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C70310
Elements | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Cu(1,2) | Pb | Sn | Zn | Fe | P | Ni(3) | Ag | Mg | Si | Zr | |
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Ni value includes Co. |
|||||||||||
Min (%) | 1.0 | 0.02 | 0.08 | 0.005 | |||||||
Max (%) | Rem | 0.05 | 1.0 | 2.0 | 0.10 | 0.05 | 4.0 | 0.50 | 0.10 | 1.0 | 0.05 |
Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.2% Offset (ksi) |
Elongation (%) |
---|---|---|---|---|---|
* Measured at room temperature, 68°F (20°C). | |||||
Strip | Mill-hardened Temper, TM - 1/2 Hard | TM02 |
95 Min for Standard |
85 Min for Standard |
10 Typ |
Mill-hardened Temper, TM - Hard | TM04 |
100 Min for Standard |
95 Min for Standard |
6 Typ |
|
Mill-hardened Temper, TM - XHMS Spring | TM08 |
110 Min for Standard |
105 Min for Standard |
4 Typ |
Melting Point - Liquidus°F | 1994 |
---|---|
Melting Point - Solidus°F | 1957 |
Densitylb/cu in. at 68°F | 0.319 |
Specific Gravity | 8.85 |
Electrical Conductivity% IACS at 68°F | 38 |
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F) | 9.4 |
Modulus of Elasticity in Tensionksi | 18600 |
Technique | Suitability |
---|---|
Soldering | Good |
Brazing | Good |
Oxyacetylene Welding | Good |
Gas Shielded Arc Welding | Good |
Coated Metal Arc Welding | Good |
Spot Weld | Good |
Seam Weld | Good |
Butt Weld | Good |
Capacity for Being Cold Worked | Excellent |
Capacity for Being Hot Formed | Excellent |
Common Fabrication Processes
- Forming and Bending
- Stamping
Thermal Properties
Product Category | Product | Reason Category | Reason |
---|---|---|---|
Electrical | Connectors | ||
Contacts | |||
Switches and Relays | |||
Terminals |
Form | Specific Sub-Form | Application | System | Standard | Description |
---|---|---|---|---|---|
Sheet & Strip | ASTM | B422/B422M | COPPER-ALUMINUM-SILICON-COBALT ALLOY AND COPPER-NICKEL-ALUMINUM-SILICON ALLOY SHEET AND STRIP | ||
Strip | ASTM | B888/B88M | COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS |
Corrosion Properties