.30

26.0-28.0

31.0-33.0

…

0.60-1.00

…

Ce 0.05-0.10 Al 0.025

S34565

0.03

5.0-7.0

0.03

0.01

1.00

23.0-25.0

16.0-18.0

4.0-5.0

0.40-0.60

0.1

…

TP347

S34700

0.08

2.00

0.045

0.03

1.00

17.0-20.0

9.0-13.0

…

10xC-1.10

…

TP347H

S34709

0.04-0.10

2.00

0.045

0.03

1.00

17.0-19.0

9.0-13.0

…

8xC-1.10

…

TP347HFG

S34710

0.06-0.10

2.00

0.045

0.03

1.00

17.0-19.0

9.0-13.0

…

8xC-1.10

…

TP347LN

S34751

0.005-0.02

2.00

0.045

0.03

1.00

17.0-19.0

9.0-12.0

…

0.06-0.10

0.20-0.50^F

…

TP348

S34800

0.08

2.00

0.045

0.03

1.00

17.0-19.0

9.0-13.0

…

Co 0.20, Ta 0.10

TP348H

S34809

0.04-0.1

2.00

0.045

0.03

1.00

17.0-19.0

9.0-13.0

…

Co 0.20, Ta 0.10

…

S35045

0.06-0.1

1.50

0.045

0.015

1.00

25.0-29.0

32.0-37.0

…

0.15-0.60

Al 0.15-0.60 Cu 0.75

XM-15

S38100

0.08

2.00

0.03

1.5-2.5

17.0-19.0

17.5-18.5

…

S38815

0.03

2.00

0.04

0.02

5.5-6.5

13.0-15.0

15.0-17.0

0.75-1.5

…

Cu 0.75-1.50 Al 0.30

TP444

S44400

0.03

1.00

0.04

0.03

1.00

17.5-19.5

1.75-2.5

0.035

…

^AMaximum, unless a range or minimum is indicated. Where ellipses (…) appear in this table, there is no minimum and analysis for the element need not be determined or reported
^BThe method of analysis for Nitrogen shall be a matter of agreement between the purchaser and the producer.
^CFor these alloys, there is no common grade designation. The UNS number uniquely identifies these alloys.
^DFor small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040% is necessary in Grades TP304L, TP304LN, TP316L, and TP316LN.
^EGrade S30434 shall have (Ti + 1⁄2 Nb) of not less than 2 times and not more than 4 times the carbon content.
^FGrade TP347LN shall have an Nb content of not less than 15 times the carbon content.
^GGrade TP348 shall have an Nb + Ta content of not less than 10 times the carbon content and not more than 1.10%.
^HGrade TP348H shall have an Nb + Ta content of not less than 8 times the carbon content and not more than 1.10%.
^IGrade TP444 shall have Ni + Cu = 1.00 max.
^JGrade TP444 shall have Ti + Nb = 0.20 + 4(C + N)–0.80

Composition Requirements: The alloy steels shall conform to the chemical requirements given.
The stainless steels shall conform to the chemical requirements given.
Product Analysis: An analysis of either one billet or one tube shall be made from each heat. The chemical composition thus determined shall conform to the requirements specified.
If the original test for product analysis fails, retests of two additional billets or tubes shall be made. Both retests, for the elements in question, shall meet the requirements of the specification; otherwise all remaining material in the heat shall be rejected or, at the option of the producer, each billet or tube may be individually tested for acceptance. Billets or tubes that do not meet the requirements of the specification shall be rejected

Mechanical Properties

Tensile Requirements: The material shall conform to the requirements as to tensile properties given. Values for each 1⁄32-in. [0.8-mm] decrease in wall thickness.
Where the wall thickness lies between two values shown, the minimum elongation value shall be determined by the following equations. For Grades T23, T24, T91, T92, T122, T911, and S44400: E = 32t + 10.00 [E = 1.25t + 10.00]. For Grade T36: E = 32t + 5.0 [E = 1.25t + 5.0]. For all other ferritic alloy grades: E = 48t + 15.00 [ E = 1.87t + 15.00].
where:
E = elongation in 2 in. [50 mm], %, and
t = actual thickness of specimen, in. [mm].
One tension test shall be made on a specimen from one tube for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
Hardness Requirements: The material shall conform to the hardness requirements given. Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot. Flattening Test—One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Test—One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
Mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] in inside diameter or thinner than 0.015 in. [0.4 mm] in thickness.

Hydrostatic or Nondestructive Electric Test

Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

Forming Operations

Tubes, when inserted in a boiler or tube sheet, shall stand expanding and beading without showing cracks or flaws. Superheater tubes when properly manipulated shall stand all forging, welding, and bending operations necessary for application without developing defects.
Certain of the ferritic steels covered by this specification will harden if cooled rapidly from above their critical temperature. Some will air harden, that is, become hardened to an undesirable degree when cooled in air from high temperatures, particularly chromium-containing steels with chromium of 4 % and higher. Therefore, operations that involve
heating such steels above their critical temperatures, such as welding, flanging, and hot bending, should be followed by suitable heat treatment.

Permissible Variations from the Specified Wall Thickness

Permissible variations from the specified minimum wall thickness shall be in accordance with Specification A 1016/A 1016M.
Permissible variations from the specified average wall thickness are 6 10 % of the specified average wall thickness.

Surface Condition

Ferritic alloy cold-finished steel tubes shall be free of scale and suitable for inspection. A slight amount of oxidation is not considered scale. Ferritic alloy hot-finished steel tubes shall be free of loose scale and suitable for inspection.
Stainless steel tubes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Any special finish requirement shall be subject to agreement between the supplier and the purchaser.

Heat Treatment and Grain Size Requirements^A

Grade

UNS
Number

Heat Treat Type

Austenitizing/Solutioning
Temperature, min or range °F [°C]

Cooling Media

Subcritical Annealing or Tempering
Temperature, min or range °F [°C]

ASTM
Grain Size No.

