COPPER-TIN FILLER METAL FOR WELDING COPPER BASE ALLOYS
IDENTIFICATION
GM 701, ER CuSn-A
CLASSIFICATION
AWS / SFA 5.7: ERCuSn–A, DIN 1733: SG-CuSn6
DESCRIPTION
Tin-bronze wire with good resistance against corrosion and overheating. GM 701 is easily machinable and the weld pool is clean and allows good visibility. The weld metal is tough and free of porosity.
CHEMICAL ANALYSIS (RANGE) %
Sn | Al | Pb | P | Cu |
4.0 - 6.0 | 0.01 max | 0.02 max | 0.10 - 0.35 | Balance |
MECHANICAL PROPERTIES (RANGE)
UTS (MPa) | Electrical Conductivity | Thermal Conductivity |
330 approx | 9 Sm/mm² | 75 W/m.k. |
TYPICAL APPLICATIONS
PACKING PARAMETERS
Size (mm) | Weight / Spool (kg) |
1.2 | 12.5 |
1.6 | 12.5 |
2 | 12.5 |
2.40 / 2.50 | 12.5 |