Specifications:
AWS A5.9
AWS ER308/ ER308L
ASME SFA 5.9
UNS S/ S
Description:
ER308L contains low carbon material that reduces the possibility of intergranular carbide precipitation. This increases the resistance to intergranular corrosion without the use of stabilizers such as niobium or titanium. ER308L wire is designed for welding and overlay of base metals similar in composition, such as 304L. 308L is well suited for applications in the chemical and petrochemical industries, distilleries, dairy, and restaurant equipment; and in applications where a good atmospheric corrosion resistance is needed.
Yield Strength: 57,000 psi
Tensile Strength: 85,000 psi
Elongation: 40%
Available in multiple sizes and diameters.
Chemical Composition (Wt%):
SiMnCuMoSNiCrPC
0.30-0.651.0-2.50.750.750.039.0-11.019.5-22.00.030.03
Note: Single values are maximum unless otherwise noted.
View/Download Data Sheet
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ER308L (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.
ER316L (including ER316LSi) filler metal should be used with ER316L and ER316 base metals. CF-8M and CF-3M are the cast equivalents of 316 and 316L, respectively.
Use ER309L (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 ER304L stainless, as well as for joining 309 base metal. CG-12 is the cast equivalent of 309. Some ER308L applications may be substituted with ER309L filler metal, but ER316L or ER316 applications generally require molybdenum and 309L contains no molybdenum.
Type ER347 stainless steel filler metal is ideal for ER347 and ER321 base materials because it matches these stabilized grades. CF-8C is the cast equivalent of ER347. Type ER347 filler metal is also suitable most ER308L filler metal applications.
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