Ferritic Alloy Steels

K11547

full or isothermal anneal

…

normalize and temper

…

subcritical anneal

…

1200 to 1350

…

[650 to 730]

…

K41545

full or isothermal anneal

…

normalize and temper

…

1250 [675]

…

T5b

K51545

full or isothermal anneal

…

normalize and temper

…

1250 [675]

…

T5c

K41245

subcritical anneal

…

air or furnace

1350 [730]^C

…

S50400

full or isothermal anneal

…

normalize and temper

…

1250 [675]

…

T11

K11597

full or isothermal anneal

…

normalize and temper

…

1200 [650]

…

T12

K11562

full or isothermal anneal

…

normalize and temper

…

subcritical anneal

…

1200 to 1350

…

[650 to 730]

…

T17

K12047

full or isothermal anneal

…

normalize and temper

…

1200 [650]

…

T21

K31545

full or isothermal anneal

…

normalize and temper

…

1250 [675]

…

T22

K21590

full or isothermal anneal

…

normalize and temper

…

1250 [675]

…

T23

K40712

normalize and temper

1900–1975

…

1350–1470 [730–800]

…

[1040–1080]

…

T24

K30736

normalize and tempher

1800–1975

…

1350–1470 [730–800]

…

T36

K21001

normalize and temper

[980–1080]
1650 [900]

1100 [595]

…

T91

K90901

normalize and temper

1900–1975

…

1350–1470 [730–800]

…

[1040–1080]

…

T92

K92460

normalize and temper

1900–1975

…

1350–1470 [730–800]

…

[1040–1080]

…

T122

K91261

normalize and temper

1900–1975

…

1350–1470 [730–800]

…

[1040–1080]

…

T911

K91061

normalize and temper

1900–1975

1365–1435

…

[1040–1080]

[740–780]

…

Austenitic Stainless Steels

TP201

S20100

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP202

S20200

solution treatment

1900 [1040]^F

water or other rapid cool

…

XM-19

S20910

solution treatment

1900 [1040]^F

water or other rapid cool

…

S21500

solution treatment

1900 [1040]^F^,^G

water or other rapid cool

…

S25700

solution treatment

1900 [1040]^F

water or other rapid cool

…

S30400

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP304

S30403

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP304L

S30409

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP304H

S30432

solution treatment

1900 [1040]

water or other rapid cool

…

S30434

solution treatment

2000 [1100]^F

water or other rapid cool

…

S30451

solution treatment

2120 [1160]

water or other rapid cool

…

TP304N

S30453

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP304LN

S30615

solution treatment

1900 [1040]^F

water or other rapid cool

…

S30815

solution treatment

1900 [1040]^F

water or other rapid cool

…

S30908

solution treatment

1920 [1050]

water or other rapid cool

…

TP309S

S30909

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP309H

S30940

solution treatment

1900 [1040]

water or other rapid cool

…

TP309Cb

S30941

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP309Hcb

S30942

solution treatment

1900 [1040]^H

water or other rapid cool

…

S31002

solution treatment

2120 [1160]

water or other rapid cool

…

S31008

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP310S

S31009

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP310H

S31040

solution treatment

1900 [1040]

water or other rapid cool

…

TP310Cb

S31041

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP310HCb

S31042

solution treatment

1900 [1040]^H

water or other rapid cool

…

TP310HCbN

S31050

solution treatment

1900 [1040]^F^,^H

water or other rapid cool

…

S31060

solution treatment

1975 [1080]– 2160 [1180]^F

water or other rapid cool

…

S31254

solution treatment

2100 [1150]

water or other rapid cool

…

S31272

solution treatment

1920 [1050]

water or other rapid cool

…

S31277

solution treatment

2050 [1120]^F

water or other rapid cool

…

TP316

S31600

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP316L

S31603

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP316H

S31609

solution treatment

1900 [1040]

water or other rapid cool

…

TP316Ti

S31635

solution treatment

1900 [1040]

water or other rapid cool

…

TP316N

S31651

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP316LN

S31653

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP317

S31700

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP317L

S31703

solution treatment

1900 [1040]^F

water or other rapid cool

…

S31725

solution treatment

1900 [1040]^F

water or other rapid cool

…

S32050

solution treatment

2100 [1150]^F

water or other rapid cool

…

TP321

S32100

solution treatment

1900 [1040]^F^,^H

water or other rapid cool

…

TP321H

S32109

solution treatment

cold worked:2000 [1090] hot rolled: 1925 [1050]^H

water or other rapid cool

…

S32615

solution treatment

1900 [1040]^F

water or other rapid cool

…

3 or finer

…

S32716

solution treatment

1900 [1040]^F

water or other rapid cool

…

S33228

solution treatment

2050 [1120]

water or other rapid cool

…

S34565

solution treatment

2050 [1120]–

water or other rapid cool

…

TP347

S34700

solution treatment

1900 [1040]^F^,^H

water or other rapid cool

…

TP347H

S34709

solution treatment

cold worked:2000 [1100] hot rolled: 1925 [1050]^H

water or other rapid cool

…

TP347HFG

S34710

solution treatment

2150 [1175]^F

water or other rapid cool

…

7-10

TP347LN

S34751

solution treatment

1900 [1040]^F

water or other rapid cool

…

TP348

S34800

solution treatment

1900 [1040]^F^,^H

water or other rapid cool

…

TP348H

S34809

solution treatment

cold worked:2000 [1100] hot rolled: 1925 [1050]^H

water or other rapid cool

…

S35045

solution treatment

2000 [1100]^F

still air cool or faster

…

XM-15

S38100

solution treatment

1900 [1040]^F

water or other rapid cool

…

S38815

solution treatment

1950 [1065]^F

water or other rapid cool

…

Ferritic Stainless Steels

TP444

S44400

subcritical anneal

…

1400 [760]

