Welded Steel tube E235, EN 10305-3

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

Description
Sizes

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Product Name:

Welded Steel tube E235, EN 10305-3

The alternative name or alias of a product:

Welded Steel pipe E235, EN 10305-3

ERW tube E235, EN 10305-3

Product Description:

• Material: E235, Steel Number 1.0308
• Type: Welded (ERW)
•Standard EN 10305-3
• Size:
• Outer Diameter (OD): OD6 to OD193.7
• Wall Thickness (WT): 0.6mm to 6mm
• Length: 6000mm To 12000mm and the length according to customer's request
Quality Control:
• ISO 9001:, ISO 14001:2015, OHSAS 18001:2007 Quality management systems – Requirements
• Other:
. Certification:
• EN 10204 3.1: Inspection certificate type 2.1, 3.1 and 3.2 issued in accordance with EN 10204
• Shipping: Delivery of goods to the address requested by the customer

Chemical composition

Steel grade

% by mass

Steel name

Steel number

Carbon. Max

Silicon. Max

Manganese. Max

Phosphorus. Max

Sulfur

Al_totalmin.

E235

1.0308

0.17

0,35

1.2

0,025

0,015

Mechanical Properties

Welded Steel Tube E235, EN 10305-3 is a low-carbon steel tube that is commonly used in the manufacturing of hydraulic and pneumatic systems. The mechanical properties of Welded Steel Tube E235, EN 10305-3 are important to ensure that the tube can withstand the stresses of its intended application.
The mechanical properties of Welded Steel Tube E235, EN 10305-3 include the following:
1. Tensile Strength: The tensile strength of Welded Steel Tube E235, EN 10305-3 is a measure of its ability to resist being pulled apart. The minimum tensile strength for this type of tube is 440 N/mm².
2. Yield Strength: The yield strength of Welded Steel Tube E235, EN 10305-3 is a measure of its ability to resist permanent deformation. The minimum yield strength for this type of tube is 235 N/mm².
3. Elongation: The elongation of Welded Steel Tube E235, EN 10305-3 is a measure of its ability to stretch without breaking. The minimum elongation for this type of tube is 25%.
4. Impact Strength: The impact strength of Welded Steel Tube E235, EN 10305-3 is a measure of its ability to withstand sudden shocks. The minimum impact strength for this type of tube is 27 J at room temperature.
5. Hardness: The hardness of Welded Steel Tube E235, EN 10305-3 is a measure of its resistance to indentation. The maximum hardness for this type of tube is 135 HB.
Overall, Welded Steel Tube E235, EN 10305-3 is a high-quality, durable steel tube that can withstand the stresses of its intended application. It is important to ensure that the mechanical properties of this type of tube are carefully monitored to ensure that it meets the relevant standards and specifications.

Inspection and testing

Inspection and testing play an essential role in ensuring the quality and reliability of Welded Steel Tube E235 according to EN 10305-3 standard. The following are some of the inspection and testing methods used:
1. Visual Inspection: This method is used to detect any visible surface defects, such as cracks, inclusions, and surface roughness. It is carried out using the naked eye or with the help of a magnifying glass.
2. Dimensional Inspection: It is used to verify the dimensional accuracy of the Welded Steel Tube E235, including diameter, wall thickness, and length. This is done using measuring tools such as calipers, micrometers, and gauges.
3. Non-destructive Testing (NDT): This method is used to detect any internal defects that may not be visible from the surface. NDT techniques such as ultrasonic testing (UT), eddy current testing (ET), and magnetic particle inspection (MPI) are used to detect flaws such as cracks, voids, and inclusions.
4. Tensile Testing: This test is used to determine the mechanical properties of the Welded Steel Tube E235, such as the yield strength, tensile strength, and elongation. The test involves subjecting the material to a uniaxial tensile force until it fractures.
5. Flattening Test: This test is used to determine the ductility and strength of the Welded Steel Tube E235. The tube is flattened to a certain degree, and any cracks or defects that may occur during the test are recorded.
6. Hardness Testing: This test is used to measure the hardness of the Welded Steel Tube E235. It is done using a hardness tester, and the result is expressed in units of Rockwell or Vickers.
7. Chemical Analysis: This test is carried out to determine the chemical composition of the Welded Steel Tube E235. It involves analyzing the sample using spectroscopic or wet chemical methods.
By performing these tests and inspections, TAP Viet nam International Investment Joint Stock Company ensures that the Welded Steel Tube E235 meets the requirements of EN 10305-3 standard and is suitable for its intended application.

