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Seamless Austenitic Stainless Steel Pipe A376 Grade TP 321

Product info

Supplier: Tapgroup internation.,JSC
Address: Số 32 Lô N4D, đường X2A, Yên Sở, Hoàng Mai, Hà Nội
Phone: 0084 933 86 77 86
Email: info@tapgroup.vn
Website: https://supplier-pipe-tube-ongthep.com
Insurance: 12 tháng
Status: Mới 100%
Origin: China, Korea, Malaysia, Thailand, Japan, EU, G7
Catalogue Profile

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Name:  Seamless Austenitic Stainless Steel Pipe A376 Grade TP 321 
Type Of Pipe Seamless Austenitic Stainless Steel Pipe for High-Temperature A376 Grade TP 321 SMLS Pipe Stainless Steel A376 Grade TP 321 
Chemical Requirements: A376/A 376M
Grade UNS Designation Composition,%
TP 321 S32100 Carbon: 0.08 max Manganese max: 2.00 Phosphorus max: 0.045 Sulfur max: 0.030 Silicone max: 0.75
Nickel: 9.0–13.0 Chromium: 17.0–19.0 Molybdenum:  Titanium: B Columbium: …
Tantalum: … Nitrogen: … Others: …    
The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer.
The titanium content shall be not less than five times the carbon content and not more than 0.70 %.
The titanium content shall be not less than four times the carbon content and not more than 0.70 %.
The columbium content shall be not less than ten times the carbon content and not more than 1.10 %.
The columbium content shall be not less than eight times the carbon content and not more than 1.10 %.
This grade is intended for special purpose applications
Materials and Manufacture
Manufacture—At the manufacturer’s option, pipe may
be either hot finished or cold finished, with a suitable finishing
treatment, where necessary.
Heat Treatment:
All pipe shall be furnished in the heat-treated condition unless the order specifically states that no final heat
treatment shall be applied. When the order is furnished without
final heat treatment, each pipe shall be stenciled “HT-O.”
As an alternate to final heat treatment in a continuous
furnace or batch-type furnace, immediately following hot
forming while the temperature of the pipes is not less than the
specified minimum solution treatment temperature, pipes may
be individually quenched in water or rapidly cooled by other
means.
Grades TP304, TP304N, TP304LN, TP316, TP316N,
TP316LN, TP321, TP347, TP348, 16-8-2H, S 31725, and
S 31726 —Unless otherwise stated in the order, heat treatment
shall consist of heating to a minimum temperature of 1900 °F
[1040 °C] and quenching in water or rapidly cooling by other
means.
The purchaser may specify controlled structural or
special service characteristics which shall be used as a guide
for the most suitable heat treatment. If the final heat treatment
is at a temperature under 1900 °F [1040 °C], each pipe shall be
stenciled with the final heat treatment temperature in degrees
Fahrenheit or Celsius after the suffix “HT.”
Grades TP304H, TP316H, TP321H, TP347H,
TP348H, and 16-8-2H—If cold working is involved in pro 		cessing, the minimum solution-treating temperature for Grades
TP321H, TP347H, and TP348H shall be 2000 °F [1100 °C], for
Grades TP304H and TP316H, 1900 °F [1040 °C], and for
Grade 16-8-2H, 1800 °F [980 °C]. If the material is hot-rolled,
the minimum solution-treating temperatures for Grades
TP321H, TP347H, and TP348H shall be 1925 °F [1050 °C],
for Grades TP304H and TP316H, 1900 °F [1040 °C], and for
Grade 16-8-2H, 1800 °F [980 °C].
 Grade S34565—Heat treatment shall consist of heating to a temperature in the range of 2050 °F [1120 °C]
minimum and 2140 °F [1170 °C] maximum, and quenching in
water or rapidly cooling by other means.
A solution annealing temperature above 1950 °F [1065
°C] may impair the resistance to intergranular corrosion after
subsequent exposure to sensitizing conditions in TP321,
TP321H, TP347, TP347H, TP348, and TP348H. When specified by the purchaser, a lower temperature stabilization or resolution anneal shall be used subsequent to the initial high
temperature solution anneal (see Supplementary Requirement
S9).
The grain size of grades 304H, 316H, 321H, 347H, and
348H as determined in accordance with Test Methods E 112,
shall be No. 7 or coarser.
