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How to choose between L,L orL filler metal for dissimilar welding?
WE CAN CHOSE AS PER SPACIFICATION
308L (including ER308LSi) is predominately used on austenitic stainless steels, such as types 301, 302, 304, 305 and cast alloys CF-8 and CF-3. For high temperature applications such as in the electrical power industry, the high carbon 308H electrode provides better creep resistance than does 308L.
316L (including ER316LSi) filler metal should be used with 316L and 316 base metals. CF-8M and CF-3M are the cast equivalents of 316 and 316L, respectively.
Use 309L (including ER309LSi) when joining mild steel or low alloy steel to stainless steels, for joining dissimilar stainless steels such as 409 to itself or to 304L stainless, as well as for joining 309 base metal. CG-12 is the cast equivalent of 309. Some 308L applications may be substituted with 309L filler metal, but 316L or 316 applications generally require molybdenum and 309L contains no molybdenum.
309L electrode is normally suitable for dissimilar weld joints.
Stainless steel 316L for joining 308L 309L base Metal.
309L for dissimilar metals like mild or low alloy to SS
le plus approprié pour la majorité des applications c'est le métal 308L
In short 308L is usually used in welding stainless steel materials of grade 301,302,304 grades.316L for welding stainless steel base metals of grade AISI 316 and 316L 309L is used in welding mild steel or low alloy steel to stainless steel or for joining dissimilar grades of stainless steel together.
