Low-Alloy Electric Resistance Welded (ERW) Steel Pipes

ERW steel pipes are produced by cold forming steel sheet or strip (skelp) followed by longitudinal seam welding.

Key Standards:

GOST 10704-91: Specifies the range of dimensions (size range) for straight-seam ERW steel pipes. It covers outer diameters from 10 to 1420 mm and wall thicknesses from 1 to 32 mm. This is the core dimensional standard for ERW pipes.
GOST 10705-80: Applies to general-purpose straight-seam ERW pipes with outer diameters ranging from 10 to 530 mm. It establishes technical delivery conditions, including mechanical properties and test methods.
GOST 10706-76: Applies to general-purpose straight-seam ERW pipes with outer diameters ranging from 478 to 1420 mm. It specifies technical requirements for large-diameter pipes commonly used in main pipelines.
GOST 20295-85: Covers steel pipes for main gas and oil pipelines (frequently electric welded).

Low-Alloy Round ERW Steel Pipes
Our low-alloy round ERW steel pipes are manufactured from high-strength low-alloy (HSLA) steel grades utilizing state-of-the-art electric welding technologies to ensure high structural integrity, extended service life, and corrosion resistance. These pipes are suited for demanding industrial applications across construction, mechanical engineering, chemical processing, and the oil & gas sector. The low-alloy steel composition provides enhanced yield strength, toughness, and wear resistance under severe operating conditions.

Key Advantages:

High Mechanical Strength: Low-alloy steel grades deliver high tensile and yield strength, enabling pipes to withstand elevated operational loads.
Corrosion Resistance: Advanced surface processing techniques protect the pipes against harsh corrosive environments, extending service life.
Extensive Size Range: Available in a comprehensive range of outer diameters and wall thicknesses to satisfy specific engineering requirements.
High-Integrity Welded Seams: Advanced electric welding process guarantees high joint strength and pressure-tight seam integrity.
Versatile Application: Suitable for water supply, heating systems, gas distribution pipelines, and load-bearing structural frameworks.