NPS Designator Lengths of Pipe in Lot
Under NPS 2
NPS 2 to NPS 5, incl
Over NPS 5 		400 or fraction thereof
200 or fraction thereof
100 or fraction thereof
Tensile Requirements
Grade UNS
Designation 		TensileStrength,
min, ksi / [MPa] 		Yield Strength,
min, ksi [MPa] 		Elongation in 2 in. or 50
mm
(or 4D) min, %
Longitudinal  Transverse
TP 304 S30400 75 [515] 30 [205] 35 25
TP 304H S30409 75 [515] 30 [205] 35 25
TP 304N S30451 80 [550] 35 [240] 35 25
TP 304LN S30453 75 [515] 30 [205] 35 25
TP 316 S31600 75 [515] 30 [205] 35 25
TP 316H S31609 75 [515] 30 [205] 35 25
TP 316N S31651 80 [550] 35 [240] 35 25
TP 316LN S31653  75 [515] 30 [205] 35 25
TP 321
#3⁄8 9 		S32100 75 [515] 30 [205] 35 25
TP 321H
>3⁄8 9 		S32109 70 [480] 25 [170] 35 25
TP 347 S34700 75 [515] 30 [205] 35 25
TP 347H S34709 75 [515] 30 [205] 35 25
TP 348 S34800 75 [515] 30 [205] 35 25
TP 348H S34809 75 [515] 30 [205] 35 25
16-8-2H S16800 75 [515] 30 [205] 35 25
. . . S31725  75 [515] 30 [205] 35 25
. . . S31726 80 [550] 35 [240] 35 25
. . . S34565  115 [790] 60 [415] 35 30
For grade TP304, NPS8 or larger, and in schedules 140 and heavier, the
required minimum tensile strength shall be 70 ksi [480 MPa].
 Prior to the issuance of A 376/A 376M – 88, the tensile and yield strength
values were 75 [520] and 30 [210] respectively, for nominal wall greater than 3⁄8 in.
[9.5 mm]
Wall Thickness: Welded and Seamless Wrought Steel Pipe, ANSI /ASME B36.10M
SCH 5 SCH 10 SCH 20 SCH 30 SCH STD SCH 40
SCH 60 SCH XS SCH 80 SCH 100 SCH 120 SCH 160
SCH XXS SCH XX.H        
Dimensions of Welded and Seamless Stainless Steel Pipe ANSI /ASME B36.19M
The decimal thickness listed for the respective pipe sizes represents their nominal or average wall dimensions.
NPS
Designator 		Outside Diameter Nominal Wall Thickness
Schedule 5S
mm 		Schedule 10S
mm 		Schedule 40S
mm 		Schedule 80S
mm
1⁄8 10.29 … 1.24 1.73 2.41
1⁄4 13.72 … 1.65 2.24 3.02
3⁄8 17.15 … 1.65 2.31 3.20
1⁄2 21.34 1.65 2.11 2.77 3.73
3⁄4 26.67 1.65 2.11 2.87 3.91
1.0 33.40 1.65 2.77 3.38 4.55
11⁄4 42.16 1.65 2.77 3.56 4.85
11⁄2 48.26 1.65 2.77 3.68 5.08
2 60.33 1.65 2.77 3.91 5.54
21⁄2 73.03 2.11 3.05 5.16 7.01
3 88.90 2.11 3.05 5.49 7.62
31⁄2 101.60 2.11 3.05 5.74 8.08
4 114.30 2.11 3.05 6.02 8.56
5 141.30 2.77 3.40 6.55 9.52
6 168.28 2.77 3.40 7.11 10.97
8 219.08 2.77 3.76 8.18 12.70
10 273.05 3.40 4.19 9.27 12.70
12 323.85 3.96 4.57 9.52 12.70
14 355.60 3.96 4.78B … …
16 406.40 4.19 4.78B … …
18 457.20 4.19 4.78B … …
20 508.00 4.78 5.54B … …
22 558.80 4.78 5.54B … …
24 609.60 5.54 6.35 … …
30 762.00 6.35 7.92 … …
Schedules 5S and 10S wall thicknesses do not permit threading in accordance with the American National Standard for Pipe Threads (ANSI B1.20.1).
These do not conform to the American National Standard for Welded and Seamless Wrought Steel Pipe (ANSI B36.10–1979).
