Welded Steel tube E235, EN 10305-6

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 and tolerance

Deprecated: Function wp_make_content_images_responsive is deprecated since version 5.5.0! Use wp_filter_content_tags() instead. in /home/rdazpequ/public_html/wp-includes/functions.php on line 5413

Product Name:

Welded Steel tube E235, EN 10305-6

The alternative name or alias of a product:

Welded Steel pipe E235, EN 10305-6

ERW tube E235, EN 10305-6

Product Description:

Welded cold drawn tubes for hydraulic and pneumatic power systems
• Material: E235, Steel Number 1.0308
• Type: Welded (ERW)
•Standard EN 10305-6
• Size:
• Outer Diameter (OD): OD4 to OD80
• Wall Thickness (WT): 0.5mm to 10mm
• 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

EN 10305-6 is a European standard for welded cold drawn steel tubes for precision applications. E235 is a grade of steel specified in this standard, which has a minimum yield strength of 235 N/mm². The mechanical properties of welded steel tube E235 are determined by its composition, manufacturing process, and heat treatment.
Tensile strength is a measure of the maximum stress that the welded steel tube E235 can withstand before breaking. The minimum tensile strength of E235 steel is 480 N/mm². The yield strength is the stress at which the material starts to deform plastically, and it is the most important factor in determining the deformation and failure behavior of the material. The minimum yield strength of E235 steel is 235 N/mm².
The elongation at fracture is a measure of the ability of the material to deform before breaking. The minimum elongation at fracture of E235 steel is 25%. The reduction of area is a measure of the amount of deformation that the material undergoes before fracturing. The minimum reduction of area of E235 steel is 35%.
The hardness of the welded steel tube E235 is measured by the Rockwell hardness test. The minimum hardness of E235 steel is 52 HRB.
The impact strength of E235 steel is a measure of its ability to absorb energy before breaking under impact. The minimum impact strength of E235 steel is 27 J at 0°C.
The above mechanical properties are based on the condition that the welded steel tube E235 is supplied in a normalized or normalized and tempered condition. The properties may vary depending on the manufacturing process and heat treatment of the material.
In summary, welded steel tube E235, EN 10305-6, has a minimum tensile strength of 480 N/mm², a minimum yield strength of 235 N/mm², a minimum elongation at fracture of 25%, a minimum reduction of area of 35%, a minimum hardness of 52 HRB, and a minimum impact strength of 27 J at 0°C.

Inspection and testing

Inspection and testing of welded steel tube E235, EN 10305-6, are carried out to ensure that the product meets the required quality standards and specifications. The inspection and testing process is conducted in accordance with the relevant international standards and customer requirements.
The following are some of the commonly used inspection and testing methods for welded steel tube E235:
1. Visual inspection: This is the first stage of inspection, which involves the visual examination of the welded steel tube for any visible defects, such as cracks, porosity, and surface finish.
2. Dimensional inspection: This involves the measurement of the dimensions of the welded steel tube, including the outer diameter, inner diameter, wall thickness, and length.
3. Non-destructive testing (NDT): NDT methods are used to detect defects that are not visible to the naked eye, such as cracks and internal discontinuities. The most commonly used NDT methods for welded steel tube E235 include ultrasonic testing, radiography testing, and eddy current testing.
4. Mechanical testing: Mechanical testing is carried out to determine the mechanical properties of the welded steel tube, such as tensile strength, yield strength, elongation, and hardness. The most commonly used mechanical testing methods include tensile testing, hardness testing, and impact testing.
5. Chemical analysis: Chemical analysis is carried out to determine the chemical composition of the welded steel tube, including the percentages of carbon, manganese, sulfur, phosphorus, and other elements.
6. Metallographic analysis: Metallographic analysis involves the examination of the microstructure of the welded steel tube, which provides information on the quality of the weld and the overall material structure.
7. Surface inspection: Surface inspection involves the examination of the surface finish and coating of the welded steel tube.
The above inspection and testing methods ensure that welded steel tube E235 meets the required quality standards and specifications, and that it is suitable for its intended application.

