Rectangular Steel tube E235, EN-10305-5

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
Description

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Product Name:

Rectangular Steel tube E235, EN-10305-5

The alternative name or alias of a product:

Rectangular Steel tube E235, EN-10305-5

Product Description:

• Steel name: E235 Steel Number 1.0308
• Standard: EN-10305 Part 5
• Type: Welded (ERW)
• Size:
• Outer Diameter 15 to 120
• Wall Thickness (WT): 1mm to 4mm
• Length: 6000mm To 12000mm
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

E235 is a carbon steel material that conforms to the European standard EN-10305-5. Rectangular steel tubes made of this material are commonly used in the construction of machinery, equipment, and other structures that require high strength and durability.
The mechanical properties of rectangular steel tubes made from E235 are determined by their chemical composition and processing, including factors such as heat treatment and cold working.
Below are the typical mechanical properties of rectangular steel tubes made from E235:
1. Tensile strength: The tensile strength of E235 rectangular steel tubes is typically between 340 MPa and 480 MPa. Tensile strength refers to the maximum amount of stress that a material can withstand before it breaks under tension.
2. Yield strength: The yield strength of E235 rectangular steel tubes is typically between 235 MPa and 355 MPa. Yield strength refers to the amount of stress that a material can withstand before it begins to deform plastically.
3. Elongation: The elongation of E235 rectangular steel tubes is typically between 25% and 35%. Elongation refers to the amount of deformation that a material can undergo before it breaks under tension.
4. Hardness: The hardness of E235 rectangular steel tubes is typically between 120 and 160 HB. Hardness refers to the resistance of a material to indentation or scratching.
5. Impact strength: The impact strength of E235 rectangular steel tubes is typically between 27 J and 47 J. Impact strength refers to the amount of energy required to fracture a material under impact loading.
It is important to note that these mechanical properties may vary depending on the manufacturing process and the specific dimensions of the rectangular steel tube. Therefore, it is important to consult the manufacturer's specifications for the specific product being used.

Inspection and testing

Rectangular Steel Tube E235, EN-10305-5 is subjected to various inspection and testing procedures to ensure that it meets the required quality standards. The following are some of the commonly performed inspections and tests:
1. Visual Inspection: A visual inspection is performed to check for any surface defects such as cracks, pits, or surface irregularities.
2. Dimensional Inspection: The rectangular steel tube is checked for its dimensional accuracy and compliance with the specified tolerances.
3. Chemical Composition Analysis: A chemical composition analysis is conducted to ensure that the material conforms to the required composition specifications.
4. Tensile Testing: Tensile testing is conducted to determine the tensile strength, yield strength, and elongation of the rectangular steel tube.
5. Hardness Testing: The hardness of the rectangular steel tube is measured using various methods such as the Brinell hardness test, Rockwell hardness test, and Vickers hardness test.
6. Charpy Impact Testing: Charpy impact testing is performed to evaluate the toughness and impact resistance of the rectangular steel tube.
7. Ultrasonic Testing: Ultrasonic testing is performed to detect any internal defects such as voids, cracks, or inclusions that may affect the mechanical properties of the rectangular steel tube.
8. Eddy Current Testing: Eddy current testing is used to detect surface and sub-surface defects such as cracks, corrosion, and laps.
9. Radiographic Testing: Radiographic testing is used to detect any internal defects in the rectangular steel tube.
10. Magnetic Particle Inspection: Magnetic particle inspection is used to detect surface and sub-surface defects in the rectangular steel tube by creating a magnetic field and applying ferromagnetic particles to the surface.
All these inspections and tests are performed according to the relevant international standards to ensure that the rectangular steel tube is of high quality and meets the specified requirements. The inspection and testing process helps to ensure the safety, reliability, and durability of the rectangular steel tube.

