I am assisting a company with the development of welding procedures and qualifications for the joining of 409 stainless steel. The component is automotive exhaust systems(pipe, tube, flange welding). I have the AWS D8.8-97 "Specification for Automotive and Light Truck Components Weld Quality- Arc Welding". This is for automotive and truck frame welding. Other than the AWS sheet metal codes or specifications, does any one have an idea or application similar, and how have you qualified and to what standard, acceptance criteria, etc.
Thanks,
John Folk