ERW (Electric Resistance Welded) pipe is produced by high-frequency electric resistance welding of hot-rolled steel strips or coils. It has a smooth weld line, precise dimensions, high pressure resistance and good straightness.
It is widely used in fluid transportation, structural engineering, water supply & drainage, gas pipelines, piling, scaffolding and general industrial piping, especially for large-volume, cost-effective projects.
Main Specifications & Standards
1. Standards
- API 5L (PSL1 / PSL2)
- ASTM A53 (Grade A / B)
- ASTM A252 (Piling pipe)
- EN 10217
- BS 1387
2. Size Range
- Outer Diameter: 1/2" ~ 24" (DN15 ~ DN600)
- Wall Thickness: SCH 40 / SCH 80 / STD / XS
- Length: 5.8m, 6m, 11.8m, 12m or customized
3. Steel Grades
- Carbon Steel: Q235B, Q355B, Gr.B, X42, X46, X52, X60
- Galvanized ERW Pipe available
4. Surface
- Black painting / Varnish
- Anti-rust oil
- Hot-dip galvanized
- 3LPE coating (for oil & gas line)
5. End Treatment
- Plain end
- Beveled end
- Threaded + coupling
EN
