Chemical, Physical and Mechanical Properties of WIRBALIT® Copper Alloys
Value | Unit | WIRBALIT® HF/N/G | WIRBALIT® B | WIRBALIT® D | WIRBALIT® CA | |
|---|---|---|---|---|---|---|
Composition |
| CuCr1Zr | CuCo2Be | CuNi2.5SiCr | CuAl2O3 | |
Material No. / Standard |
| 2.1293 - CW106C C 18150 | 2.1285 - CW104C C17500 | DIN 17666 | C15715 | |
Tensile strength (Rm) | MPa | ≥ 490 | ≥ 690 | ≥ 570 | ≤ 530 | |
Yield strength (Rp0.2) | MPa | ≥ 440 | ≥ 570 | ≥ 460 | ≤ 460 | |
Elongation at break (A) | % | ≥ 10 | ≥ 12 | ≥ 10 | ||
Elongation | % | ≥ 50 | ≥ 15 | ≥ 25 | ||
Hardness HBW | 2.5/62.5 | 150–180 | 220–280 | ≥ 185 | 150–180 | |
Hardness | HV30 | 160–185 | 230–300 | ≥ 195 | 160–185 | |
Density at 20°C | g/cm3 | 8.9 | 8.8 | 8.9 | 8.9 | |
Melting temp. (Liquidus) | °C | 1075 | 1056 | 1060 | 1083 | |
Coefficient of linear expansion | (20°C - 300°C) 10-6/K | 18 | 17.8 | 18 | ~17 | |
Elastic modulus | kN/mm2 | 120 | 120 | 140 | 130 | |
Thermal conductivity at 20°C | W/(m · K) | 330 | 230 | 220 | > 320 | |
Softening temperature | °C | 475 | 500 | 475 | 980 |
Hot Hardness
Brinell hardness HBW 2.5/62.5 and electrical conductivity of WIRBALIT® HF at room temperature after annealing at 600 °C, depending on annealing time.
Annealing Resistance
Brinell hardness HBW 2.5/62.5 after 30 minutes of annealing at defined temperature, measured at room temperature.
Conductivity
Brinell hardness HBW 2.5/62.5 as a function of test temperature, measured under static load with progressively increasing temperature.