Pressure and Temperature Ratings

The pressure rating and temperature for Welded Steel Tube E235, EN 10305-3, depend on various factors such as the dimensions of the tube, wall thickness, and the type of fluid or gas being transported through it. These factors need to be considered before determining the pressure and temperature rating for the tube.
According to the EN 10305-3 standard, the Welded Steel Tube E235 is designed for use in various industrial applications, including hydraulic and pneumatic systems. The maximum working pressure for this tube depends on its size, wall thickness, and the type of fluid being conveyed. It is essential to consult with the manufacturer or supplier to determine the maximum working pressure of the tube.
Regarding temperature, the Welded Steel Tube E235 is designed to operate in a temperature range between -50°C to +150°C. However, the maximum temperature that the tube can withstand depends on the material, wall thickness, and size of the tube.
In addition, the pressure and temperature rating for Welded Steel Tube E235 can also be affected by external factors such as the surrounding environment, installation conditions, and maintenance procedures. Therefore, it is essential to follow the manufacturer's instructions and industry standards to ensure the safe and reliable operation of the tube.

Surface Treatment

The surface treatment of Welded Steel Tube E235, EN 10305-3, is an important aspect that affects its durability, corrosion resistance, and overall performance. The tube's surface can be treated through various methods, including:
1. Phosphating: This process involves the application of a phosphate coating on the tube's surface. The phosphate coating provides improved adhesion for subsequent coatings, enhances corrosion resistance, and provides a better surface for painting or powder coating.
2. Galvanizing: This process involves the application of a layer of zinc on the tube's surface. The zinc coating provides excellent corrosion resistance, making it suitable for outdoor and marine environments. The galvanizing process can be done through hot-dip galvanizing or electroplating.
3. Powder coating: This process involves the application of a powder coating on the tube's surface. The powder is electrostatically charged and sprayed onto the tube's surface, then heated to form a smooth and durable coating. Powder coating provides excellent corrosion resistance, impact resistance, and an attractive finish.
4. Painting: This process involves the application of a liquid coating on the tube's surface. The liquid coating can be applied through spraying, dipping, or brushing. Painting provides excellent corrosion resistance and an attractive finish.
5. Anodizing: This process is suitable for aluminum tubes and involves the formation of a layer of aluminum oxide on the surface. The aluminum oxide layer provides excellent corrosion resistance, enhances the tube's durability, and provides an attractive finish.
In conclusion, the surface treatment of Welded Steel Tube E235 is an essential process that enhances its performance, durability, and corrosion resistance. The type of surface treatment applied depends on the tube's application, environmental conditions, and the desired performance requirements.

Standard marking for steel tubes

According to the EN 10305-3 standard, Welded Steel Tube E235 must be marked with the following information:
1. Manufacturer's name or trademark
2. Product standard (EN 10305-3)
3. Steel grade (E235)
4. Size (outer diameter x wall thickness)
5. Heat number and/or production batch number
6. Date of production
7. Inspection and testings symbol (if required by the standard)
8. CE marking (if required)
The marking must be visible and legible on each tube or bundle of tubes, and can be applied using various methods such as stamping, stenciling, or laser marking. The marking is important for traceability and identification purposes, and ensures that the product complies with the required standards and specifications.

Standard packing for steel Tubes

According to EN 10305-3 standard, Welded Steel Tube E235 can be delivered with different types of standard packing, including:
1. In bundles with steel strip or in wooden boxes: Tubes are bundled together with steel strips or packed in wooden boxes. The bundles can be secured with wire or steel strapping to prevent damage during transportation.
2. In hexagonal bundles: Tubes are bundled together in hexagonal shape and secured with steel strapping.
3. In containers: Tubes are packed in standard 20-foot or 40-foot containers, which can be loaded with up to 25 tons of tubes. The containers can be secured with wire or steel strapping to prevent movement during transportation.
4. In bulk: Tubes are shipped in bulk, without any packing or bundling. This method is only suitable for large orders and requires special handling and transportation equipment.
The choice of packing method depends on the quantity, size, and destination of the tubes, as well as the customer's preference and requirements. The packing must be designed to protect the tubes from damage during transportation and storage, and to ensure that they arrive at their destination in good condition.

