CuSi 3 / 2.1461 Tig welding rods copper, size: 2.40 mm x 1000 mm with flat embossing at the end of the rod, price per carton incl. current surcharges, PU = 5 kg.
Scope of application
Welding rod/wire electrode made of copper-silicon alloy for TIG or MIG welding.
Also very suitable for TIG or MIG brazing.
Standard designation
EN ISO 24373 S Cu 6560
Material number 2.1461
AWS/ASME SFA-5.7 ER CuSi - A
Most important areas of application
Copper, low-alloyed copper and copper-zinc alloys, as well as
Build-up welding on unalloyed and low-alloyed steels and on cast iron.
Physical properties (guide values)
| Electrical conductivity at 20°C [S . m/mm2] | Thermal conductivity at 20°C [W/(m . K)] | Linear Thermal expansion- coefficient(20-300°C) [1/K] |
| 3 - 4 | 35 | 18 - 10-6 |
Mechanical quality values of the weld metal (guide values)
| Welding method Shielding gas Heat treatment Test temperature | [°C] | tIG Welding argon untreated +20°C | mIG Welding argon untreated +20°C |
| 0.2 % proof stress Rp0.2 | mPa | 120 | 120 |
| Tensile strength Rm | mPa | 350 | 350 |
| Elongation at breakA5 | [%] | 40 | 40 |
| Notched bar impact energyAV | [J] | 60 | 60 |
| Brinell hardness HB 10/1000 | mPa | 80 | 80 |
Directional analysis of the pure weld metal in %
| Cu | Si | Mn | Sn | Fe | Zn |
| Base | 3 | 1 | 0,1 | 0,07 | 0,1 |
Special notes
TIG - Preheating of the base material is usually not necessary.
Do not keep the weld pool too wide. For build-up welding on ferrous materials
introduce as much filler metal as possible into the arc.
Preheat MIG - thick workpieces to +250°C. Do not keep the weld pool too wide.
For the 1st layer of build-up welds on ferrous materials, the impulse-
Arc welding is recommended.