Phos Bronze A Alloy
AWS A5.7 Class ERCuSn-A
ASME SFA5.7 ERCuSn-A
Washington Alloy Phos-Bronze A filler metal is used for MIG and TIG welding of tin-bronze base metals such as 509 to 519 series, for brass and for overlay welding of steel.
Phos-Bronze A contains approximately 5% tin and up to 0.35% phosphorus. The tin content increases the wear resistance of the weld deposit while the phosphorus acts as a deoxidizer. Preheating is recommended.
TYPICAL WELD METAL CHEMISTRY (%)
- | PHOS-BRONZE A |
|---|---|
Cu | Remainder |
0.80 max | |
0.30 max | |
0.05 max | |
0.05 max | |
0.10 max | |
0.20 max | |
Balance | |
0.15 total max | |
Supporting Documentation: