SÜA - E309L-16 - Stainless Steel Welding Electrode - 14" x 1/8" - (0.5 Lb). All position welding of heat resistant 22-25% chromium and 12-13% nickel stainless steels such as 309/309L to itself, to other austenitic Cr-Ni grades such as 304L, 308L, 310, 316L, 321 or 347 as well as martensitic grades 410, 420, 431, and ferritic stainless grades such as 430, 442, and 446; all of these stainless steel grades can be welded to each other or to mild and carbon steels.