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Stainless Steel Electrode
ER347 is a stainless steel welding wire used in joining types 321 and 347 grades of stainless. The addition of columbium to this alloy reduces the possibility of chromium carbide precipitation and consequent intergranular corrosion.
AWS Specification : AWS A5.9/A5.9M:2006
| AWS Classification | ER347 |
| Welding Current | DCEP |
| Typical wire chemistry | |||||||||
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu | Nb |
| 0.08 | 19.0 - 21.5 | 9.0 - 11.0 | 0.75 | 1.0 - 2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 | 10xCmin/1.0max |
| Typical Mechanical Properties (As Welded) | |
| Yield Strength, ksi | 57 |
| Tensile Strength, ksi | 86 |
| Elongation%, min | 35 |
| Welding Positions | F,V,OH,H |
| Available Diameters MIG with Operating Range in Amps | |
| .023" | 35 - 70 |
| .030" | 50 - 100 |
| .035" | 160 - 210 |
| .045" | 180 - 250 |
| Available Diameters TIG with Operating Range in Amps | |
| .035" | 60 - 90 |
| .045" | 80 - 110 |
| 1/16" | 90 - 130 |
| 3/32" | 120 - 175 |
| 1/8" | 150 - 220 |
| 5/32" | 170 - 350 |
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