The filler metal with good flowing properties-suitable for joining of oxygen free copper and copper materials subject to high strain easily workable welding seams without pores. For TIG welding of large work pieces preheating is recommended.
| Standard | Alloy | Chemical Composition(%) | Melting Range | |
| Solidus | Liquidus | |||
| AWS A5.7 BS EN14640 |
ERCu CuSn1 |
Cu:Min98.0 Al:0.01 Mn:0.5 P:0.15 Pb:0.02 Si:0.5 Sn:1.0 Other:0.5 | 1020℃ | 1050℃ |
| / | Oxygen free copper TU1 |
Cu: 99.97 Other: 0.03 | 1050℃ | 1083℃ |
Shapes:
 |
Rods | φ1.6-4.0mm Length: 200-1000mm |
 |
Wires | Spools:φ0.6-1.6mm Coils: 0.6-4.0mm |
 |
Rings | Min. inner diameter: 2.5mm |