…

^AWhere ellipses (…) appear in this table there is no requirement.
^BASTM Grain Size No. listed, or coarser, unless otherwise indicated.
^CApproximately, to achieve properties.
^DAccelerated air cooling or liquid quenching shall be permitted for Class 2.
^EAccelerated cooling from the normalizing temperature shall be permitted for section thicknesses greater than 3 in. [75 mm].
^FQuenched in water or rapidly cooled by other means, at a rate sufficient to prevent re-precipitation of carbides, as demonstrable by the capability of tubes, heat treated by either separate solution annealing or by direct quenching, passing Practices A 262, Practice E. The manufacturer is not required to run the test unless it is specified on the purchase order (see Supplementary Requirement S4). Note that Practices A 262 requires the test to be performed on sensitized specimens in the low-carbon and stabilized types and on specimens representative of the as-shipped condition for other types. In the case of low-carbon types containing 3 % or more molybdenum, the applicability of the sensitizing treatment prior to testing shall be a matter for negotiation between the seller and the purchaser.
^GA maximum solution treating temperature of 2100 °F [1150 °C] is recommended for UNS S21500.
^HA solution treating temperature above 1950 °F [1065 °C] may impair resistance to intergranular corrosion after subsequent exposure to sensitizing conditions in the indicated grades. When specified by the purchaser, a lower temperature stabilization or resolution anneal shall be used subsequent to the higher-temperature solution anneal prescribed in this table.
^I Solution treatment shall be preceded by a softening heat treatment prior to cold-working. The softening temperature shall be at least 90 °F [50 °C] higher than the
solution heat treatment temperature, which shall be at 2150 °F [1180 °C] minimum.

Tensile and Hardness Requirements

Grade

UNS designation

Tensile strength, min, ksi [Mpa]

Yield Strength, min, ksi [MPa]

Elongation in 2 in.
or 50 mm, min, %A,B

Hardness, Max

Brinell/Vickers

Rockwell

Low Alloy Steels:

T5b

K51545

60[415]

30[205]

179 HBW/190HV

89 HRB

K90941

60[415]

30[205]

179 HBW/190HV

89 HRB

T12

K11562

60[415]

32[220]

163 HBW/170 HV

85 HRB

T23

K40712

74[510]

58[400]

220 HBW/230 HV

97 HRB

T24

K30736

85[585]

60[415]

250 HBW/265 HV

25 HRC

T36 Class 1

K21001

90 [620]

64 [440]

250 HBW/
265 HV

25 HRC

T36 Class 2

K21001

95.5 [660]

66.5 [460]

250 HBW/
265 HV

25 HRC

T91

K90901

85[585]

60[415]

250 HBW/
265 HV

25 HRC

T92

K92460

90[620]

64[440]

250 HBW/
265 HV

25 HRC

T122

K91271

90[620]

58[400]

250 HBW/
265 HV

25 HRC

T911

K91061

90[620]

64[440]

250 HBW/
265 HV

25 HRC

All other low alloy grades

60[415]

30[205]

163 HB/
170 HV

85 HRB

Austenitic Stainless Steels:

TP201

S20100

95[655]

38[260]

219 HBW/
230 HV

95 HRB

TP202

S20200

90[620]

45[310]

219 HBW/
230 HV

95 HRB

XM-19

S20910

100[690]

55[380]

250 HBW/
265 HV

25 HRC

…

S21500

78[540]

33[230]

192 HBW/
200 HV

90 HRB

…

S25700

78[540]

35[240]

217 HBW

95 HRB

TP304

S30400

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP304L

S30403

70[485]

25[170]

192 HBW/
200 HV

90 HRB

TP304H

S30409

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S30432

86[590]

34[235]

219 HBW/
230 HV

95 HRB

…

S30434

73 [500]

30 [205]

192 HBW/
200 HV

90 HRB

TP304N

S30451

80[550]

35[240]

192 HBW/
200 HV

90 HRB

TP304LN

S30453

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S30615

90[620]

40[275]

192 HBW/
200 HV

90 HRB

…

S30815

87[600]

45[310]

217 HBW

95 HRB

TP309S

S30908

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP309H

S30909

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP309Cb

S30940

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP309HCb

S30941

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S30942

86 [590]

34 [235]

219 HBW/
230 HV

95 HRB

…

S31002

73[500]

30[205]

192 HBW/
200 HV

90 HRB

TP310S

S31008

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP310H

S31009

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP310Cb

S31040

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP310HCb

S31041

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP310HCbN

S31042

95[655]

43[295]

256 HBW

100 HRB

TP310MoLN

S31050

T <= 0.25 in. [6 mm]

84[580]

39[270]

217 HBW

95 HRB

t > 0.25 in. [6 mm]

78[540]

37[255]

217 HBW

95 HRB

…

S31060

87[600]

41[280]

217 HBW

95 HRB

…

S31254

T <= 0.187 in. [5 mm]

98[675]

45[310]

220 HBW/
230 HV

96 HRB

T > 0.187 in. [5 mm]

95[655]

45[310]

220 HBW/
230 HV

96 HRB

…

S31272

65[450]

29[200]

217 HBW

95 HRB

…

S31277

112 [770]

52 [360]

241 HBW

100 HRB

TP316

S31600

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP316L

S31603

70[485]

25[170]

192 HBW/
200 HV

90 HRB

TP316H

S31609

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP316Ti

S31635

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP316N

S31651

80[550]

35[240]

192 HBW/
200 HV

90 HRB

TP317

S31700

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP317L

S31703

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S31725

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S32050

98[675]

48[330]

256 HBW

100 HRB

TP321

S32100

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP321H

S32109

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S32615

80[550]

32[220]

192 HBW/
200 HV

90 HRB

…

S32716

80[240]

35[240]

192 HBW/
200 HV

90 HRB

…

S33228

73[500]

27[185]

192 HBW/
200 HV

90 HRB

…

S34565

115[790]

60[415]

241 HBW

100 HRB

TP347

S34700

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP347H

S34709

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP347HFG

S34710

80[550]

30[205]

192 HBW/
200 HV

90 HRB

TP347LN

S34751

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP348

S34800

75[515]

30[205]

192 HBW/
200 HV

90 HRB

TP348H

S34809

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S35045

70[485]

25[170]

192 HBW/
200 HV

90 HRB

XM-15

S38100

75[515]

30[205]

192 HBW/
200 HV

90 HRB

…

S38815

78[540]

37[255]

256 HBW

100 HRB

Ferritic Stainless Steels

TP444

S44400

60[415]

40[275]

217 HBW/ 230 HV

96 HRB

^AWhen standard round 2 in. or 50 mm gage length or smaller proportionally sized specimens with gage length equal to 4D (4 times the diameter) is used, the minimum elongation shall be 22 % for all low alloy grades except T23, T24, T91, T92, T122, and T911; and except for TP444.
^B For longitudinal strip tests, a deduction from the basic minimum elongation values of 1.00 % for TP444, T23, T24, T91, T92, T122, and T911, and of 1.50 % for all other low alloy grades for each 1⁄32-in. [0.8-mm] decrease in wall thickness below 5⁄16 in. [8 mm] shall be made.

