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Mr168, I don't know if I can be of any help, one thing to say is I don't know AWS D14.4, but I do know S9074-AQ-GIB-010/248 Welding Procedure Qualification Requirements. Which is all related in some way. I'll assume G1 is a Grouping of base material? Typically welding different grouping would...

Ok to start off, Who knows Tech Spec NAVSEA S9074-AQ-GIB-010/248 titled Requirements for welding and brazing procedure and performance qualification. Second, I need to qualify a Hardfacing of Group S-42 Nickel-copper with a Inconel underlay. The part to be welded is essentially pipe shaped and...

Ok to start off, Who knows Tech Spec NAVSEA S9074-AQ-GIB-010/248 titled Requirements for welding and brazing procedure and performance qualification. Second, I need to qualify a Hardfacing of Group S-42 Nickel-copper with a Inconel underlay. The part to be welded is essentially pipe shaped and...

later on I'll attach the dwg.

It seems the nitriding process is hardening all over even when other areas are stopped off, thus the material could not be threaded or machined.

I need some help in the procedural process method of carburizing 400 series stainless steel material. Material is purchased in the annealed condition. Roughed out, heat treated to condition "T" or "H" as applicable per drawing requirements, machined to drawing details, carburized at shoulder...

Some helpful info on NS threads. Since I'm in the nuclear manufacturing end of this business, I have some info to share. Reference Specifications: ANSI B1.1-1989 Unified Inch Screw Threads (UN and UNR Thread Form) FED-STD-H28A Notice 1 dated 09/10/01 Screw-Thread Standards for Federal...