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HFW Steel Pipe（High-Frequency Welded Steel Pipe）is a premium type of ERW (Electric Resistance Welded) pipe, is manufactured by forming hot-rolled/cold-rolled steel strips into a tubular shape and welding the longitudinal seam via high-frequency current’s proximity effects. The process heats strip edges to 1,300–1,500°C instantly for metallurgical bonding under pressure, without filler metal. It features a narrow heat-affected zone, uniform weld, and cost-effectiveness, serving as a mainstream product for fluid transport and structural engineering.
Item | Specification |
Outer Diameter | Φ114 mm–φ610 mm (1/2"–24") |
Wall Thickness | 3 mm–16 mm |
Length | 6 m–18 m (custom 1 m–12 m) |
Material Grades | GRADE B,X42–X70,S275-S460,L245-L485 |
Standards | API 5L,API 5CT,ASTM A53,AS/NZS 1163,EN10219,EN10210,EN10217,ISO 3183 |
Coating Options | Bare, black paint, galvanized, FBE,3PE,3PP |
Pressure Rating | Medium–high pressure (≤10 MPa, customizable) |
· Superior Weld Quality: Narrow heat-affected zone, fine grain structure, and consistent mechanical properties.
· Cost-Effectiveness: 20–30% lower cost than seamless pipes; high production efficiency reduces lead times.
· Wide Application Range: Suitable for both medium–low and high-pressure scenarios (e.g., oil/gas transmission).
· Easy Processing: Smooth surface enables easy cutting, bending, and welding; customizable lengths/coatings.
· Reliable Performance: Strict quality control (tensile, impact, hydrostatic testing) ensures long-term stability.
Oil & Gas Industry: Oil or gas gathering and transmission pipelines, oilfield water injection, and branch lines.
Fluid Transport: Municipal water supply/drainage, natural gas, chemical media, and mine tailings transport.
Structural Engineering: Building steel structures, bridges, factory columns, piling pipes, and scaffolding.
Energy & Power: Power plant circulating water, thermal power pipelines, and renewable energy infrastructure.
Mechanical Manufacturing: Mechanical parts, bearing seats, brackets, and drive shafts.
Other Fields: Agricultural irrigation, automotive components, and shipbuilding.
