ERW Pipe is the abbreviation for Electric Resistance Welded Pipe, which refers to a steel pipe with a longitudinal seam formed and welded from hot-rolled coils using high-frequency electric current.
Core Features
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Low Cost: Cheaper than seamless steel pipes and highly efficient to produce.
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High Precision: Good dimensional control and uniform wall thickness.
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Reliable Weld: Modern high-frequency welding technology ensures weld strength close to that of the base metal.
Common Standards & Grades
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API 5L: Line pipe (GR.B, X42, X52, X60)
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GB/T 3091: Fluid conveyance pipe (Q235B, Q355B)
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ASTM A53: Structural/low-pressure fluid pipe
Main Applications
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Oil/Gas & Fluid Transport: Oil, natural gas, water, gas pipelines
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Structural Engineering: Building steel structures, scaffolding, tower crane supports
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Piling Engineering: Building foundations, dock piling
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General Industry: Mechanical structural parts, greenhouses, wire conduits
| Welded pipe | |||
| Grade(EN): | 1.7220、1.7336、1.2601、1.7380、1.7335、1.0033、1.0116 etc. | ||
| Material: | A36、A53、A106、A192、ST52、Q355、A210、T12、T11、P5、P9、P91、T22、A333、4140、5135 etc. | ||
| Diameter: | 8mm-1220mm | Process: | Argon arc welding、Submerged arc welding、High frequency welding |
| Thick: | 1mm-150mm | Length: | 3000-1400mm or Customized |
| Standard: | ASTM AISI DIN JIS GB EN | Certification: | ISO, SGS,BV |