Pressure and Temperature Ratings

The pressure rating and temperature of welded steel tube E235, EN 10305-6, depend on various factors such as the diameter, wall thickness, material grade, manufacturing process, and intended application. The pressure rating and temperature limit are important considerations in the design and selection of welded steel tube E235 for specific applications.
The pressure rating of welded steel tube E235 is determined by its wall thickness, diameter, and material strength properties. The pressure rating of welded steel tube E235 is calculated using various formulas and standards such as ASME B31.3, EN 13480, and API 5L. The pressure rating of welded steel tube E235 is typically expressed in terms of its maximum allowable working pressure (MAWP), which is the maximum pressure that the tube can safely withstand without causing failure or rupture. The MAWP of welded steel tube E235 is typically expressed in units of pounds per square inch (psi) or bar.
The temperature limit of welded steel tube E235 is determined by its material properties such as thermal conductivity, thermal expansion, and maximum service temperature. The maximum service temperature is the highest temperature that the welded steel tube E235 can be used without causing any degradation in its mechanical properties. The maximum service temperature of welded steel tube E235 is typically determined by the material manufacturer and can vary depending on the intended application.
In general, the pressure rating and temperature limit of welded steel tube E235 are higher for thicker-walled tubes with larger diameters and higher material grades. The pressure rating and temperature limit of welded steel tube E235 can also be affected by the manufacturing process, such as the method of welding and heat treatment used.
It is important to consult the relevant standards and specifications, as well as the manufacturer's data sheets and technical information, to determine the appropriate pressure rating and temperature limit for welded steel tube E235 for a specific application.

Surface Treatment

The surface treatment of welded steel tube E235, EN 10305-6, is an important aspect of the manufacturing process that can affect the tube's appearance, durability, and performance. Surface treatment is usually carried out to protect the tube from corrosion, improve its surface finish, and prepare it for further processing or painting. The following are some of the commonly used surface treatment methods for welded steel tube E235:
1. Pickling and passivation: This process involves the removal of surface impurities and the formation of a passive layer on the surface of the tube to improve its corrosion resistance. Pickling is carried out using an acidic solution such as hydrochloric acid, while passivation involves the application of a chemical solution such as nitric acid.
2. Shot blasting: This process involves the use of small metallic or ceramic particles to blast the surface of the tube, removing any surface contaminants and creating a uniform surface finish. Shot blasting can also improve the adhesion of paint or other surface coatings.
3. Painting and coating: This process involves the application of a protective coating or paint to the surface of the tube to improve its corrosion resistance, durability, and appearance. Commonly used coatings for welded steel tube E235 include zinc coatings, epoxy coatings, and polyurethane coatings.
4. Electroplating: This process involves the deposition of a thin layer of metal on the surface of the tube using an electrolytic process. Electroplating can improve the corrosion resistance and appearance of the tube.
5. Anodizing: This process involves the formation of a protective oxide layer on the surface of the tube by applying an electric current through an electrolytic solution. Anodizing can improve the corrosion resistance and appearance of the tube.
The choice of surface treatment method for welded steel tube E235 depends on various factors such as the intended application, the required surface finish, and the environmental conditions. It is important to consult the relevant standards and specifications, as well as the manufacturer's recommendations, to select the appropriate surface treatment method for a specific application.

Standard marking for steel tubes

Welded steel tube E235, EN 10305-6, is required to be marked in accordance with the relevant standards and specifications to indicate its material composition, size, and other important information. The standard marking of welded steel tube E235 typically includes the following information:
1. Manufacturer's name or trademark: This identifies the manufacturer of the welded steel tube E235.
2. Tube size and dimensions: This includes the nominal diameter, wall thickness, and length of the tube.
3. Material grade: This identifies the material composition of the tube, in this case, E235.
4. Heat number: This identifies the specific batch of raw material used in the manufacture of the tube.
5. Traceability code: This is a unique identification code that allows the tube to be traced back to its manufacturing history.
6. Standards and specifications: This indicates the relevant standards and specifications to which the tube complies, in this case, EN 10305-6.
The standard marking of welded steel tube E235 is typically applied to the tube using a permanent method such as stamping or laser marking. The marking should be clear, legible, and durable, and should not interfere with the integrity of the tube. The marking is typically located on the end of the tube or on a tag attached to the tube.
The standard marking of welded steel tube E235 is important for ensuring that the tube is correctly identified, tracked, and used in accordance with the relevant standards and specifications. It also allows for proper documentation and record-keeping throughout the manufacturing and distribution process.

Standard packing for steel Tubes

Welded steel tube E235, EN 10305-6, is required to be packed in a way that ensures its protection during transportation and storage, and facilitates its handling and identification. The standard packing for welded steel tube E235 typically includes the following:
1. Bundles: The tubes are usually bundled together in a fixed number of pieces or a fixed weight, depending on the manufacturer's specifications. The bundles are securely tied with steel straps or wires to prevent them from separating during transportation.
2. Plastic caps: Plastic caps are often used to protect the ends of the tubes from damage during transportation and storage. The caps are usually made of polyethylene or a similar material and are designed to fit securely over the ends of the tubes.
3. Wrapping: The bundles of tubes are typically wrapped in a waterproof material such as plastic sheeting or woven fabric to protect them from moisture and other environmental factors.
4. Labels: Each bundle of tubes should be labeled with information such as the manufacturer's name, material grade, size and dimensions, and other relevant information. The labels should be clear and legible, and securely attached to the bundle.
5. Wooden pallets: The bundles of tubes are often placed on wooden pallets to facilitate their handling and transportation. The pallets should be strong and sturdy, and capable of supporting the weight of the bundles without bending or breaking.
The standard packing for welded steel tube E235 may vary depending on the manufacturer's specifications and the requirements of the customer. It is important to consult the relevant standards and specifications, as well as the manufacturer's recommendations, to ensure that the tube is packed in a way that meets the necessary standards for protection and handling. Proper packing of welded steel tube E235 is essential to ensure that it arrives at its destination in good condition, ready for use.

