Possible Code Case for N04400 Welded Pipe

[innovation2]

I have several heat exchangers that we are fabricating from N04400 materials. I am wondering if there is a code case availalbe for ASME Section VIII Div. 1 that would allow us to order welded pipe. Section II only lists the seamless.

Thanks for your help.

 

[89619064]

I think N04400 you mentioned is a nickel-copper alloy (about 67% Ni-23% Cu) with high strength and excellent corrosion resistance in a range of media including sea water,hyddrofluoric acid, sulfuric acid and alkalies, yes ?