Pressure and Temperature Ratings

The pressure rating and temperature limits for Rectangular Steel Tube E235, EN-10305-5 depend on various factors such as the dimensions of the tube, the wall thickness, the material composition, and the application for which it is used. It is important to consult the manufacturer's specifications for the specific product being used to determine the pressure rating and temperature limits.
Generally, rectangular steel tubes made from E235 are used in applications where high strength and durability are required, such as in the construction of machinery and equipment. The pressure rating and temperature limits for these tubes are typically higher than those for standard carbon steel tubes.
The pressure rating for rectangular steel tubes can be calculated using the formula:
PR = (2 * S * t) / D
Where PR is the pressure rating, S is the allowable stress, t is the wall thickness, and D is the outside diameter of the tube.
The allowable stress for rectangular steel tubes made from E235 can be determined from the material's yield strength, using a safety factor that depends on the application and operating conditions.
The temperature limits for rectangular steel tubes depend on the application and the material's ability to withstand thermal stresses. At high temperatures, the material may undergo thermal expansion or deformation, which can affect its mechanical properties. Therefore, it is important to consult the manufacturer's specifications for the specific product being used to determine the temperature limits.
In general, rectangular steel tubes made from E235 can withstand high pressures and temperatures, making them suitable for a wide range of applications in various industries. However, it is important to ensure that the pressure rating and temperature limits are not exceeded to ensure the safety and reliability of the application.

Surface Treatment

Rectangular Steel Tube E235, EN-10305-5 can be subjected to various surface treatments to improve its properties and extend its lifespan. The following are some of the commonly used surface treatments for rectangular steel tubes:
1. Hot-dip Galvanizing: This process involves immersing the rectangular steel tube in a bath of molten zinc to form a protective layer on its surface. The zinc coating protects the steel from corrosion and rust, making it suitable for outdoor applications.
2. Electroplating: Electroplating is a process in which a layer of metal is deposited on the surface of the rectangular steel tube using an electrical current. This process is used to improve the corrosion resistance of the steel.
3. Powder Coating: Powder coating is a process in which a dry powder is applied to the surface of the rectangular steel tube and then heated to form a hard, durable coating. This process is used to improve the aesthetics of the steel and to protect it from corrosion and abrasion.
4. Painting: Painting is a common surface treatment for rectangular steel tubes used in indoor applications. A layer of paint is applied to the surface of the tube to improve its aesthetics and protect it from corrosion and rust.
5. Passivation: Passivation is a chemical process that is used to remove any surface contaminants from the rectangular steel tube and to form a protective oxide layer on its surface. This process is used to improve the corrosion resistance of the steel.
6. Shot Blasting: Shot blasting is a process in which steel shot is used to blast the surface of the rectangular steel tube to remove any rust, scale, or contaminants. This process is used to prepare the surface of the steel for further treatment or painting.
The choice of surface treatment depends on the application and the specific requirements of the rectangular steel tube. It is important to consult the manufacturer's specifications for the specific product being used to determine the appropriate surface treatment. The surface treatment helps to extend the lifespan of the rectangular steel tube and improve its properties, making it suitable for various applications.

Standard marking for steel tubes

Rectangular Steel Tube E235, EN-10305-5 is marked according to specific standards to ensure traceability and to provide important information about the product. The following is a detailed description of the standard marking of rectangular steel tubes made from E235:
1. Manufacturer's Identification: The manufacturer's identification mark is usually stamped on the rectangular steel tube. This mark may include the manufacturer's name, logo, or registered trademark.
2. Product Identification: The product identification mark provides important information about the product, such as the material grade, standard specification, and size. This mark may include the product name, material designation, and dimensions of the tube.
3. Heat Number: The heat number is a unique identification number assigned to each batch of rectangular steel tubes during the manufacturing process. This number is used to trace the production history of the tube and to identify any issues that may arise during use.
4. Country of Origin: The country of origin is marked on the rectangular steel tube to indicate where the product was manufactured.
5. Batch Number: The batch number is a unique identification number assigned to each batch of rectangular steel tubes produced by the manufacturer. This number is used to identify and trace specific batches of tubes for quality control purposes.
6. Test Markings: The rectangular steel tube may be marked with test markings to indicate that it has undergone specific tests, such as pressure testing, tensile testing, or hardness testing. These markings provide important information about the quality and performance of the tube.
7. Additional Markings: Depending on the application, additional markings may be required on the rectangular steel tube. For example, if the tube is used in the construction of pressure vessels, it may need to be marked with the pressure rating and maximum allowable temperature.
The standard marking of rectangular steel tubes made from E235 is important for ensuring product traceability, quality control, and safety. It is important to consult the manufacturer's specifications for the specific product being used to ensure that it meets the required marking standards.