Supplier

TAP Viet nam International Investment Joint Stock Company (TAP Viet nam) is a leading supplier of Welded Steel Tube E235, EN 10305-3. This high-quality steel tube is designed for use in a wide range of applications, including hydraulic and pneumatic systems, automotive parts, and industrial machinery.
The Welded Steel Tube E235 is a low carbon steel tube with excellent formability and weldability properties. It is produced by cold drawing and cold rolling processes, which ensure tight dimensional tolerances and a smooth surface finish. The tube is manufactured according to EN 10305-3, which specifies the technical delivery conditions for welded cold sized steel tubes of circular cross-section for precision applications.
One of the most important aspects of the Welded Steel Tube E235 is its mechanical properties. The tube has a minimum yield strength of 235 MPa and a minimum tensile strength of 480 MPa. This makes it highly resistant to deformation and breakage, even under heavy loads and high pressures. The tube also has excellent elongation and impact resistance properties, ensuring its reliability and durability over a long service life.
In addition to its mechanical properties, the Welded Steel Tube E235 undergoes rigorous inspection and testing to ensure its quality and reliability. The tube is inspected for its dimensions, surface quality, and mechanical properties before being released for sale. This ensures that each tube meets the required specifications and is suitable for its intended application.
The Welded Steel Tube E235 also has a high pressure rating and temperature range, making it suitable for use in a wide range of applications. The tube can handle pressures of up to 500 bar and temperatures of up to 120°C, making it ideal for use in hydraulic and pneumatic systems, automotive parts, and industrial machinery.
To ensure the highest level of quality, the Welded Steel Tube E235 undergoes surface treatment to prevent rust and corrosion. This includes coating the tube with a protective layer of oil or zinc, which provides long-lasting protection against the elements and extends the tube's service life.
Finally, the Welded Steel Tube E235 is marked with the appropriate identification and traceability markings in accordance with EN 10305-3. This includes the manufacturer's name, tube dimensions, material grade, and heat number. This ensures that each tube can be traced back to its source and provides valuable information for maintenance and repair purposes.
At TAP Viet nam, we pride ourselves on our commitment to quality and customer satisfaction. As a leading supplier of Welded Steel Tube E235, EN 10305-3, we ensure that each tube meets the highest standards of quality and reliability. Our team of experts is always available to provide technical advice and support, ensuring that our customers receive the best possible service and support.

Sizes and diameter tolerances Welded cold sized Steel tubes EN 10305-3 EN 10305-3 is a European standard that specifies the technical delivery conditions for welded cold-sized steel tubes for precision applications. These tubes are typically used in the mechanical engineering and automotive industries, where high precision and reliability are required. The standard defines several requirements for the sizes and diameter tolerances of the tubes. These include: 1. Nominal sizes: The nominal sizes of the tubes range from 6mm to 200mm, with wall thicknesses from 0.5mm to 10mm. 2. Dimensions: The standard specifies the dimensions of the tubes, including the outside diameter, wall thickness, and length. The outside diameter of the tubes ranges from 6mm to 200mm, with a tolerance of +/- 0.08mm. The wall thickness ranges from 0.5mm to 10mm, with a tolerance of +/- 10%. 3. Ovality: The standard specifies the ovality of the tubes, which is the difference between the maximum and minimum diameter of the tube divided by the nominal diameter. The ovality tolerance ranges from 0.4% to 1.0%, depending on the diameter and wall thickness of the tube. 4. Straightness: The standard specifies the straightness of the tubes, which is the maximum deviation from a straight line over the length of the tube. The straightness tolerance ranges from 0.15% to 0.25% depending on the diameter and wall thickness of the tube. 5. Length: The standard specifies the length of the tubes, which can be cut to specific lengths or supplied in random lengths. The tolerance on length is +/- 500mm or +/- 3% of the total length, whichever is greater. 6. Surface finish: The standard specifies the surface finish of the tubes, which must be free from defects and have a smooth, clean surface. In summary, the EN 10305-3 standard defines the sizes and diameter tolerances for welded cold-sized steel tubes for precision applications, including nominal sizes, dimensions, ovality, straightness, length, and surface finish. These specifications ensure that the tubes meet the high precision and reliability requirements of the mechanical engineering and automotive industries.
















