Welding 321 Stainless Steel. ER321 Stainless Steel Welding Wire. Also mentioned In Job Knowledge 103 was that the austenitic stainless steels are metallurgically simple alloys and room temperature mechanical properties are not significantly affected by variations in the welding procedure.
All welding on 321 is with 347 wireelectrodes due to metallurgical concerns. Welding 321 stainless. Sometimes 321 is chosen for its strength characteristics in which case 308 weld metal would match the strength-the same mechanical decision as with using 308 for 316 and sometimes because it is stabilized in which case 347 would be the choice.
304 has similar corrosion resistance qualities to 321 but 321 has superior mechanical properties at elevated temperatures compared to 304.
SS321 AISI 321 Stainless Steel 321H TP321. Also mentioned In Job Knowledge 103 was that the austenitic stainless steels are metallurgically simple alloys and room temperature mechanical properties are not significantly affected by variations in the welding procedure. Fabrication Data Alloy 321 can be easily welded and processed by standard shop fabrication practices. 321 should be welded using 347 filler wire.