Hi,
we have to performed a welding procedure qualification with 304L, according to ASME III Division 1 and IX.Is it possible for the WPQR to use ASTM or European material for the sample and base metal, if its an equivalent to the same P Number according to ASME QW422? ( use ASTM Gr304L as base metal for qualifie ASME Gr304L to be welded in production)
Thank you for your help.

Hi,
we have to performed a welding procedure qualification with 304L, according to ASME III Division 1 and IX.Is it possible for the WPQR to use ASTM or European material for the sample and base metal, if its an equivalent to the same P Number according to ASME QW422? ( use ASTM Gr304L as base metal for qualifie ASME Gr304L to be welded in production)
Thank you for your help.



You are correct as long as it is equivalent to the same P number and grouping but I caution you that you have to established the ASTM material is equivalent to the SA material for Code Edition and Addenda.

leem