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Data Sheet:

ER 312

Alloy ER 312

Weight % C Mn Si Cr Ni S P Mo Cu

ER 312

0.15

max

1.00- 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.

    

AVAILABILITY

Alloy ER 312 is a stainless steel TIG, MIG and SUB-ARC wire used for welding

    

SPECIFICATIONS

AWS 5.9

ASME SFA 5.9

AWS ER312

UNS S31380

    

TYPICAL MECHANICAL PROPERTIES

Material Ultimate Tensile Strength (psi) 0.2% Offset Yield Strength (psi)

Elongation  (%)

ER 312 102,950 (710 MPa) 85,550 (590 MPa) 40

  

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.

   

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