Computed Minimum Values^A

Wall Thickness

Elongation in 2 in. or 50 mm, min, %

in.

S44400, T23, T24, T91,
T92, T122, and T911

TZZ

All Other Ferritic Grades

⁵⁄16 [0.312]

⁹⁄32 [0.281]

7.2

¹⁄4 [0.250]

6.4

⁷⁄32 [0.219]

5.6

³⁄16 [0.188]

4.8

⁵⁄32 [0.156]

¹⁄8 [0.125]

3.2

³⁄32 [0.094]

2.4

¹⁄16 [0.062]

1.6

0.062 to 0.035, excl

1.6 to 0.9

0.035 to 0.022, excl

0.9 to 0.6

0.022 to 0.015 incl

0.6 to 0.4

^ACalculated elongation requirements shall be rounded to the nearest whole number

Number of Tubes in a Lot Heat Treated by the Continuous Process or by Direct Quench After Hot Forming

Size of Tube

Size of Lot

2 in. [50.8 mm] and over in outside diameter and 0.200 in. [5.1 mm] and over in wall thickness

not more than 50 tubes

2 in. [50.8 mm] and over in outside diameter and under 0.200 in. [5.1 mm] in wall thickness

not more than 75 tubes

Less than 2 in. [50.8 mm] but over 1 in. [25.4 mm] in outside diameter

not more than 75 tubes

1 in. [25.4 mm] or less in outside diameter

not more than 125 tubes

Stress-Relieved Annealed Tubes

For use in certain corrosives, particularly chlorides where stress corrosion may occur, tubes in Grades TP304L, TP316L, TP321, TP347, and TP348 may be specified in the stress-relieved annealed condition.
When stress-relieved tubes are specified, tubes shall be given a heat treatment at 1500 to 1650 °F [815 to 900 °C] after roll straightening. Cooling from this temperature range may be either in air or by slow cooling. No mechanical straightening is permitted after the stress-relief treatment.
Straightness of the tubes shall be a matter of negotiation between the purchaser and supplier

Stabilizing Heat Treatment

Subsequent to the solution anneal required Grades TP309HCb, TP310HCb, TP310HCbN, TP321, TP321H, TP347, TP347H, TP348, and TP348H shall be given a stabilization heat treatment at a temperature lower than that used for the initial solution annealing heat treatment. The temperature of stabilization heat treatment shall be at a temperature as agreed upon between the purchaser and vendor

Unstraightened Tubes

When the purchaser specifies tubes unstraightened after final heat treatment (such as coils), the minimum yield strength shall be reduced by 5 ksi [35 MPa].
On the certification, and wherever the grade designation for unstraightened tubing appears, it shall be identified with the suffix letter “U” (for example, 304-U, 321-U, etc.).

Intergranular Corrosion Test

When specified, material shall pass intergranular corrosion tests conducted by the manufacturer in accordance with Practices A 262, Practice E.
NOTE S—Practice E requires testing on the sensitized condition for low carbon or stabilized grades, and on the as-shipped condition for other grades.
A stabilization heat treatment in accordance with Supplementary Requirement S2 may be necessary and is permitted in order to meet this requirement for the grades containing titanium or columbium, particularly in their H versions.

Dimension Tube
Tube Sizes – General Purpose Seamless Tube
The following table lists tube sizes commonly manufactured to ASTM A269 or ASTM A511. The tables are based on manufacturer’s information.
Imperial dimensions and weights per metre
OD	Wall thickness, in
	0.020	0.022	0.028	0.035	0.036	0.048	0.064	0.080	0.104	0.125	0.188	0.250	0.375
in	Weight, kg/m (conventional weights)
¹_/8	0.034	0.037	0.044		0.052
³/₁₆		0.059	0.072		0.088	0.109
¹/₄	0.075	0.081	0.101		0.125	0.157	0.193
⁵/₁₆			0.129		0.161	0.206	0.258
³/₈			0.157		0.200	0.254	0.323	0.383		0.507
⁷/₁₆					0.234		0.390
¹/₂			0.214	0.264	0.273	0.352	0.452	0.545		0.760
⁵/₈					0.344	0.449	0.582	0.714		1.01
³/₄					0.417	0.546	0.712	0.869	1.09	1.27	1.71
⁷/₈						0.643	0.841	1.03		1.52
1					0.563	0.741	0.971	1.19	1.51	1.77	2.48	3.04	3.80
1¹/₈						0.838	1.10
1¹/₄						0.944	1.23	1.52
1³/₈					0.781		1.36			2.28
1¹/₂					0.854		1.49	1.84		2.79	4.00	5.07
1⁵/₈							1.62
1³/₄						1.32	1.75			3.29
2							2.01			3.8		7.09
2¹/₄										4.31		8.11
2¹/₂							2.53			4.81		9.12
2³/₄							2.79			5.83
3							3.05					11.1
3¹/₂										7.85		13.2
4												15.2
5												19.4
6												23.5
Dimension Tube
Tube Sizes – General Purpose Seamless Tube
Metric dimensions and weights per metre
OD		Wall thickness, mm
		0.5		1.0		1.5		2.0		2.5		3.0	4.0
MM		Weight, kg/m (conventional weights)
6		0.069		0.126		0.170
8				0.176		0.245
10				0.226		0.321		0.403
12				0.277		0.369		0.503
14						0.462		0.604
15				0.352		0.510		0.654
16						0.547		0.705
18						0.623
20						0.968		0.888				1.28
22						0.774		1.02
25						0.887		1.16		1.43		1.66
28						1.00		1.31
30								1.41				2.04
36								1.66
38												2.64	3.42
40								1.91
42								2.01
50								2.42
Notes
Conventional weights are quoted in both tables above.
For austenitic and duplex steels multiply the quoted weight by 1.014.
For ferritic and martensitic steels multiply the quoted weight by 0.985.
Dimension Tube
Tube Sizes – Heat Exchanger Tube
Chemical and petrochemical pipe and tube
This heading covers a broad spectrum of industries including chemical, petrochemical, offshore, process, power generation, nuclear, mining and mineral/metal processing, pulp and paper.
For a full list of Standard Wire Gauge (SWG ) and Birmingham Wire Gauge (BWG) dimensions please refer to charts on page 8.2 of this databook.
Heat exchanger tube – principal SWG sizes
Outside Diameter						Standard Wire Gauge (SWG)
						22 ( 0.711mm)	20 (0.914mm)	18 (1.218mm)	16 (1.625mm)	14 (2.032mm)	12 (2.641mm	11 (2.946mm	10 (3.251mm)

