ERCuSn-A (Phos Bronze A)
Alloy Type: A5.7, COPPER AND COPPER ALLOY Bare Rods and Electrodes
ERCuSn-A Phos Bronze A is a copper-zinc bronze containing approximately 5% tin and up to 0.35% phosphorus added as a deoxidizer used to weld bronze and brass. It can also be used to weld copper if the presence of tin in the weld metal is not objectionable.
Typical Applications: overlaying of steel; joining of 509-519 series tin-bronze base metals
| AWS Class: ERCuSn-A | Certification: AWS A5.7/A5.7M:2007 |
| Alloy: ERCuSn-A | ASME SFA A5.7 |
| Welding Position:
|
Current:
AC-DCEP |
| Tensile Strength, kpsi: | 35 |
| Brinell Hardness | 70-85 |
Typical Wire Chemistry as per AWS A5.7 (single values are maximum)
| Cu including Ag | Al | Pb | P | Sn | Other |
| Remainder | 0.01 | 0.02 | 0.10-0.35 | 4.0-6.0 | 0.50 |
| Typical Welding Parameters | |||||
| Diameter | Process | Volt |
Amps |
GAS | |
| in | (mm) | ||||
| 1/16 | (1.6) | GTAW | 70-120 | 70-150 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
| 3/32 | (2.4) | GTAW | 120-160 | 140-230 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
| 1/8 | (3.2) | GTAW | 170-230 | 225-320 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
| Typical Welding Parameters | |||||
| Diameter | Process | Volt |
Amps |
GAS | |
| in | (mm) | ||||
| 0.035 | (1.6) | GMAW | 20-26 | 100-200 | 100% Argon or 75% Argon, 25% Helium |
| 0.045 | (2.4) | GMAW | 22-28 | 100-250 | 100% Argon or 75% Argon, 25% Helium |
| 1/16 | (3.2) | GMAW | 29-32 | 250-400 | 100% Argon or 75% argon, 25% Helium |
| 3/32 | (3.2) | GMAW | 32-34 | 350-500 | 100% Argon or 75% Argon, 25% Helium |