EFW Welded Pipe

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EFW steel pipe is the abbreviation of electric fusion welding.

One of submerged arc welding (SAW)-electric welding (EFW) is a process in which metal is heated by one or several consumable electrodes and a work piece to heat the metal, and the arc is used to make the metal and fill. The material is fully melted and does not require pressurization. The part of the filling metal is all from the electrode. Melt Gas Shielded Welding (GMAW)–A type of electrofusion welding (EFW) that is similar to submerged arc welding, but its protection comes from inert gases and works better.

Material Grades for EFW Electric Fusion Welded Pipe
All EFW Electric Fusion Welded Pipe is available in the following material grades:

Carbon Steel:A106 Gr.B,A106 Gr.C,API 5LB
Stainless Steel: A312 304/L,310,316/L,321/H,347/H,410,440,904L
Low Temperature:ASTM A333Gr.6/3
Alloy Steel:A335 P1, P5, P9, P11, P12, P22, P91
High Yield:API 5L X42, 52, 60, 65, 70
6% Moly / Duplex & Super Duplex:UNS S31254,UNS S31803, S32205,UNS S32760, S32750, S32507
Nickel Alloys: 200, 400, K500, 600, 625, 800, 825
Alloys:ALLOY 20,ALLOY C,ALLOY C276,ALLOY B2
Aluminium: 5083, 5154, 5251, 6061, 6063, 6082