Choosing SS electrodes...

Post by **kamran** » 22 Oct 2010, 12:50

Stainless Steel by Lincoln's Stainless Expert, Damian Kotecki

When should I use 308L, 309L or 316L filler metal?

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.

Type 347 stainless steel filler metal is ideal for 347 and 321 base materials because it matches these stabilized grades. CF-8C is the cast equivalent of 347. Type 347 filler metal is also suitable most 308L filler metal applications.

1772 · Post by **1772** » 26 Oct 2010, 22:16

We produce pressure vessels, predominately flash tanks, liquor flash, & condensate receiver tanks, made of SA316 TP304L matl and welded with 308L wire & FCAW process.

arcpro · Post by **arcpro** » 27 Oct 2010, 08:18

What is SA316?

Cessare25 · Post by **Cessare25** » 14 Nov 2010, 15:19

SA316 Its an AISI 316 classification of SS.
Recomendation always is use the diagrams. Schaeffer, WRC or DeLong. Actually I'm welding an SS Super Duplex ZERON100 with an electrode E2209. I hope I can get some good wleds

mechcolor · Post by **mechcolor** » 14 Nov 2010, 17:30

The perfectly suited and commonly used electrodes for welding of ZERON100 are E-2595 AWS 5.4.

1772 · Post by **1772** » 18 Nov 2010, 19:39

Whoops, instead of SA316 I meant SA312 TP304L material.

Under ASME Sec II, the SA number represent the Specification & Analysis as with SA312 meaning Specification for Seamless and Welded Austenitic Stainless Steel Pipes and TP304L is the grade.

Sorry for the confusion.

Robert P.

thePetroStreet