Can ERNiCr-3 welding wire be used for welding 15CrMo pipe fittings?
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For the welding of 15CrMo pipe fittings, can ERNiCr-3 wire be used? Is heat treatment required after welding? Some processes do not involve preheating or heat treatment – what are the standard requirements?
ER55-B2, or TIG-R30; refer to NB/T47014-2011 – preheating before welding and post-weld heat treatment are required. Won’t using ERNiCr-3 welding wire be too expensive? Is it what’s left after welding 600 or 800, something like that?
Yes, there is one more box of this welding wire left.
Use whatever welding material is appropriate; it’s not expensive. The question is ============== Is there any corresponding welding procedure qualification to support this approach? Does the welder who performs this welding have the appropriate qualifications? Is there a corresponding welding procedure card?