ER309L is very similar to type ER309 but has a carbon content held to a max of .03% to avoid carbide precipitation and preserve intergranular corrosion resistant properties. 308L has mild corrosion resistance properties.

APPLICATIONS

XTR 309L is low carbon 25 Cr/ 12 Ni stainless steel solid wire similar in composition to ER 309L. Suitable for welding of austenitic stainless such as AISI 309, some martensitic grades like 410, 420 and 431, and ferritic grades like 430, 442, and 446; all with the ability to be welded to mild steels, carbon steels and each other. It is also used to weld dissimilar steels and for buffer layers and buttering 18 Cr/ 8 Ni steels.