NPS Designator Hole Diameter
above 1⁄2 to 1 ¼
above 1 ¼to 2
above 2 to 5
above 5 		0.039 in. (1 mm)
0.055 in. (1.4 mm)
0.071 in. (1.8 mm)
0.087 in. (2.2 mm)
0.106 in. (2.7 mm)
End of pipe end
Plain Ends (PE) The PE pipes will generally be used for the smaller diameters pipe systems and in combination with Slip On flanges and Socket Weld fittings and flanges.
Threaded Ends (TE) The TE implementation speaks for itself, this performance will generally used for small diameters pipe systems, and the connections will be made with threaded flanges and threaded fittings.
Beveled Ends (BE) The BE implementation is applied to all diameters of buttweld flanges or buttweld fittings, and will be directly welded (with a small gap 3-4 mm) to each other or to the pipe. Ends are mostly be beveled to angle 30° (+ 5° / -0°) with a root face of 1.6 mm (± 0.8 mm).
Grooved ends (example Victaulic pipes): these are pipes that allow a quick connection, used for non-critical applications
Threaded and coupled ends (T&C), generally used for gas distribution,
Threaded connections are the most common pipe fittings used in oil and gas transportation systems. Due to external vibrations, cyclic loads, and pollution, the fitting parts may start getting loose, which could result in pipeline leaks and other environmental disasters. It is of great significance to develop a reliable technique that could provide…
Type end : Plain Ends / Beveled Ends: Tubes – Pipe
• Bevel End (BE)
• Bevel Both Ends (BBE)
• Bevel Large End (BLE)
• Bevel One End (BOE)
• Bevel Small End (BSE)
• Bevel for Welding (BFW)
• Buttweld End (BE) 		• End of Pipe (EOP)
• Flange One End (FOE)
• Plain End (PE)
• Plain Both Ends (PBE)
• Plain One End (POE)
• Thread End (TE)
• Thread Both Ends (TBE) 		• Thread Large End (TLE)
• Thread One End (TOE)
• Thread Small End (TSE)
• Threads Only (TO)
• Threads per Inch (TP I)
 Plastic End Caps for Tubing and Pipe Ends 
Pipe End Caps Pipe End Plugs Threaded Pipe Caps Threaded Pipe Plugs  
The American Society Of Mechanical Engineers American National Standards Institute
ASME B36.19M ANSI B36.19
ASME B36.10M ANSI B36.10

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Product related keywords
Seamless Austenitic Stainless Steel Pipe, A376 Grade TP 321 Stainless Steel Pipe, A376 Grade TP 321, SMLS
Seamless Pipe SUS 321 SMLS Pipe SUS 321
Seamless Pipe STS 321 SMLS Pipe STS 321
Seamless Pipe SS 321 SMLS Pipe SS 321
Stainless Steel Pipe, A376 Grade TP 321, Schedule, SCH 5S , SCH 10S, SCH 20, SCH 30, SCH STD, SCH 40S, SCH 60, SCH XS, SCH 80S, SCH 100, SCH 120, SCH 160, SCH XXS, SCH XX.H 

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Dimensions of Steel Pipes ASME B36.10 and B36.19M
Seamless Pipe  Austenitic Stainless Steel Pipe High-Temperature, A376 Grade TP 321
1/2 inches  to 2 inches 
NPS 1/2" 3/4" 1" 1¼" 1½" 2"
OD 21.3 26.7 33.4 42.2 48.3 60.3
  Wall Thickness
Sch 5 1.65 1.65 1.65 1.65 1.65 1.65
Sch 5S 1.65 1.65 1.65 1.65 1.65 1.65
Sch 10 2.11 2.11 2.77 2.77 2.77 2.77
Sch 10S 2.11 2.11 2.77 2.77 2.77 2.77
Sch 20 – … – … – …
Sch 30 2.41 2.41 2.90 2.97 3.18 3.18
STD 2.77 2.87 3.38 3.56 3.68 3.91
Sch 40 2.77 2.87 3.38 3.56 3.68 3.91
Sch 40S 2.77 2.87 3.38 3.56 3.68 3.91
Sch 60 – … – … – …
XS 3.73 3.91 4.55 4.85 5.08 5.54
Sch 80 3.73 3.91 4.55 4.85 5.08 5.54
Sch 80S 3.73 3.91 4.55 4.85 5.08 5.54
Sch 100 – … – … – …
Sch 120 – … – … – …
Sch 140 – … – … – …
XXS 7.47 7.82 9.09 9.70 10.15 11.07
Sch 160 4.78 5.56 6.35 6.35 7.14 8.74
NPS = Nominal Pipe Size   O.D. = Outside Diameter
Dimensions are in millimeters unless otherwise indicated.