Sizes and diameter tolerances Welded Steel tubes EN 10305-3
Dimensions in millimetres
Outside diameter D and tolerances		Wall thickness T (mm)
		0.6	0.8	1	1.2	1.5	1.8	2	2.2	2.5	3	3.5	4	4.5	5	5.5	6
		Mass per unit length (kg/m)
6	±0,12	0.080	0.103	0.123
8		0.109	0.142	0.173	0.201	0.240
10		0.139	0.182	0.222	0.260	0.314
12		0.169	0.221	0.271	0.320	0.388	0.453	0.493
15		0.213	0.280	0.345	0.408	0.499	0.586	0.641	0.694
16		0.228	0.300	0.370	0.438	0.536	0.630	0.691	0.749
18		0.257	0.339	0.419	0.497	0.610	0.719	0.789	0.857	0.956
19		0.272	0.359	0.444	0.527	0.647	0.764	0.838	0.911	1.02	1.18
20	±0,15	0.287	0.379	0.469	0.556	0.684	0.808	0.888	0.966	1.08	1.26
22		0.317	0.418	0.518	0.616	0.758	0.897	0.986	1.07	1.20	1.41
25		0.361	0.477	0.592	0.704	0.869	1.03	1.13	1.24	1.39	1.63
28		0.405	0.537	0.666	0.793	0.980	1.16	1.28	1.40	1.57	1.85	2.11
30		0.435	0.576	0.715	0.852	1.05	1.25	1.38	1.51	1.70	2.00	2.29
32	±0,20		0.616	0.765	0.911	1.13	1.34	1.48	1.62	1.82	2.15	2.46
35				0.838	1.00	1.24	1.47	1.63	1.78	2.00	2.37	2.72
38				0.912	1.09	1.35	1.61	1.78	1.94	2.19	2.59	2.98	3.35
40				0.962	1.15	1.42	1.70	1.87	2.05	2.31	2.74	3.15	3.55
42				1.01	1.21	1.50	1.78	1.97	2.16	2.44	2.89	3.32	3.75
42.4				1.02	1.22	1.51	1.80	1.99	2.18	2.46	2.91	3.36	3.79
44	±0,25			1.06	1.27	1.57	1.87	2.07	2.27	2.56	3.03	3.50	3.95
45				1.09	1.30	1.61	1.92	2.12	2.32	2.62	3.11	3.58	4.04
48.3				1.17	1.39	1.73	2.06	2.28	2.50	2.82	3.35	3.87	4.37	4.86
50				1.21	1.44	1.79	2.14	2.37	2.59	2.93	3.48	4.01	4.54	5.05
51					1.47	1.83	2.18	2.42	2.65	2.99	3.55	4.10	4.64	5.16
55	±0,30				1.59	1.98	2.36	2.61	2.86	3.24	3.85	4.45	5.03	5.60
57					1.65	2.05	2.45	2.71	2.97	3.36	4.00	4.62	5.23	5.83
60					1.74	2.16	2.58	2.86	3.14	3.55	4.22	4.88	5.52	6.16	6.78	7.39
63.5					1.84	2.29	2.74	3.03	3.33	3.76	4.48	5.18	5.87	6.55	7.21	7.87
70	±0,35				2.04	2.53	3.03	3.35	3.68	4.16	4.96	5.74	6.51	7.27	8.01	8.75
76	±0,35				2.21	2.76	3.29	3.65	4.00	4.53	5.40	6.26	7.10	7.93	8.75	9.56
80	±0,40				2.33	2.90	3.47	3.85	4.22	4.78	5.70	6.60	7.50	8.38	9.25	10.1
89						3.24	3.87	4.29	4.71	5.33	6.36	7.38	8.38	9.38	10.4	11.3	12.3
90						3.27	3.92	4.34	4.76	5.39	6.44	7.47	8.48	9.49	10.5	11.5	12.4
100	±0,50					3.64	4.36	4.83	5.31	6.01	7.18	8.33	9.47	10.6	11.7	12.8	13.9
101.6	±0,50					3.70	4.43	4.91	5.39	6.11	7.29	8.47	9.63	10.8	11.9	13.0	14.1
108	±0,60					3.94	4.71	5.23	5.74	6.50	7.77	9.02	10.3	11.5	12.7	13.9	15.1
114							4.98	5.52	6.07	6.87	8.21	9.54	10.9	12.2	13.4	14.7	16.0
120							5.25	5.82	6.39	7.24	8.66	10.1	11.4	12.8	14.2	15.5	16.9
127	±0,8						5.56	6.17	6.77	7.68	9.17	10.7	12.1	13.6	15.0	16.5	17.9
133							5.82	6.46	7.10	8.05	9.62	11.2	12.7	14.3	15.8	17.3	18.8
139.7							6.12	6.79	7.46	8.46	10.1	11.8	13.4	15.0	16.6	18.2	19.8
159	±1,0						6.98	7.74	8.51	9.65	11.5	13.4	15.3	17.1	19.0	20.8	22.6
168							7.38	8.19	9.00	10.2	12.2	14.2	16.2	18.1	20.1	22.0	24.0
193.7									10.4	11.8	14.1	16.4	18.7	21.0	23.3	25.5	27.8

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