in				mm		Weight, kg/m (average wall¹)
¹/₄		0.250		6.350		.	0.124	0.157	0.192	–	–	–	–
⁵/₁₆		0.313		7.950		.	0.161	0.205	0.257	–	–	–	–
³/₈		0.375		9.525		.	0.197	0.253	0.321	0.381	–	–	–
¹/₂		0.500		12.700		0.213	0.270	0.350	0.451	0.543	0.665	0.720	–
⁵/₈		0.625		15.875		0.270	0.342	0.447	0.580	0.704	0.875	0.954	–
³/₄		0.750		19.050		.	0.415	0.544	0.709	0.866	1.09	1.19	1.29
⁷/₈		0.875		22.225		0.383	0.488	0.641	0.838	1.03	1.30	1.42	1.55
¹		1.000		25.400		0.440	0.560	0.738	0.967	1.19	1.51	1.66	1.80
1¹/₄		1.250		31.750		0.553	0.706	0.931	1.23	1.51	1.93	2.13	2.32
1¹/₂		1.500		38.100		0.666	0.851	1.13	1.48	1.84	2.35	2.59	2.84
1³/₄		1.750		44.450		0.779	0.996	1.32	1.74	2.16	2.77	3.06	3.35
²		2.000		50.800		0.892	1.14	1.51	2.00	2.48	3.19	3.53	3.87
2¹/₂		2.500		63.500		.	.	1.90	2.52	3.13	4.03	4.47	4.91
³		3.000		76.200		.	.	2.29	3.03	3.77	4.87	5.40	5.94
3¹/₂		3.500		88.900		.	.	2.67	3.55	4.42	5.70	6.34	6.97
4		4.000		101.60		.	.	3.06	4.07	5.07	6.54	7.28	8.01
Notes
1 Conventional weights are quoted, assuming the tube is specified as average wall. Add 10% to the weight for minimum wall tube.
Multiply quoted weights by 1.014 for austenitic and duplex steels, by 0.985 for ferritic and martensitic steels.
Dimension Tube
Tube Sizes – Heat Exchanger Tube
Heat exchanger tube – principal BWG sizes
Outside Diameter					Birmingham Wire Gauge (BWG)
					20 (0.889mm)	18 (1.245mm)	16 (1.651mm)	15 (1.829mm)	14 ( 2.108mm)	13 (2.413mm)	12 (2.769mm)	11 (3.048mm)	10 (3.403mm)

in				mm	Weight, kg/m (average wall¹)
¹/₄		0.250		6.350	0.12	0.16	0.19	–	–	–	–	–	–
⁵/_l6		0.313		7.950	0.15	0.21	0.25	0.28	–	–	–	–	–
³/₈		0.375		9.525	0.19	0.25	0.31	0.34	0.39	–	–	–	–
¹/₂		0.500		12.700	0.25	0.34	0.45	0.49	0.55	0.61	0.68	0.72	–
⁵/₈		0.625		15.875	0.33	0.45	0.58	0.64	0.71	0.80	0.89	0.97	–
³/₄		0.750		19.050	0.40	0.55	0.72	0.77	0.88	0.98	1.12	1.20	1.31
⁷/₈		0.875		22.225	0.46	0.64	0.83	0.92	1.04	1.18	1.32	1.44	1.58
¹		1.000		25.400	0.54	0.74	0.97	1.06	1.21	1.37	1.55	1.68	1.92
1¹/₈		1.125		28.575	0.61	0.83	1.10	1.21	1.37	1.56	1.76	1.92	2.11
1¹/₄		1.250		31.750	0.68	0.94	1.23	1.35	1.53	1.76	1.96	2.16	2.40
1³/₈		1.375		34.925	0.74	1.03	1.35	1.49	1.70	1.93	2.19	2.40	2.65
1¹/₂		1.500		38.100	0.82	1.13	1.49	1.64	1.87	2.17	2.40	2.63	2.92
1³/₄		1.750		44.450	0.97	1.32	1.74	1.92	2.20	2.50	2.84	3.10	3.44
²		2.000		50.800	–	1.52	1.99	2.20	2.53	2.89	3.27	3.59	3.97
2¹/₄		2.250		57.150	–	1.73	2.26	2.48	2.87	3.26	3.70	4.06	4.51
2³/₈		2.375		60.325	–	1.81	2.38	2.63	3.02	3.44	3.93	4.30	4.78
2¹/₂		2.500		63.500	–	1.91	2.52	2.78	3.18	3.66	4.14	4.54	5.04
2⁷/₈		2.875		73.025	–	2.20	2.90	3.20	3.68	4.20	4.79	5.25	5.83
³		3.000		76.200	–	2.31	3.04	3.35	3.85	4.39	5.00	5.49	6.10
3¹/₂		3.500		88.900	–	2.69	3.56	3.93	4.51	5.15	5.86	6.44	7.17
⁴		4.000		101.60	–	–	4.11	4.54	5.21	5.95	6.80	7.47	8.30
Dimension Tube
Tube Sizes – Instrumentation Tubing and Capillary Tubing
Instrumentation and hydraulic control tubing
OD		Wall thickness, mm
		0.5			1.0			1,5			2.0
mm		Weight, kg/m (conventional weights)
6		0.069			0.126			0.170
8					0.176			0.245
10					0.226			0.321			0.403
12					0.277			0.369			0.503
14								0.462			0.604
15					0.352			0.510			0.654
Notes
Conventional weights are quoted in the table above.
For austenitic stainless steels multiply the quoted weight by 1.014.
For ferritic and martensitic steels multiply the quoted weight by 0.985
Capillary or hypodermic tubing – typical sizes
Outside Diameter				Wall thickness
in		mm		mm
¹/₃₂		0.79		0.20
0.04		1.02		0.20
0.049		1.25		0.20
0.05		1.27		0.20
¹/₁₆		1.63		0.15 / 0.20 / 0.25 / 0.30 / 0.40 / 0.51 / 0.56
0.072		1.83		0.23
0.083		2.11		0.25
³/₃₂		2.38		0.15 / 0.20 / 0.30 / 0.40 / 0.51 / 0.91
0.118		3.00		0.30 / 0.50 / 0.70 / 0.90
¹/₈		3.18		0.20 / 0.25 / 0.51 / 0.81 / 0.91 / 1.22
0.138		3.51		0.40
⁵/₃₂		3.97		0.25 / 0.40 / 0.56 / 0.71 / 0.91
0.157		4.00		0.70 / 0.90 / 1.00
0.177		4.50		0.50
³/₁₆		4.76		0.13 / 0.20 / 0.25 / 0.40 / 0.46 / 0.51 / 0.56 / 0.71 / 0.81 / 0.91 / 1.22 / 1.63
0.197		5.00		0.50 / 0.75 / 1.00 / 1.50
Notes
When this tubing is used with compression fittings there is a maximum hardness requirement.B161 .
Dimension Tube
Tube Sizes – Structural and Decorative Tubing
Significant quantities of stainless steel tubing are used for structural and decorative (ornamental) applications.
Significant quantities of stainless steel tubing are used for structural and decorative (ornamental) applications.
Structural tubing may be specified to ASTM A554, Welded Stainless Steel Mechanical Tubing.
Square structural and decorative tube – typical sizes
Square size: Outside Dimensions				Wall thickness, mm
				1.0	1.2	1.5	2.0	3.0	4.0	5.0	6.0	8.0	10.0

