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→5.1.6.2.1 Copper-Chromium Alloys
Copper-chromium materials are especially suitable for use as electrodes for resistance welding. During brazing the loss in hardness is limited if low melting brazing alloys and reasonably short heating times are used.
<div id="figures5">
!Melting<br />Temp Range<br />[°C]
|-
|CuBe1.7<br />CW100C<br />C17000CuCr|Be 1Cr 0.6 3 - 1.8<br />Co 0.3<br />Ni 0.32<br />Cu Rest|8.489|8 - 926<sup>a</sup><br />12 - 1348<sup>b</sup><br />11|45<sup>ca</sup>|14 - 16<br />21 - 2283<sup>b<br /sup>19|11 - 123.58<sup>a</sup><br />72.7 - 8.31<sup>b</sup>|170<sup>a</sup><br />9.1315<sup>cb</sup>|110
|17
|125<sup>a</sup><br />135<sup>b</sup>|ca. 380|890 - 1000|-|CuBe2<br />CW101C<br />C17200|Be 1.8 - 2.1<br />Co 0.3<br />Ni 0.3<br />Cu Rest|8.3|8 - 9<sup>a</sup><br />12 - 13<sup>b</sup><br />11<sup>c</sup>|14 - 16<br />21 - 22<br />19|11 - 12.5<sup>a</sup><br />7.7 - 8.3<sup>b</sup><br />9.1<sup>c</sup>|110|17|125<sup>a</sup><br />135<sup>b</sup>|ca. 380|870 - 980|-|CuCo2Be<br />CW104C<br />C17500|Co 2.0 - 2.8<br />Be 0.4 - 0.7<br />Ni 0.3<br />Cu Rest|8.8|11 - 14<sup>a</sup><br />25 - 27<sup>b</sup><br />27 - 34<sup>c</sup>|19 - 24<br />43 - 47<br />47 - 59|7.1 - 9.1<sup>a</sup><br />3.7 - 4.0<sup>b</sup><br />2.9<sup>c</sup>|210|18|131<sup>a</sup><br />138<sup>b</sup>112
|ca. 450
|1030 980 - 1070|-|CuNi2Be<br />CW110C<br />C17510|Ni 1.4 - 2.2<br />Be 0.2 - 0.6<br />Co 0.3<br />Cu Rest|8.8|11 - 14<sup>a</sup><br />25 - 27<sup>b</sup><br />27 - 34<sup>c</sup>|19 - 24<br />43 - 47<br />47 - 59|7.1 - 9.1<sup>a</sup><br />3.7 - 4.0<sup>b</sup><br />2.9<sup>c</sup>|230|18|131<sup>a</sup><br />138<sup>b</sup>|ca. 480|1060 - 11001080
|}
</figtable>