DIMENSIONAL TOLERANCES FOR SEAMLESS AND WELDED PIPES ASTM A530
Nominal pipe size
up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / – 0.79 mm
10 thru 18 = + 2.37 mm / – 0.79 mm | 20 thru 24 = + 3.18 mm / – 0.79 mm
Wall Thickness Length Weight
All Diameters = – 12.5% + 6.40 mm / – 0 mm Weight = + 10% / – 1.5%
2 1/2  inches  to 5 inches 
NPS 2½" 3" 3½" 4" 5"
OD 73 88.9 101.6 114.3 141.3
  Wall Thickness
Sch 5 2.11 2.11 2.11 2.11 2.77
Sch 5S 2.11 2.11 2.11 2.11 2.77
Sch 10 3.05 3.05 3.05 3.05 3.40
Sch 10S 3.05 3.05 3.05 3.05 3.40
Sch 20   …     …
Sch 30 4.78 4.78 4.78 4.78 …
STD 5.16 5.49 5.74 6.02 6.55
Sch 40 5.16 5.49 5.74 6.02 6.55
Sch 40S 5.16 5.49 5.74 6.02 6.55
Sch 60   …     …
XS 7.01 7.62 8.08 8.56 9.53
Sch 80 7.01 7.62 8.08 8.56 9.53
Sch 80S 7.01 7.62 8.08 8.56 9.53
Sch 100   …     …
Sch 120   …   11.13 12.7
Sch 140   …     …
XXS 14.02 15.24   17.12 19.05
Sch 160 9.53 11.13   13.49 15.88
NPS = Nominal Pipe Size   O.D. = Outside Diameter
Dimensions are in millimeters unless otherwise indicated.
DIMENSIONAL TOLERANCES FOR SEAMLESS AND WELDED PIPES ASTM A530
Nominal pipe size
up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / – 0.79 mm
10 thru 18 = + 2.37 mm / – 0.79 mm | 20 thru 24 = + 3.18 mm / – 0.79 mm
Wall Thickness Length Weight
All Diameters = – 12.5% + 6.40 mm / – 0 mm Weight = + 10% / – 1.5%
6 inches  to 14 inches 
NPS 6" 8" 10" 12" 14"
OD 168.3 219 273 323.9 355.6
  Wall Thickness
Sch 5 2.77 2.77 3.40 3.96 3.96
Sch 5S 2.77 2.77 3.40 3.96 3.96
Sch 10 3.40 3.76 4.19 4.57 6.35
Sch 10S 3.40 3.76 4.19 4.57 4.78
Sch 20   6.35 6.35 6.35 7.92
Sch 30   7.04 7.80 8.38 9.53
STD 7.11 8.18 9.27 9.53 9.53
Sch 40 7.11 8.18 9.27 10.31 11.13
Sch 40S 7.11 8.18 9.27 9.53 9.53
Sch 60   10.31 12.70 14.27 15.06
XS 10.97 12.70 12.70 12.70 12.70
Sch 80 10.97 12.70 15.09 17.48 19.05
Sch 80S 10.97 12.70 12.70 12.70 12.70
Sch 100   15.09 18.26 21.44 23.83
Sch 120 14.27 18.26 21.44 25.40 27.79
Sch 140   20.62 25.40 28.58 31.75
XXS 21.95 22.23 25.40 25.40  
Sch 160 18.26 23.01 28.58 33.32 35.71
NPS = Nominal Pipe Size   O.D. = Outside Diameter
Dimensions are in millimeters unless otherwise indicated.
