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ER312


Alloy Type:

ER312 stainless steel wire is used for welding cast alloys of similar composition as well as dissimilar metals including stainless to mild steels.  It can also be used for welding high strength steels.  This alloy has very high ferrite.

 

AWS Class: ER312 Certification:  AWS A5.9/ A5.9M:2006
Alloy:  ER312 AWS/ASME SFA A5.9

 

Welding Position:

F, V, OH, H

Current:

MIG-DCEP

TIG-DCEN

 

Typical Properties (as welded)

Yield, kpsi: 78
Tensile Strength, kpsi: 109
Elongation%, min: 25

 

 

 

 

 

Typical Wire Chemistry as per AWS A5.9 (single values are maximum)

C Cr Ni Mo Mn Si P S Cu
0.15 28.0-32.0 8.0-10.5 0.75 1.0-2.5 0.30-0.65 0.03 0.03 0.75

 

 

Typical Welding Parameters
Diameter Process Volt Amps
in (mm)
.023 (0.6) GMAW 14-19 30-85
.030 (0.8) GMAW 15-20 45-125
.035 (0.9) GMAW 16-22 60-150
.045 (1.14) GMAW 17-22 90-210
1/16” (1.6) GTAW 12 80-150
3/32” (2.4) GTAW 12 150-250
1/8” (3.2) GTAW 12 200-375

 

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