mm		in		Weight, kg/m (austenitic stainless steel)
10.00				0.34		0.55
12.70		¹/₂		0.37	0.44	0.65
15.00					0.53	0.88
20.00				0.60	0.71		1.19
22.00					0.79	1.14
25.00					0.92	1.10	1.49	2.20
25.40		1			0.97	1.37
30.00					1.10	1.47	1.84	2.72
32.00		1¹/₄			1.20	1.62
35.00						1.75	2.15
38.00		1¹/₂			1.37	1.85	2.31	3.51
40.00					1.49	2.32	2.45	3.75	4.80
50.00						2.80	3.08	4.65	5.96	7.41
60.00							3.71	5.49	7.22	8.90
70.00							4.38	6.53	8.45	10.6
80.00							4.98	7.53	9.81	12.3
100.00		4					6.40	9.53	12.4	15.3	17.5	21.6
120.00								11.8	14.7	18.0			36.0
150.00								14.0	18.6	23.0	31.2	34.3	41.7
200.00								19.1	24.8	30.8	35.0	47.3	57.6
250.00										37.1		59.9	73.5
Notes – This table is based on manufacturer's data.
For ferritic and martensitic steel multiply the quoted austenitic steel weight by 0.97.
Dimension Tube
Tube Sizes – Structural and Decorative Tubing
Rectangular structural and decorative tube – typical sizes
Size: Outside Dimensions				Wall thickness, mm

