Stainless Steel ER 317L

Technical Data Sheet


Chemical Composition Limits
Weight% C Mn Si Cr Ni S P Mo Cu
ER 317L 0.03 max 1.0-2.5 0.30-0.65 18.5-20.5 13-15 0.03 max 0.03 max 3-4 0.75 max

Alloy ER 317L is used for welding stainless steels with similar composition. This alloy offers high resistance to pitting and crevice corrosion because of its high molybdenum content. The lower carbon content of the ER317L makes the weld metal less susceptible to intergranular corrosion.

Typical Mechanical Properties

Material Ultimate Tensile Strength Offset Yield Strength 0.2 % Elongation (%)
psi MPa psi MPa
ER 317L 82,650 570 59,450 410 42

Alloy ER 317L is a Stainless Steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

AWS 5.9
UNS S31783

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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.