Supplier

TAP Viet Nam International Investment Joint Stock Company (TAP Viet Nam) is a well-known supplier of high-quality Welded Steel Tube E235, EN 10305-6. The company is based in Vietnam and has been providing reliable and cost-effective solutions to customers in various industries for many years.
The company has a strong focus on quality and customer satisfaction, and their commitment to these values is reflected in the products and services they provide. Their Welded Steel Tube E235, EN 10305-6 is manufactured using the latest technology and the highest quality materials to ensure superior performance and durability.
Welded Steel Tube E235, EN 10305-6 is a precision steel tube that is commonly used in various applications such as automotive, mechanical, and hydraulic systems. It is made from high-quality steel that is carefully selected and processed to ensure that it meets the highest standards of quality and performance.
TAP Viet Nam's Welded Steel Tube E235, EN 10305-6 is known for its excellent mechanical properties, including high tensile strength, good ductility, and excellent formability. It is also highly resistant to corrosion and can withstand high pressure and temperature conditions, making it ideal for use in harsh environments.
One of the key advantages of TAP Viet Nam's Welded Steel Tube E235, EN 10305-6 is its reliability and durability. The company uses the latest manufacturing processes and technologies to ensure that every tube is produced to the highest standards of quality and consistency. This means that customers can rely on the tubes to perform consistently and reliably in their applications, even under demanding conditions.
In addition to their commitment to quality, TAP Viet Nam also offers excellent customer service and support. Their team of experienced professionals is dedicated to ensuring that every customer receives the best possible products and services. They work closely with customers to understand their specific needs and requirements, and then provide tailored solutions that meet those needs.
In conclusion, TAP Viet Nam International Investment Joint Stock Company is a reputable supplier of high-quality Welded Steel Tube E235, EN 10305-6. Their commitment to quality, reliability, and customer satisfaction makes them a trusted partner for customers in various industries. If you are looking for a reliable supplier of Welded Steel Tube E235, EN 10305-6, TAP Viet Nam is a company worth considering.

Dimensions and tolerances. Welded cold drawn Steel tubes EN 10305-6 EN 10305-6 is a European standard that specifies the technical delivery conditions for welded cold drawn steel tubes for precision applications. This standard applies to round, square, rectangular, and special shape welded tubes made from unalloyed or low alloy steels. The standard defines the dimensions and tolerances for these welded cold drawn steel tubes. These include: 1. Outer Diameter (OD): The outer diameter of the tube is measured from the outside edge to the opposite outside edge. The tolerances for OD are specified in the standard, and they depend on the size of the tube. For example, for tubes with an OD of up to 30mm, the tolerance is +/- 0.08mm. For tubes with an OD between 30mm and 50mm, the tolerance is +/- 0.1mm. 2. Inner Diameter (ID): The inner diameter of the tube is measured from the inside edge to the opposite inside edge. The tolerances for ID are also specified in the standard and depend on the size of the tube. For example, for tubes with an OD of up to 30mm, the tolerance is +/- 0.05mm. For tubes with an OD between 30mm and 50mm, the tolerance is +/- 0.07mm. 3. Wall Thickness: The wall thickness of the tube is measured as the distance between the inside and outside surfaces of the tube. The tolerances for wall thickness are specified in the standard and depend on the size of the tube. For example, for tubes with an OD of up to 30mm, the tolerance is +/- 10% of the wall thickness. For tubes with an OD between 30mm and 50mm, the tolerance is +/- 8% of the wall thickness. 4. Ovality: The ovality of the tube is the difference between the maximum and minimum diameters of the tube divided by the nominal diameter. The tolerances for ovality are specified in the standard and depend on the size of the tube. For example, for tubes with an OD of up to 30mm, the maximum ovality tolerance is 0.5% of the OD. For tubes with an OD between 30mm and 50mm, the maximum ovality tolerance is 0.6% of the OD. 5. Straightness: The straightness of the tube is measured as the maximum deviation from a straight line over a specified length. The tolerances for straightness are specified in the standard and depend on the size of the tube. For example, for tubes with an OD of up to 30mm, the maximum deviation tolerance is 0.3mm per meter. For tubes with an OD between 30mm and 50mm, the maximum deviation tolerance is 0.5mm per meter. 6. Length: The length of the tube is specified in the standard and can vary depending on the application. The standard specifies that the length tolerance for tubes up to 7 meters long is +/- 10mm. For tubes longer than 7 meters, the length tolerance is +/- 0.15% of the length. Overall, these dimensions and tolerances ensure that the welded cold drawn steel tubes meet the required specifications for precision applications.





