				1.0	1.2	1.5	2.0	3.0	4.0	5.0	6.0	8.0	10.0

mm				Weight, kg/m (austenitic stainless steel)
20 x 10				0.30	0.35	0.44
25 x 10						0.59
25 x 15					0.72	0.90
30 x 10					0.71	0.90
30 x 15					0.82	0.76
30 x 20					0.92	1.14	1.49
40 x 15					1.01	1.25
40 x 20					1.10	1.37	1.84
40 x 30						1.61	2.13
50 x 25					1.41	1.75	2.31
50 x 30						1.85		3.61
50 x 40								4.08
60 x 20						1.85	2.45
60 x 30							2.80	4.13
60 x 40						2.32	3.08	4.65	5.60
70 x 40							3.40
80 x 40						2.80	3.71	5.49	7.22	8.94
80 x 60							4.38	6.53
100 x 40						3.29		6.53
100 x 50							4.68	6.95	9.09	11.3
100 x 60							4.98	7.53	9.81	12.3
120 x 40							4.98	7.53
120 x 60							5.64	8.12	11.1	13.8
120 x 80								9.53	12.4	15.4	17.3
150 x 50								9.53
150 x 80								10.7
150x 100								11.7	15.4	18.8	22.6	27.9
200×100								14.06	18.5	22.6	27.1	34.3	41.7
200×150											31.6	41.3
250×150											36.9	47.3
300×100												47.3
Notes – This table is based on manufacturer's data. – For ferritic and martensitic steel multiply the quoted austenitic steel weight by 0.97.
Dimension Tube
Tube Sizes – Structural and Decorative Tubing
Round structural and decorative tube – typical sizes
Outside Diameter (OD							Wall thickness, mm
							1.0	1.2	1.5	2.0	2.5	3.0	4.0
mm			in				Weight, kg/m (austenitic stainless steel)
12.70			¹/₂				0.29	0.35	0.42	0.54	0.64	0.73	–
14.00							0.33	0.39	0.47	0.60	0.72	0.83	–
15.00							0.35	0.42	0.51	0.65	0.78	0.90	–
15.88			⁵/₈				0.37	0.44	0.54	0.70	0.84	0.97	–
16.00							0.38	0.45	0.55	0.70	0.85	0.98	1.20
18.00							0.43	0.51	0.62	0.80	0.97	1.13	1.40
19.05			³/₄				0.45	0.54	0.66	0.85	1.04	1.21	1.51
20.00							0.48	0.57	0.70	0.90	1.10	1.28	1.60
22.00							0.53	0.63	0.77	1.00	1.22	1.43	1.80
22.22			⁷/₈				0.53	0.63	0.78	1.01	1.23	1.44	1.83
23.00							0.55	0.66	0.81	1.05	1.28	1.50	1.90
25.00							0.60	0.72	0.88	1.15	1.41	1.65	2.10
25.40			1				0.61	0.73	0.90	1.17	1.43	1.68	2.14
28.00							0.68	0.81	1.00	1.30	1.60	1.88	2.40
28.57			1¹/₈				0.69	0.82	1.02	1.33	1.63	1.92	2.46
30.00							0.73	0.87	1.07	1.40	1.72	2.03	2.60
31.75			1¹/₄				0.77	0.92	1.14	1.49	1.83	2.16	2.78
32.00							0.78	0.92	1.15	1.50	1.85	2.18	2.80
34.00							0.83	0.99	1.22	1.60	1.97	2.33	3.00
35.00							0.85	1.02	1.26	1.65	2.03	2.40	3.10
38.10			1¹/₂				0.93	1.11	1.37	1.81	2.23	2.64	3.42
40.00							0.98	1.17	1.45	1.90	2.35	2.78	3.61
42.00							1.03	1.23	1.52	2.00	2.47	2.93	3.81
44.45			1³/₄				1.09	1.30	1.61	2.13	2.63	3.11	4.05
45.00							1.10	1.32	1.63	2.15	2.66	3.15	4.11
48.30							1.18	1.42	1.76	2.32	2.87	3.40	4.44
50.00							1.23	1.47	1.82	2.40	2.97	3.53	4.61
50.80			2				1.25	1.49	1.85	2.44	3.02	3.59	4.69
51.00							1.25	1.50	1.86	2.45	3.04	3.61	4.71
53.00							1.30	1.56	1.93	2.55	3.16	3.76	4.91
54.00							1.33	1.59	1.97	2.60	3.22	3.83	5.01
55.00							1.35	1.62	2.01	2.65	3.29	3.91	5.11
58.00							1.43	1.71	2.12	2.80	3.47	4.13	5.40
60.00							1.48	1.77	2.20	2.90	3.60	4.30	5.60
63.50			2¹/₂				1.56	1.87	2.33	3.08	3.82	4.50	6.00
65.00							1.60	1.92	2.38	3.15	3.90	4.70	6.10
70.00							1.73	2.07	2.57	3.41	4.20	5.00	6.60
76.10			3				1.88	2.25	2.80	3.70	4.60	5.50	7.20
80.00							1.98	2.37	2.95	3.90	4.90	5.80	7.60
85.00							2.10	2.52	3.10	4.20	5.20	6.20	8.10
101.60			4				–	3.02	3.80	5.00	6.20	7.40	9.80
Notes – For ferritic and martensitic steel multiply the quoted austenitic steel weight by 0.97,
Dimension Tube
Chemical Compositions and Dimensional Tolerances
Chemical compositions
See ASTM A240/240M on page 1-6 of this Databook.
Standard tolerances for welded and seamless cold finished tube (ASTM A450/A450M)
(OD)				Variations in OD¹								Variation in tmin²
				Under				Over				Under	Over
in		mm		in		mm		in		mm		%	%
<1		<25.4		0.004		0.1		0.004		0.1		0	20
1		25.4		0.006		0.15		0.006		0.1		0	20
>1 to 1 ¹/₂		>25.4 to 38.1		0.006		0.15		0.006		0.15		0	20
>1¹/2 to <2		>38.1 to <50.8		0.008		0.2		0.008		0.2		0	22
2		50.8		0.008		0.2		0.008		0.2		0	22
>2 to 2¹/₂		>50.8 to 63.5		0.010		0.25		0.010		0.25		0	22
>2¹/₂ to 3		>63.5 to 76.2		0.012		0.3		0.012		0.3		0	22
>3 to 4		>76.2 to 101.6		0.015		0.38		0.015		0.38		0	22
Standard tolerances for seamless hot finished tube (ASTM A450/A450M)
Outside Diameter (OD)				Wall Thickness (t)				Variations in OD¹				Variation in tmin²
								Under		Over		Under	Over
in		mm		in		mm		in	mm	in	mm	%	%
<4		<101.6		<0.095		<2.4		¹/₃₂	0.8	¹/₆₄	0.4	0	40
<4		<101.6		>0.095 to 0.150		>2.4 to 3.8		¹/₃₂	0.8	¹/₆₄	0.4	0	35
<4		<101.6		>0.150 to 0.180		>3.8 to 4.6		¹/₃₂	0.8	¹/₆₄	0.4	0	33
<4		<101.6		>0.180		>4.6		¹/₃₂	0.8	¹/₆₄	0.4	0	28
>4 to 7¹/₂		>101.6 to 190.5		>0.095		>2.4		³/₆₄	1.2	¹/₆₄	0.4	–	–
>4 to 7¹/₂		>101.6 to 190.5		>0.095 to 0.150		>2.4 to 3.8		³/₆₄	1.2	¹/₆₄	0.4	0	35
>4 to 7¹/₂		>101.6 to 190.5		>0.150 to 0.180		>3.8 to 4.6		³/₆₄	1.2	¹/₆₄	0.4	0	33
>4 to 7¹/₂		>101.6 to 190.5		>0.180		>4.6		³/₆₄	1.2	¹/₆₄	0.4	0	28
>7¹/₂ to 9		>190.5 to 228.6		<0.095		<2.4		¹/₁₆	1.6	¹/₆₄	0.4	–	–
>7¹/₂to 9		>190.5 to 228.6		>0.095 to 0.150		>2.4 to 3.8		¹/₁₆	1.6	¹/₆₄	0.4	0	35
>7¹/₂ to 9		>190.5 to 228.6		>0.150 to 0.180		>3.8 to 4.6		¹/₁₆	1.6	¹/₆₄	0.4	0	33
>7¹/₂ to 9		>190.5 to 228.6		>0.180		>4.6		¹/₁₆	1.6	¹/₆₄	0.4	0	28
Notes 1 Includes ovality tolerance except for thin wall tube. 2 tmin = minimum wall thickness.
Standard Cut Lengths. Alternatives are: Random As agreed with the purchaser. Specified Cut lengths as specified, with end finish specified also.
Length tolerances. No tube shall be shorter than specified. Over length tolerances of tubes (before bending) are as follows: Seamless, hot finished tube: All sizes: 3/16 in (5mm) max.
Seamless, cold finished and welded tube: <2 in (50.8mm) OD: 1/s in (3mm) max. >2 in (50.8mm) OD: 3/16 in (5mm) max. These apply to lengths <24 ft (7.3 m) and are increased by 1/s in (3mm) for each additional 10 ft (3 m).
Dimension Tube
Tube Specifications – ASTM A269
Seamless and welded austenitic stainless steel tubing for general service
This specification covers nominal wall thickness austenitic stainless steel tubing for general corrosion resisting and low or high temperature service.
Tolerances
Cut Length. No tube may be shorter than specified. For tube <11/2in (38.1mm) cut length may be up to 1/8in (3 mm) longer than specified. For tube >=11/2in (38.1mm) cut length may be up to 3/16in (4.8mm) longer than specified. These tolerances are increased by 1/8in (3mm) for every 10 ft (3 m) over 24 ft (7.3 m), up to a maximum tolerance of 1/2in (13mm).

