Monday, September 20, 2010

[MW:7106] ASTM A790 pipe production

Dear All,
 
I have reviewed ASTM A 790, 2004 edition.

Clause no 6.1.1 states that "The pipe shall be made by seamless or an automatic welding process, with no addition of filler metal in the welding operation".

What welding process normally using to produce this type of pipes?

Why ASTM not interested in welding with addition of filler wire to produce these pipes; at the same time we are using welding technique with addition of filler wire to join these category pipes at our workshop !!!
 
Regards,
 
Limesh

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