Product Overview
ERW (Electric Resistance Welded) black round steel pipes are manufactured using high-frequency resistance welding technology. Made from hot-rolled or cold-rolled steel strips through forming, welding, and sizing processes, our products strictly comply with API 5L, ASTM A53, and other international standards, and are widely used in long-distance oil and natural gas pipelines as well as petrochemical oil storage and transportation systems.
Core Advantages
Superior Weld Quality
High-frequency resistance welding ensures excellent weld strength, density, and consistency. Tensile strength, elongation, and bending performance fully meet API and ASTM specification requirements.
High Reliability & Safety
ERW steel pipe technology has matured. Theory and practice have proven its reliability and safety. Domestic product oil pipeline projects (e.g., Zhenhai Refining & Chemical to Xiaoshan Oil Depot pipeline, 153 km in length) have successfully applied ERW steel pipes with excellent performance records.
Significant Cost Efficiency
Compared with seamless steel pipes, ERW steel pipes offer higher dimensional accuracy, uniform wall thickness, and competitive pricing.
Reliable Low-Temperature Performance
Testing shows that high-quality ERW weld fracture appearance transition temperature (FATT) can reach as low as -80°C to -95°C (SA50%), meeting the demands of pipeline construction in cold regions.
Applications
- Long-Distance Oil & Gas Pipelines: Suitable for onshore and offshore long-distance oil and gas transmission lines, with working pressure up to 6.4 MPa and above, conveying crude oil, product oil, natural gas, and other media.
- Petrochemical Oil Storage & Transportation Systems: Widely used in refining and chemical enterprises' oil storage and transportation facilities-an ideal alternative to seamless steel pipes.
- Industrial Fluid Conveyance: Suitable for industrial fluid conveyance networks in chemical, power, boiler, and hydraulic systems.
Why Choose Us?
- Certifications: API, ISO9001, CE certified-quality assured
- Ample Capacity: Monthly supply capacity exceeding 10,000 tons, with reliable delivery timelines
- Full Service: One-stop solutions from material selection and custom processing to logistics and delivery
- Field-Proven: Successfully applied in multiple key domestic oil pipeline projects, with cumulative supply exceeding 10,000 tons
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