Sizes and tolerances Welded cold drawn Steel tubes EN 10305-6
Dimensions in millimetres
Specified outside diameter D with tolerance		Specified wall thickness T with tolerance		Specified inside diameter d with tolerance
4	±0,08	0.5	±0,05	3	±0,15
4	±0,08	1	±0,08	2	±0,15
5	±0,08	0.75	±0,06	3.5	±0,15
5	±0,08	1	±0,08	3	±0,15
6	±0,08	1	±0,08	4	±0,12
		1.5	±0,11	3	±0,15
		2	±0,15	2	±0,15
8	±0,08	1	±0,08	6	±0,10
		1.5	±0,11	5	±0,10
		2	±0,15	4	±0,15
		2.5	±0,19	3	±0,15
10	±0,08	1	±0,08	8	±0,08
		1.5	±0,11	7	±0,12
		2	±0,15	6	±0,15
		2.5	±0,19	5	±0,15
12	±0,08	1	±0,08	10	±0,08
		1.5	±0,11	9	±0,10
		2	±0,15	8	±0,12
		2.5	±0,19	7	±0,15
		3	±0,23	6	±0,15
14	±0,08	1	±0,08	12	±0,08
		1.5	±0,11	11	±0,08
		2	±0,15	10	±0,10
		2.5	±0,19	9	±0,12
		3	±0,23	8	±0,15
15	±0,08	1	±0,08	13	±0,08
		1.5	±0,11	12	±0,08
		2	±0,15	11	±010
		2.5	±0,19	10	±0,12
		3	±0,23	9	±0,15
16	±0,08	1	±0,08	14	±0,08
		1.5	±0,11	13
		2	±0,15	12
		2.5	±0,19	11	±0,15
		3	±0,23	10	±0,15
18	±0,08	1	±0,08	16	±0,08
		1.5	±0,11	15
		2	±0,15	14
		2.5	±0,19	13	±0,15
		3	±0,23	12	±0,15
20	±0,08	1.5	±0,11	17	±0,08
		2	±0,15	16	±0,08
		2.5	±0,19	15	±0,15
		3	±0,23	14
		3.5	±0,26	13
		4	±0,30	12
22	±0,08	1	±0,08	20	±0,08
		1.5	±0,11	19
		2	±0,15	18
		2.5	±0,19	17
		3	±0,23	16	±0,15
		3.5	±0,26	15
		4	±0,30	14
25	±0,08	1.5	±0,11	22	±0,08
		2	±0,15	21
		2.5	±0,19	20
		3	±0,23	19	±0,15
		4	±0,30	17
		4.5	±0,34	16
28	±0,08	1.5	±0,11	25	±0,08
		2	±0,15	24
		2.5	±0,19	23
		3	±0,23	22	±0,15
		4	±0,30	20	±0,15
30	±0,08	2	±0,15	26	±0,08
		2.5	±0,19	25	±0,08
		3	±0,23	24	±0,15
		4	±0,30	22	±0,15
35	±0,08	2	±0,15	31	±0,15
		2.5	±0,19	30
		3	±0,23	29
		4	±0,30	27
		5	±0,38	25
		6	±0,45	23
38	±0,08	2	±0,15	34	±0,15
		2.5	±0,19	33
		3	±0,23	32
		4	±0,30	30
		5	±0,38	28
		6	±0,45	26
		7	±0,53	24
		8	±0,60	22
42	±0,08	2	±0,15	38	±0,20
		3	±0,23	36
		4	±0,30	34
		5	±0,38	32
		8	±0,60	26
50	±0,20	4	±0,30	42	±0,20
		5	±0,38	40
		6	±0,45	38
		8	±0,60	34
55	±0,25	4	±0,30	47	±0,25
		6	±0,45	43
		8	±0,60	39
60	±0,25	5	±0,38	50	±0,25
60	±0,25	8	±0,60	44	±0,25
70	±0,30	5	±0,38	60	±0,30
70	±0,30	8	±0,60	54	±0,30
80	±0,35	6	±0,45	68	±0,35
		8	±0,60	64
		10	±0,75	60

Product info

Mr. Huân

Mrs. Chinh

Mrs. Yến

Mrs. Thảo

Mr. Khánh

Social network