Standard packing for steel Tubes

Rectangular Steel Tube E235, EN-10305-5 is typically packed and shipped according to standard industry practices to ensure safe transportation and delivery. The following is a detailed description of the standard packing for rectangular steel tubes made from E235:
1. Bundles: Rectangular steel tubes are typically bundled together using steel straps or wire ties. The tubes are usually arranged in a square or rectangular shape within the bundle to minimize damage during transportation. The size and weight of the bundle may vary depending on the size and quantity of the tubes being shipped.
2. Plastic Caps: Plastic caps are often used to protect the ends of the rectangular steel tubes from damage during transportation. The caps are typically made from durable plastic material and are designed to fit snugly over the ends of the tubes.
3. Waterproof Paper: Rectangular steel tubes are often wrapped in waterproof paper to protect them from moisture and rust during transportation. The paper is typically made from high-quality kraft paper and may be coated with wax or a water-resistant material.
4. Wooden Crates: In some cases, rectangular steel tubes may be shipped in wooden crates for added protection during transportation. The crates are usually designed to fit the bundled tubes and may be reinforced with steel straps or wire ties for added strength.
5. Shipping Labels: Rectangular steel tubes are typically labeled with shipping information, such as the product name, dimensions, weight, and destination. This information helps to ensure that the tubes are delivered to the correct location and that they are handled properly during transportation.
The standard packing for rectangular steel tubes made from E235 is designed to protect the tubes from damage during transportation and to ensure that they arrive at their destination in good condition. It is important to consult the manufacturer's specifications for the specific product being used to ensure that it meets the required packing standards.

Supplier

TAP Viet nam International Investment Joint Stock Company (TAP Viet nam) is a well-known supplier of high-quality Rectangular Steel Tube E235, EN-10305-5 in Vietnam. With years of experience in the industry, TAP Viet nam has earned a reputation as a reliable and trusted supplier of steel tubes for various applications.
The Rectangular Steel Tube E235, EN-10305-5 is a popular choice for many applications due to its excellent mechanical properties, including high tensile strength and good toughness. This steel tube is widely used in industries such as automotive, construction, and manufacturing, where strength and durability are critical factors.
At TAP Viet nam, we offer a wide range of Rectangular Steel Tube E235, EN-10305-5 in different sizes and specifications to meet the diverse needs of our customers. Our steel tubes are made from high-quality materials and are manufactured using advanced technologies to ensure consistent quality and performance.
One of the key advantages of working with TAP Viet nam is our commitment to customer service. We understand that every customer has unique requirements and we strive to provide customized solutions that meet their specific needs. Our team of experts works closely with customers to understand their requirements and recommend the best products and services to meet their needs.
In addition to high-quality products and excellent customer service, TAP Viet nam also offers competitive pricing and on-time delivery. We understand that timely delivery is critical for our customers, and we work closely with our logistics partners to ensure that products are delivered on time and in good condition.
In conclusion, if you are looking for a reliable supplier of Rectangular Steel Tube E235, EN-10305-5 in Vietnam, TAP Viet nam International Investment Joint Stock Company is the right choice. With our commitment to quality, customer service, competitive pricing, and on-time delivery, we are a trusted partner for businesses across a range of industries. Contact us today to learn more about our products and services.

