ER347
Alloy Type: A5.9, STAINLESS STEEL Bare, Cored and Stranded Electrodes
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 Class: ER347 | Certification: AWS A5.9/ A5.9M:2006 |
| Alloy: ER347 | AWS/ASME SFA A5.9 |
| Welding Position:
F, V, OH, H |
Current:
MIG-DCEP TIG-DCEN |
Typical Properties (as welded)
| Yield, kpsi: | 57 |
| Tensile Strength, kpsi: | 86 |
| Elongation%, min: | 35 |
Typical Wire Chemistry as per AWS A5.9 (single values are maximum)
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu | Element | Amount |
| 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 | Nb | 10XC min/1.0 max |
| Typical Welding Parameters | |||||
| Diameter | Process | Volt |
Amps |
GAS | |
| in | (mm) | ||||
| .035 | (0.9) | GMAW | 22-23 | 180-210 | Spray Transfer 98% Argon/2% Oxygen |
| .045 | (1.14) | GMAW | 23-25 | 195-260 | Spray Transfer 98% Argon/2% Oxygen |
| 1/16” | (1.6) | GMAW | 25-28 | 260-390 | Spray Transfer 98% Argon/2% Oxygen |
| Diameter | Process | Volt |
Amps |
GAS | |
| in | (mm) | ||||
| 1/16” | (1.6) | GTAW | 14-18 | 90-130 | 100% Argon |
| 3/32” | (2.4) | GTAW | 15-20 | 120-175 | 100% Argon |
| 1/8” | (3.2) | GTAW | 15-20 | 150-220 | 100% Argon |