French 
USA CorporateCu ETP / Cu a1 / C11000
Physical
| US Customary | Metric | |
|---|---|---|
| Melting Point - Liquidus | 1981 F | 1083 C |
| Melting Point - Solidus | 1949 F | 1065 C |
| Density* | 0.322 lb/in3 at 68 F | 8.91 gm/cm3 @ 20 C |
| Specific Gravity | 8.91 | 8.91 |
| Electrical Resistivity | 10.3 ohms-cmil/ft @ 68 F | 1.71 microhm-cm @ 20 C |
| Electrical Conductivity** | 101 %IACS @ 68 F | 0.591 MegaSiemens/cm @ 20 C |
| Thermal Conductivity | 226.0 Btu · ft/(hr · ft2·oF)at 68F | 391.1 W/m · oK at 20 C |
| Coefficient of Thermal Expansion | 9.4 ·10-6 per oF (68-212 F) | 16.9 ·10-6 per oC (20-100 C) |
| Coefficient of Thermal Expansion | 9.6 ·10-6 per oF (68-392 F) | 17.3 ·10-6 per oC (20-200 C) |
| Coefficient of Thermal Expansion | 9.8 ·10-6 per oF (68-572 F) | 17.6 ·10-6 per oC (20-300 C) |
| Specific Heat Capacity | 0.092 Btu/lb/oF at 68 F | 393.5 J/kg · oK at 293 K |
| Modulas of Elasticity in Tension | 17000 ksi | 117000 MPa |
| Modulus of Rigidity | 6400 ksi | 44130 MPa |
*Actual value .321-.323
**Volume and weight basis
Common Fabrication Processes
Blanking, Coining, Coppersmithing, Drawing, Etching, Forming and Bending, Heading and Upsetting, Hot Forging and Pressing, Piercing and Punching, Roll Threading and Knurling, Shearing, Spinning, Squeezing and Swaging, Stamping
Fabrication Properties
| Joining Technique | Suitability |
|---|---|
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Not Recommended |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 65 |
| Machinability Rating | 20 |