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How to choose between 308L, 309L or 316L filler metal for dissimilar welding?

How to choose between  L,L orL filler metal for dissimilar welding?

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Question added by Remson Sylvester Madtha , Quality Engineer/ Inspection Engineer , Bureau Veritas
Date Posted: 2016/08/14
YAGYANARAYAN DWIVEDI
by YAGYANARAYAN DWIVEDI , Production Supervisor , NEW BHARAT ENGENNERING WORKS

WE CAN CHOSE AS PER SPACIFICATION

Ariful Islam
by Ariful Islam , Jr. Engineer , Confidence Electric Ltd.

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.

Prakash Kumar Bontra
by Prakash Kumar Bontra , Senior Mechanical Inspector , Al Hugayet Est. (Sadara Chemical Co & SATORP project)

309L electrode is normally suitable for dissimilar weld joints.

 

valson funelas
by valson funelas , Maintenance Equipment Technician , LODIGE INDUSTRIES

Stainless steel 316L for joining 308L 309L base Metal.

Mohammed Iqbal hussain
by Mohammed Iqbal hussain , Third party inspector , Allianze International India Training Centre

309L for dissimilar metals like mild or low alloy to SS 

mohamed belmahi
by mohamed belmahi , technicien , SABDELEC.

 le plus approprié pour la majorité des applications c'est le métal 308L

Chris Sabu
by Chris Sabu , Welding Inspector,QA/QC , Al fara'a Group

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.

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