hat
309S se yon variant de 309 en fe ak ti kabòn kontan. Li te sèvi pou okazyon kote soudi bezwen. Ti kabòn kontni réduit précipitations carbure nan HAZ tou pwe soude a, ki ka mennen a est kowozyon (soudi kowozyon) ki fe en nan kèk environnements.
eng
309S is a variant of 309 stainless steel with low carbon content. It is used for occasions where welding is needed. Low carbon content minimizes carbide precipitation in the HAZ near the weld, which may lead to intergranular corrosion (welding corrosion) of stainless steel in some environments.