ASTM A358-CL1 TP316/TP316L Electric-Fusion-Welded Stainless Steel Pipe with Strong Corrosion Resistance

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ASTM A358-CL1 TP316/TP316L Electric-Fusion-Welded Stainless Steel Pipe with Strong Corrosion Resistance

The Process: EFW (Electric Fusion Welding)

• EFW is a welding process where the pipe is formed from a flat plate (skelp) and then welded longitudinally.
• How it works: The plate edges are prepared, brought together, and fused using an electric arc. Filler metal is typically added.
• Comparison to ERW: While often used interchangeably, EFW typically refers to welding with filler metal (consumables), whereas ERW (Electric Resistance Welding) usually does not use filler metal and relies on pressure and resistance heat. EFW is preferred for thicker walls and critical services.

Key Adventages

• 100% Radiographic Examination of Weld – Superior Weld Quality
• Electric-Fusion Welding – Ideal for Large Diameter, Thin or Thick Wall Pipe
• Excellent Corrosion Resistance – Suitable for Aggressive Media
• Wide Temperature Range – From Cryogenic to Elevated Temperatures

Key Applications

• Chemical and petrochemical industries: Chemical processing plants, refineries, and petrochemical facilities.
• Oil and gas industries: Used for transporting fluids such as crude oil, natural gas, and refined petroleum products.
• Power generation industries: Used in boiler piping, heat exchangers, and condensers.