hat
409 Nerjaveèi asye dwe pre-chofe a tanperati ki nan 150 260 ° C anvan yo soude. Swen yo dwe pran pouwde klas 409 asye ak chalè minimòm, pou yo bese kwasans grenn.Kapitalite nan pwodwi yo soude ka amelyore pa ralantisman pòs-soude nan tanperati nan 760 a 815 ° C.
eng
409 stainless steels must be pre-heated to temperatures of 150 to 260°C before welding. Care should be taken to weld grade 409 steels with minimum heat, in order to mitigate grain growth.Ductility of the welded products can be improved by annealing post-welding at temperatures of 760 to 815°C.