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Stainless Steel ER 312


Technical Data Sheet

 

Chemical Composition Limits
Weight% C Mn Si Cr Ni S P Mo Cu
ER 312 0.15 max 1.0-2.5 0.30-0.65 28-32 8-10.5 0.03 max 0.03 max 0.75 max 0.75 max

Alloy ER 312 was originally designed to weld cast alloys of similar composition. This filler metal has also been found to be valuable in welding dissimilar metals such as carbon steel to stainless steel, particularly those grades high in nickel. ER 312 gives a two-phase weld deposit with substantial percentages of ferrite in an austenite matrix. Even with considerable dilution by austenite-forming elements such as nickel, the microstructure remains two-phase and thus highly resistant to weld metal cracks and fissures.

Typical Mechanical Properties

Material Ultimate Tensile Strength Offset Yield Strength 0.2 % Elongation (%)
psi MPa psi MPa
ER 312 102,950 710 85,550 590 40


Availability
Alloy ER 312 is a Stainless Steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

Specifications
AWS 5.9
ASME SFA 5.9
AWS ER 312
UNS S31380

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Disclaimer
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.