Welding of Hastelloy C276 and stainless steel S30408
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When welding Hastelloy C276 to stainless steel S30408, can ENiCrMo-4 welding rods be used directly? For the composite plate 304+C-276, and in terms of the electrodes used for surfacing the transition layer and the coating layer, can the welding parameters be based on those for austenitic stainless steels?
Hastelloy C276 and stainless steel S30408 can be welded using ENiCRMo-4 electrodes; these electrodes are suitable for welding corrosion-resistant alloys together. For the welding of the composite plate 304+C-276, ENiCrMo-4 electrodes can also be used for the surfacing of the transition layer and the cladding layer. The welding parameters can use those for austenitic stainless steel as a starting point, but adjustments may be necessary depending on the specific welding results; in particular, the differences in the material’s thermal conductivity and coefficient of thermal expansion can affect the welding process. It is recommended to conduct a trial weld using a sample and adjust the parameters based on the actual results. .