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VACULOY
STANDARD GRADES
Copper
Table
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| Material |
Vaculoy Grade |
Application |
Composition |
Density g/cm |
Hardness |
Electrical Conductivity
% IACS |
Other Classification |
| Copper
Tungsten |
CT 60 |
Arcing Contact |
60%Tungsten |
13.0 |
145 HV |
52 |
1w3 |
| CT 70 |
Arcing Contact Vacuum Switch |
70% Tungsten |
14.2 |
197 HV |
46 |
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| CT 72 |
Spark Erosion & Electro Chemical
Machining |
72% Tungsten |
14.5 |
200 HV |
40 |
10w3 |
| CT 75 |
Arcing Contact |
75% Tungsten |
14.8 |
220 HV |
44 |
20w3 |
| CT 75W |
Projection Welding |
75% Tungsten |
14.8 |
240 HV |
40 |
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| CT78 |
Arc Contact ResistanceWelding |
78% Tungsten |
15.2 |
230 HV |
40 |
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| CT 80 |
Arcing Contact |
80% Tungsten |
15.5 |
235 HV |
40 |
40w3 |
| Copper Tungsten Carbide |
CTC 67 |
Electrical Upsetting |
67% Tungsten Carbide |
12.7 |
350 HV |
32 |
20k3 |
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- Figures quoted are nominal and should not be regarded
as a specification
- Variations to standard compositions can also be supplied
- details on request
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Silver
Table
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| Material |
Vaculoy Grade |
Application |
Composition |
Density g/cm |
Hardness |
Electrical Conductivity
% IACS |
Other Classifications |
| Silver Tungsten |
ST 50 |
Arcing/Main Contact |
50% Tungsten |
13.4 |
110 HV |
58 |
50s |
| ST 65 |
Arcing/Main Contact |
65% Tungsten |
14.8 |
150 HV |
50 |
35s |
| ST 75 |
Arcing Contact |
75% Tungsten |
16.0 |
220 HV |
45 |
20s |
| Silver Tungsten
Carbide |
STC 60 |
Arcing Contact
Vacuum Switch |
60% Tungsten Carbide |
13.0 |
220 HV |
40 |
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| STC 72 |
Arcing Contact |
72% Tungsten Carbide |
13.8 |
400 HV |
22 |
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| Silver Cadmium Oxide |
SC 85 |
Main Contact |
85% Silver |
9.9 |
68 HB |
75 |
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| SC 90 |
Main Contact |
90% Silver |
9.95 |
64 HB |
78 |
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| Silver Nickel |
SN 70 |
Arcing/Main Contact |
70% Silver |
9.8 |
65 HB |
60 |
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- Figures quoted are nominal and should not be regarded
as a specification
- Variations to standard compositions can also be suplied
- details on request
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