AWS A5.9 : ER309LSiR
EN ISO 14343-A : G 19 9 LSi
JIS Z3321 : YS309LSiR


A 309L type austenitic stainless steel with modified higher silicon level to increase puddle fluidity ensuring better tie-ins and potentially higher welding speed. Typical applications include welding of AISI 304L, 316L in chemical, oil and gas refineries and welding of dissimilar base metals of stainless and carbon steels.

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