DIMENSIONAL TOLERANCES FOR SEAMLESS AND WELDED PIPES ASTM A530
Nominal pipe size
up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / – 0.79 mm
10 thru 18 = + 2.37 mm / – 0.79 mm | 20 thru 24 = + 3.18 mm / – 0.79 mm
Wall Thickness Length Weight
All Diameters = – 12.5% + 6.40 mm / – 0 mm Weight = + 10% / – 1.5%
16 inches to 24 inches 
NPS 16" 18" 20" 22" 24"
OD 406.04 457.2 508 558.8 609.6
  Wall Thickness
Sch 5 4.19 4.19 4.78 4.78 5.54
Sch 5S 4.19 4.19 4.78 4.78 5.54
Sch 10 6.35 6.35 6.35 6.35 6.35
Sch 10S 4.78 4.78 5.54 5.54 6.35
Sch 20 7.92 7.92 9.53 9.53 9.53
Sch 30 9.53 11.13 12.70 12.70 14.27
STD 9.53 9.53 9.53 9.53 9.53
Sch 40 12.70 14.27 15.09 … 17.48
Sch 40S 9.53 9.53 9.53 … 9.53
Sch 60 16.66 19.05 20.62 22.23 24.61
XS 12.70 12.70 12.70 12.70 12.70
Sch 80 21.44 23.83 26.19 28.58 30.96
Sch 80S 12.70 12.70 12.70 … 12.70
Sch 100 26.19 29.36 32.54 34.93 38.89
Sch 120 30.96 34.93 38.10 41.28 46.02
Sch 140 36.53 39.67 44.45 47.63 52.37
XXS   …   …  
Sch 160 40.49 45.24 50.01 53.98 59.54
NPS = Nominal Pipe Size   O.D. = Outside Diameter
Dimensions are in millimeters unless otherwise indicated.
DIMENSIONAL TOLERANCES FOR SEAMLESS AND WELDED PIPES ASTM A530
Nominal pipe size
up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / – 0.79 mm
10 thru 18 = + 2.37 mm / – 0.79 mm | 20 thru 24 = + 3.18 mm / – 0.79 mm
Wall Thickness Length Weight
All Diameters = – 12.5% + 6.40 mm / – 0 mm Weight = + 10% / – 1.5%
26 inches to 48 inches 
26" > 48" Wall Thickness and Weight
NPS OD   5 5S 10
26 660 wt     7.92
kg/m 127.36
28 711 wt     7.92
kg/m 137.32
30 762 wt 6.35 6.35 7.92
kg/m 118.34 118.31 147.29
32 813 wt     7.92
kg/m 157.25
34 864 wt     7.92
kg/m 167.21
36 914 wt     7.92
kg/m 176.97
38 965 wt      
kg/m
40 1016 wt      
kg/m
42 1067 wt      
kg/m
44 1118 wt      
kg/m
46 1168 wt      
kg/m
48 1219 wt      
kg/m
26 – 48 Wall Thickness and Weight
NPS OD   10S 20 30
26 660 wt   12.70  
kg/m 202.74
28 711 wt   12.70 15.88
kg/m 218.71 272.23
30 762 wt 7.92 12.70 15.88
kg/m 132.91 234.68 292.20
32 813 wt   12.70 15.88
kg/m 250.65 312.17
34 864 wt   12.70 15.88
kg/m 266.63 332.14
36 914 wt   12.70 15.88
kg/m 282.29 351.73
38 965 wt      
kg/m
40 1016 wt      
kg/m
42 1067 wt      
kg/m
44 1118 wt      
kg/m
46 1168 wt      
kg/m
48 1219 wt      
kg/m
26 – 48 Wall Thickness and Weight
NPS OD   STD 40 XS
26 660 wt 9.53   12.70
kg/m 152.88 202.74
28 711 wt 9.53   12.70
kg/m 164.86 218.71
30 762 wt 9.53   12.70
kg/m 176.85 234.68
32 813 wt 9.53 17.48 12.70
kg/m 188.83 342.94 250.65
34 864 wt 9.53 17.48 12.70
kg/m 200.82 364.92 266.63
36 914 wt 9.53 19.05 12.70
kg/m 212.57 420.45 282.29
38 965 wt 9.53   12.70
kg/m 224.56 298.26
40 1016 wt 9.53   12.70
kg/m 236.54 314.23
42 1067 wt 9.53   12.70
kg/m 248.53 330.21
44 1118 wt 9.53   12.70
kg/m 260.52 346.18
46 1168 wt 9.53   12.70
kg/m 272.70 361.84
48 1219 wt 9.53   12.70
kg/m 284.25 377.81
NPS = Nominal Pipe Size
O.D. = Outside Diameter
WT = Walltickness
KG/M = Kilogram per meter
Dimensions are in millimeters unless otherwise indicated
Weights are in kilograms p/meter and approximately given
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