ERCuSi-A (Silicon Bronze)
Alloy Type: A5.7, COPPER AND COPPER ALLOY Bare Rods and Electrodes
ERCuSi-A Silicon Bronze is primarily used for MIG, TIG and gas welding of copper, copper-silicon and copper-zinc base metals to themselves and to steel. It is an excellent choice for joining plain or galvanized sheet steel to metal as well as other coated steels.
Typical Applications: surfacing areas subject to erosion
AWS Class: ERCuSi-A | Certification: AWS A5.7/A5.7M:2007 |
Alloy: ERCuSi-A | ASME SFA A5.7 |
Welding Position:
|
Current:
AC-DCEP |
Tensile Strength, kpsi: | 50 min |
Elongation in 2” (%): | 65% |
Brinell Hardness | 80-100 |
Typical Wire Chemistry as per AWS A5.7 (single values are maximum)
Cu including Ag | Zn | Sn | Mn | Fe | Si | Al | Pb |
Other |
Remainder | 1.0 | 1.0 | 1.5 | 0.50 | 2.8-4.0 | 0.01 | 0.02 |
0.50 |
Typical Welding Parameters | |||||
Diameter | Process | Volt |
Amps |
GAS | |
in | (mm) | ||||
1/16 | (1.6) | GTAW | 70-120 | 70-120 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
3/32 | (2.4) | GTAW | 120-160 | 120-160 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
1/8 | (3.2) | GTAW | 170-230 | 170-230 | ACHF using 100% Argon or Helium 2% Thoriated, Ceriated or Lanthanum Tungsten Electrode |
Diameter | Process | Volt |
Amps |
GAS | |
in | (mm) | ||||
.035 | (.09) | GMAW | 20-26 | 70-150 | 100% Argon or 75% Argon, 25% Helium |
.045 | (1.14) | GMAW | 22-28 | 120-160 | 100% Argon or 75% Argon, 25% Helium |
1/16 | (1.6) | GMAW | 29-32 | 250-400 | 100% Argon or 75% Argon, 25% Helium |
3/32 | (2.4) | GMAW | 32-34 | 350-500 | 100% Argon or 75% Argon, 25% Helium |
.035 | (.09) | GTAW | 11-13 | 45-135 | 100% Argon |
.045 | (1.14) | GTAW | 12-14 | 60-150 | 100% Argon |