Dimensions and tolerances. Square and rectangular Steel tubes EN 10305-5 EN 10305-5 is a European standard that specifies the requirements for square and rectangular steel tubes used for mechanical and general engineering purposes. The standard specifies the dimensions and tolerances for these tubes, as well as the technical delivery conditions. Dimensions: The standard specifies the following dimensions for square and rectangular steel tubes: 1. Outer dimensions: The outer dimensions of the tubes shall be measured in millimeters and shall be within the range of 10 mm x 10 mm to 200 mm x 200 mm for square tubes and 10 mm x 15 mm to 150 mm x 200 mm for rectangular tubes. 2. Wall thickness: The wall thickness of the tubes shall be measured in millimeters and shall be within the range of 0.5 mm to 8 mm. 3. Length: The length of the tubes shall be measured in meters and shall be within the range of 3 m to 12 m. Tolerances: The standard specifies the following tolerances for square and rectangular steel tubes: 1. Outer dimensions: The outer dimensions of the tubes shall be within the tolerances specified in Table 1 of the standard. The tolerances vary depending on the size of the tube. 2. Wall thickness: The wall thickness of the tubes shall be within the tolerances specified in Table 2 of the standard. The tolerances vary depending on the size of the tube. 3. Length: The length of the tubes shall be within the tolerances specified in Table 3 of the standard. The tolerances vary depending on the length of the tube. Technical delivery conditions: The standard specifies the following technical delivery conditions for square and rectangular steel tubes: 1. Steel grades: The tubes shall be made of steel grades specified in the standard. 2. Manufacturing process: The tubes shall be manufactured by either cold drawing or cold rolling. 3. Surface conditions: The tubes shall be supplied with a smooth surface finish, free from defects such as cracks, laps, and seams. 4. Straightness: The tubes shall be straight and have a maximum deviation of 1 mm per meter of length. 5. Other requirements: The standard specifies other requirements such as chemical composition, mechanical properties, and non-destructive testing that the tubes shall meet. Overall, EN 10305-5 provides a detailed specification for the dimensions, tolerances, and technical delivery conditions for square and rectangular steel tubes used in mechanical and general engineering applications.


























Side length (s)			Sizes, tolerances and mass per unit length
Dimensions in millimetres
H	B (or H)	Tolerance of H and B	1	1.25	1.5	2	2.5	3	4

15	15	±0,20	0.438	0.537	0.632	0.810
20	10 15 20	±0,20	0,438 0,516 0,595	0,537 0,635 0,733	0,632 0,750 0,868	0,810 0,967 1,12



25	15 25	±0,25	0,595 0,752	0,733 0,930	0,868 1,10	1,12 1,44
30	10 15 20 30	±0,25	0,595 0,673 0,752 0,909	0,733 0,831 0,930 1,13	0,868 0,985 1,10 1,34	1,12 1,28 1,44 1,75



							2.15	2.39
34	20	±0,25	0.815	1.01	1.20	1.56
35	20 25 35	±0,25	0,830 0,909 1,07	1,03 1,13 1,32	1,22 1,34 1,57	1,59 1,75 2,07	1,95 2,15 2,54	2,39 2,86


40	20 25 30 40	±0,30			1,34 1,46 1,57 1,81	1,75 1,91 2,07 2,38	2,15 2,34 2,54 2,93	2,39 2,63 2,86 3,33


									4.25
45	45	±0,30			2.05	2.69	3.33	3.80	4.88
50	20 25 30 40 50	±0,30			1,57 1,69 1,81 2,05 2,28	2,07 2,22 2,38 2,69 3,01	2,54 2,74 2,93 3,33 3,72	2,86 3,10 3,33 3,80 4,28

									4,25
									4,88
									5,51
60	20 30 40 50 60	±0,35				2,38 2,69 3,01 3,32 3,64	2,93 3,33 3,72 4,11 4,50	3,33 3,80 4,28 4,75 5,22	4,88 5,51 6,14 6,76




70	40 70	±0,40				3,32 4,26	4,11 5,29	4,75 6,16	6,14 8,02

80	20 30 40 50 60 80	±0,50				3,01 3,32 3,64 3,95 4,26 4,89	3,72 4,11 4,50 4,90 5,29 6,07	4,28 4,75 5,22 5,69 6,16 7,10	6,76 7,39 8,02 9,28





90	90	±0,60				5.52	6.86	8.04	10.5
100	40 50 60 80 100	±0,65				4,26 4,58 4,89 5,52 6,15	5,29 5,68 6,07 6,86 7,64	6,16 6,63 7,10 8,04 8,99	8,02 8,65 9,28 10,5 11,8




120	40 60	±0,70				4,89 5,52	6,07 6,86	7,10 8,04	9,28 10,5

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