HFW / HFI welded pipe differences 1

[GabrieleB]

Is there any difference with the 2 welding processes HFW (High Frequency Welding) and HFI (high frequency induction)for longitudinal welded pipe? Could I consider the same kind of process?

 

[SJones]

There is no differentiation in API Spec 5L/ISO 3183. HFW is HFW whether it be ERW or HFI.

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[GabrieleB]

So as I understood HFW is the family of processes. In that family I can consider Electrical Resistance Welding (ERW) and High Frequence Induction Welding (HFI) that is a different technique of the same techology (HFW). Is that correct?

 

[SJones]

Correct

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[GabrieleB]

Tanks for the clarification