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Contact Us
Kaiyuan Avenue,Luoyang,Henan
CONTACT: Xu Jianmin
TEL: +86-379-64687113
FAX: +86-379-64687112
MOBILE:+86-13849934380
EMAIL: sales@moly-china.com
Advantages：
1. High arc resistance combined with good electrical conductivity;
2. High thermal conductivity;
3. Low thermal expansion;
Product Standard: GB/T 8320-2003，ASTM B 702-93（Reapproved 2004）
Tungsten Copper Composites are offered with 6~50wt.% Cu.
Advantages：
1. High arc resistance combined with good electrical conductivity;
2. High thermal conductivity;
3. Low thermal expansion;
Chemical Composition, Physical & Mechanical Properties of Tungsten-Copper Composites:
|
Class |
Chemical Composition (wt%) |
Density |
Hardness |
Resistivity |
IACS |
Bending Strength |
||
|
Cu |
Total Impurities≤ |
W |
g/cm3 ≥ |
HB Kgf/mm2 ≥ |
μΩ.cm ≤ |
% ≥ |
MPa ≥ |
|
|
W50/Cu50 |
50±2.0 |
0.5 |
Balance |
11.85 |
115 |
3.2 |
54 |
-- |
|
W55/Cu45 |
45±2.0 |
0.5 |
Balance |
12.30 |
125 |
3.5 |
49 |
-- |
|
W60/Cu40 |
40±2.0 |
0.5 |
Balance |
12.75 |
140 |
3.7 |
47 |
-- |
|
W65/Cu35 |
35±2.0 |
0.5 |
Balance |
13.30 |
155 |
3.9 |
44 |
-- |
|
W70/Cu30 |
30±2.0 |
0.5 |
Balance |
13.80 |
175 |
4.1 |
42 |
790 |
|
W75/Cu25 |
25±2.0 |
0.5 |
Balance |
14.50 |
195 |
4.5 |
38 |
885 |
|
W80/Cu20 |
20±2.0 |
0.5 |
Balance |
15.15 |
220 |
5.0 |
34 |
980 |
|
W85/Cu15 |
15±2.0 |
0.5 |
Balance |
15.90 |
240 |
5.7 |
30 |
1080 |
|
W90/Cu10 |
10±2.0 |
0.5 |
Balance |
16.75 |
260 |
6.5 |
27 |
1160 |
1. Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors；
2. Electrodes in electric spark erosion cutting machines；
3. Electrodes for resistance welding；
