Please tell me about the welding of chromium-molybdenum alloy steel and stainless steel

2008-02-28View Original

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What is the welding process of chromium-molybdenum alloy steel and stainless steel? For example, 304 and 12CrMo, do they need preheating before welding and heat treatment after welding? Thank you

Reply #22008-02-29

Please refer to sh/T3520-2004 "Petrochemical Industry Chromium-Molybdenum Heat-Resistant Steel Welding Regulations":)

Reply #32008-02-29

When design conditions do not require it, preheating and heat treatment are not required for 304 and 12CrMo using A307 or nickel-based electrodes. Welding process qualification needs to be done before welding.

Reply #42008-02-29

Preheating before welding and stress elimination heat treatment after welding should be carried out! Welding materials should use 182 welding rod!

Reply #52008-03-02

The welding material is Ni182 electrode, which is NiCrFe-3

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Please tell me about the welding of chromium-molybdenum alloy steel and stainless steel

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