What are the standards for ERW steel pipes?

Posted by BAOWI STEEL MANUFACTURING CO.,LTD on April 15th, 2024

ERW steel pipe is a common steel pipe product, and its implementation standards mainly include national standards and industry standards. The following are some common ERW steel pipe execution standards:

1. Industry standards:

SY/T 5040-2000 "Technical Conditions for Welded Steel Pipes for Steel Pipe Transmission Lines in Petroleum and Natural Gas Industries": Suitable for welded steel pipes for transmission pipelines in petroleum and natural gas projects.

SY/T 5037-2012 "Spiral submerged arc welded steel pipes for oil, natural gas and steam transportation": Spiral submerged arc welded steel pipes suitable for oil, natural gas and steam transportation.

2.International standards:

ASTM A53/A53M-20 "Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless": Suitable for welded and seamless carbon steel pipes for general purposes.

European standard:

EN 10219-1/2 "Cold formed welded structural hollow sections of non-alloy and fine grain steels": Suitable for cold formed welded non-alloy and fine grain steel structural hollow sections.

3. Production standard content:

Material requirements: including steel type selection, chemical composition, mechanical properties and other requirements.

Dimensional requirements: including requirements for dimensional parameters such as outer diameter, wall thickness, length, etc.

Process requirements: including tube blank preparation, welding process, cold drawing forming, heat treatment and other process requirements.

Quality control: including chemical composition testing, outer diameter, wall thickness control, weld quality testing, surface quality requirements, etc.

Testing requirements: including welding seam testing, appearance inspection, mechanical property testing, etc.

4. Production process:

Tube blank preparation: Select appropriate steel blanks for pretreatment processes such as cutting and cleaning.

Roll forming: The tube blank is formed using a rolling process to form a round or square tube shape.

Resistance welding: The resistance welding process is used to heat the edge of the tube blank to the melting point, and then apply pressure to form a weld.

Welding seam treatment: Welding seams are trimmed and descaled to improve welding seam quality.

Cold drawing: The welded pipe is stretched and formed through the cold drawing process to adjust the size and wall thickness.

Heat treatment: For pipes made of different materials, heat treatment processes can be performed to improve the mechanical properties and corrosion resistance of the materials.

These standards cover the requirements and technical conditions for the material, size, quality control, production process, etc. of straight seam electric resistance welded steel pipes to ensure that the steel pipes produced meet relevant quality standards and can be safely and reliably used in various engineering fields. When purchasing straight seam resistance welded steel pipes, you can refer to the corresponding implementation standards to make your selection to ensure that the selected products meet the requirements.

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