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EDM Supplies Distribution
Metallics |
COPPER TUNGSTEN
- Diameters
- Tubes
- Rolled Sheets
- Roto-Tube
Copper Tungsten Specifications:
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| RWMA GROUP B |
CLASS 10 |
CLASS 11 |
NOMINAL COMPOSITION
% WEIGHT |
30% COPPER
70% TUNGSTEN |
25% COPPER
75% TUNGSTEN |
| ROCKWELL HARDNESS |
90B |
94B |
ELECTRICAL CONDUCTIVITY
% IACS |
50 |
48 |
ULTIMATE TENSILE
STRENGTH (PSI) |
85,000 |
90,000 |
CROSS BREAKING
STRENGTH (PSI) |
140,000 |
150,000 |
| DENSITY GMS/CC |
14.18 |
14.70 |
| THERMAL EXPANSION |
10.77 |
10.22 |
| THERMAL CONDUCTIVITY |
2.01 |
1.89 |
| SPECIFIC HEAT |
214 |
201 |
ELECTRICAL RESISTIVITY
MICRO-OHM-CM AT 20 |
3.45 |
3.59 |
CW70 is available from stock
CW75 is available upon request
SILVER TUNGSTEN
TUNGSTEN CARBIDE
- Tubes
- Small Rod and Wire on Request
- Pure Tungsten Rods
TELLURIUM COPPER (TELCO)
PRECISION TUBING
- Brass Copper
- Multi-Channel Copper
MOLYBDENUM ELECTRODES
For current pricing and complete information about our metallics, please contact us.
Or, go directly to Graphel's Online Catalog / Ordering.
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