Cross-sectional tolerances
Outside Diameter (OD				Wall Thickness (t)				Variations in OD				Variation in t
								Under		Over		Under	Over
in		mm		in		mm		in	mm	in	mm	%	%
<¹/₂		<12.7		All		All		0.005	0.13	0.005	0.13	15	15
¹/₂ to <1¹/₂		12.7 to <38.1		<0.065		<1.6		0.005	0.13	0.005	0.13	10	10
¹/₂ to <1¹/₂		12.7 to <38.1		<0.065¹		<1.6¹		0.005	0.13	0.005	0.13	10	10
1¹/₂ to <3¹/₂		38.1 to <88.9		<0.095		<2.4		0.010	0.25	0.010	0.25	10	10
1¹/₂ to <3¹/₂		38.1 to <88.9		<0.095¹		<2.4¹		0.010	0.25	0.010	0.25	10	10
3¹/₂ to <5¹/₂		88.9 to <139.7		<0.150		<3.8		0.015	0.38	0.015	0.38	10	10
3¹/₂ to <5¹/₂		88.9 to <139.7		<0.150¹		<3.8¹		0.015	0.38	0.015	0.38	10	10
5¹/₂ to <8		139.1 to <203.2		<0.150		<3.8		0.030	0.76	0.030	0.76	10	10
5¹/₂ to <8		139.1 to <203.2		<0.150¹		<3.8¹		0.030	0.76	0.030	0.76	10	10
Notes 1 Thin walled tubes. Therefore ovality tolerance increases, but mean OD at a cross section must be within permissible variation

Material Seamless -Steel Boiler, Superheater, and Heat-Exchanger Tubes ASTM A213

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Ống liền mạch trao đổi nhiệt, thép không gỉ A213 Grade TP 321H	Heat-Exchanger Seamless Tube, A213 Grade TP 321	Heat-Exchanger Seamless Tube, A213 Grade TP 317LMN
Heat-Exchanger Seamless Tube, A213 Grade TP 317LN	Heat-Exchanger Seamless Tube, A213 Grade TP 317L	Heat-Exchanger Seamless Tube, A213 Grade TP 317
Heat-Exchanger Seamless Tube, A213 Grade TP 316LN	Heat-Exchanger Seamless Tube, A213 Grade TP 316N	Heat-Exchanger Seamless Tube, A213 Grade TP 316Ti
Heat-Exchanger Seamless Tube, A213 Grade TP 316H	Heat-Exchanger Seamless Tube, A213 Grade TP 316L	Heat-Exchanger Seamless Tube, A213 Grade TP 316
Heat-Exchanger Seamless Tube, A213 Grade TP 310MoLN	Heat-Exchanger Seamless Tube, A213 Grade TP 310HCbN	Heat-Exchanger Seamless Tube, A213 Grade TP 310HCb
Heat-Exchanger Seamless Tube, A213 Grade TP 310Cb	Heat-Exchanger Seamless Tube, A213 Grade TP 310H	Heat-Exchanger Seamless Tube, A213 Grade TP 310S
Heat-Exchanger Seamless Tube, A213 Grade TP 309HCb	Heat-Exchanger Seamless Tube, A213 Grade TP 309Cb	Heat-Exchanger Seamless Tube, A213 Grade TP 309H
Heat-Exchanger Seamless Tube, A213 Grade TP 309S	Heat-Exchanger Seamless Tube, A213 Grade TP 304LN	Heat-Exchanger Seamless Tube, A213 Grade TP 304N
Heat-Exchanger Seamless Tube, A213 Grade TP 304H	Heat-Exchanger Seamless Tube, A213 Grade TP 304L	Heat-Exchanger Seamless Tube, A213 Grade TP 304
Heat-Exchanger Seamless Tube, A213 Grade XM-19	Heat-Exchanger Seamless Tube, A213 Grade XM-19	Heat-Exchanger Seamless Tube A213 Grade T 911
Heat-Exchanger Seamless Tube A213 Grade T 122	Heat-Exchanger Seamless Tube A213 Grade T 92	Heat-Exchanger Seamless Tube A213 Grade T 91
Ống liền mạch trao đổi nhiệt, thép hợp kim A213 Grade T 91	Heat-Exchanger Seamless Tube A213 Grade T 36 Class 2	Heat-Exchanger Seamless Tube A213 Grade T 36 Class 1
Heat-Exchanger Seamless Tube A213 Grade T 36	Heat-Exchanger Seamless Tube A213 Grade T 24	Heat-Exchanger Seamless Tube A213 Grade T 23
Heat-Exchanger Seamless Tube A213 Grade T 22	Heat-Exchanger Seamless Tube A213 Grade T 21	Heat-Exchanger Seamless Tube A213 Grade T 17
Heat-Exchanger Seamless Tube A213 Grade T 12	Heat-Exchanger Seamless Tube A213 Grade T 11	Heat-Exchanger Seamless Tube A213 Grade T 9
Heat-Exchanger Seamless Tube A213 Grade T 5c	Heat-Exchanger Seamless Tube A213 Grade T 5b	Heat-Exchanger Seamless Tube A213 Grade T2
Heat-Exchanger Seamless Tube, A213 Grade TP 202	Heat-Exchanger Seamless Tube, A213 Grade TP 201	Heat-Exchanger Seamless Tube A213 Grade T2