ER347
AWS A5.9 ER347
ASME SFA 5.9 ER347
ER347 is used for welding AISI types 304, 304L, 321 and 347 where maximum corrosion resistance is required. ER347 contains columbium which acts as a stabilizer against carbide precipitation thereby eliminating intergranular corrosion.
TYPICAL WIRE CHEMISTRY (%)
- | ER347 | AWS Spec |
|---|---|---|
C | 0.04 | 0.08 max. |
Mn | 1.64 | 1.0-2.5 |
Si | 0.40 | 0.3-0.65 |
S | 0.01 | 0.03 max. |
Ni | 9.85 | 9.0-11.0 |
Cu | 0.14 | 0.75 max. |
Mo | 0.2 | 0.75 max. |
P | 0.003 | 0.03 max. |
Cb & Ta | 0.86 |
TYPICAL MECHANICAL PROPERTIES OF WELD DEPOSIT (as welded)
Tensile strength (psi) | 91,000 |
Yield strength (psi) | 59,000 |