Copper Alloys
Brouwer Metaal specializes in copper parts. We know exactly which alloy fits best to each application. With our carefully developed Brocadur® copper alloys, such as Brocadur® CCZ, Brocadur® CCB and Brocadur® BF you can be assured of the best materials for your machinery.
| Trade name | Brocadur CCZ | Brocudur CCB | Brocadur CCNB | Brocadur BF | Brocadur NIBE | Brocadur B20 | |
|---|---|---|---|---|---|---|---|
| Chemical composition (in % of weight) | Class 2 | Class 3 | Class 3 | Class 3 | Class 3 | Class 4 | |
| Cr | 0.8 | - | - | 0.4 | - | - | |
| Zr | 0.1 | - | - | - | - | - | |
| Co | - | 2.0 | 1.0 | - | - | 0.4 | |
| Ni | - | - | 1.0 | 2.4 | 1.7 | 0.4 | |
| Be | - | 0.5 | 0.5 | - | 0.3 | 2.0 | |
| Si | - | 0.2 | - | 0.7 | - | - | |
| P | - | - | - | - | - | - | |
| Others | max. 0.2 | max. 0.2 | max. 0.2 | max. 0.2 | max. 0.2 | max. 0.2 | |
| Cu | remainder | remainder | remainder | remainder | remainder | remainder | |
| Mechanical properties (standard values at 200 C): | |||||||
| Hardness Brinell | HB 30 | 135-170 | 230-260 | 230-260 | 180-220 | 210-250 | 320-370 |
| Tensile strength | N/mm² | 380-470 | 720-280 | 720-280 | 700-900 | 700-760 | 1200-1300 |
| 0,2% – yield strength | N/mm² | 320-410 | 660-740 | 660-740 | 490-550 | 650-700 | 950-1050 |
| Elongation A 5 | % | 14-18 | 10-14 | 10-14 | 10-12 | 10-14 | 2-5 |
| Modules of elasticity | N/mm² | 125x10³ | 135×10³ | 135×10³ | 115×10³ | 135×10³ | 135×10³ |
| Softening temperature | °C | 500 | 480 | 480 | 480 | 480 | 300 |
| Physical properties (standard values at 200 C): | |||||||
| Specific weight | g/cm³ | 8.9 | 8.8 | 8.8 | 8.8 | 8.8 | 8.3 |
| Thermal conductivity | W/mK | 320 | 250 | 250 | 220 | 290 | 120 |
| Electrical conductivity | % IACS | 80 (47 MS/m) | 48 (28 MS/m) | 48 (28 MS/m) | 48 (28 MS/m) | 69 (40 MS/m) | 26 (15 MS/m) |
| Thermal expansion coefficient | 20-300C | 17.0 x 10⁶/K | 17.2 x 10⁶/K | 17.2 x 10⁶/K | 16 x 10⁶/K | 17.2 x 10⁶/K | 17.0 x 10⁶/K |
| Forms of delivery: | |||||||
| Round drawn | 0 | 0 | 0 | 0 | 0 | 0 | |
| Round forged | 0 | 0 | 0 | 0 | 0 | 0 | |
| Flat, square, hexagon drawn | 0 | 0 | 0 | 0 | 0 | 0 | |
| Flat, square forged | 0 | 0 | 0 | 0 | 0 | 0 | |
| Forged plates | 0 | 0 | 0 | 0 | 0 | 0 | |
| Cut from forged round bar / plate | 0 | 0 | 0 | 0 | 0 | 0 | |
| Cut from premachined rouond bar / plate | 0 | 0 | 0 | 0 | 0 | 0 | |
| Tube | 0 |
Note: N/mm2 = 1MPa
Note: 1MS/m = 1 m/Qmm2
Note:100% IACS = 58 MS/m
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