The Element of Trust.
Alloys
CDA Copper No. C 706 00
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Copper Nickel, 10%
COMPOSITION (%)
| Nominal | Minimum | Maxiumum | |
|---|---|---|---|
| Copper | 88.6 | — | — |
| Lead | — | — | .02 |
| Iron | 1.4 | 1.0 | 1.8 |
| Zinc | — | — | 0.5 |
| Nickel | 10.0 | 9.0 | 11.00 |
| Manganese | — | — | 1.0 |
| Phosphorus | — | — | .02 |
| Sulphur | — | — | .02 |
| Carbon | — | — | .05 |
| Copper plus sum of named elements | — | 99.5 | — |
PHYSICAL PROPERTIES
| English Units | C.G.S. Units | |
|---|---|---|
| Melting Point (Liquidus) | 2,100°F | 1,150°C |
| Melting Point (Solidus) | 2,010°F | 1,100°C |
| Density | .323 lb./cu. in. @ 68°F | 8.94 gm./cu. cm @ 20°C |
| Specific Gravity | 8.94 | 8.94 |
| Coefficient of Thermal Expansion | .0000095 per °F from 68°F to 572°F | .0000171 per °C from 20°C to 300°C |
| Thermal Conductivity | 26 Btu./sq. ft./ft./hr./°F @ 68°F | .11 cal./sq. cm/cm/sec./°C @ 20°C |
| Electrical Resistivity (Annealed) | 115 Ohms (circ. mil./ft.) @ 68°F | 19.1 Microhm-cm @ 20°C |
| Electrical Conductivity* (Annealed) | 9.0% IACS @ 68°F | .0522 Megohm-cm @ 20°C |
| Thermal Capacity (Specific Heat) | .09 Btu./lb./°F @ 68°F | .09 cal/gm./°C @ 20°C |
| Modulus of Elasticity (Tension) | 18,000,000 psi | 12,700 Kg/sq. mm |
| Modulus of Rigidity | 6,800,000 psi | 4,800 Kg/sq. mm |
*Volume basis
MECHANICAL PROPERTIES
| Size Section | Temper | Tensile Strength psi | Yield Strength (.5% Extension Under Load) psi | Reduction of Area % | Elongation in 2” % | Rockwell Hardness | Shear Stength psi | Fatigue Strength | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| F | B | 30T | psi | Million Cycles | |||||||
| Strip | |||||||||||
| 0.050 in. | 0.025 mm | 44,000 | 16,000 | — | 42 | 65 | 15 | 26 | — | — | — |
| Half Hard | 60,000 | 57,000 | — | 10 | 100 | 72 | 70 | — | — | — | |
The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable A.S.T.M. specification references.
