The Element of Trust.
Alloys
CDA Copper No. C 710 00
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Copper Nickel, 20%
COMPOSITION (%)
| Nominal | Minimum | Maxiumum | |
|---|---|---|---|
| Copper (incl. Silver) | 79 | Remainder | Remainder |
| Lead | — | — | .05 |
| Iron | — | — | 1.0 |
| Zinc | — | — | 1.0 |
| Nickel | 21 | 19.0 | 23.0 |
| Manganese | — | — | 1.0 |
NEAREST APPLICABLE ASTM SPECIFICATIONS
| Bolts | F468 |
| Flat Products | B122 |
| Nuts | F467 |
| Pipe | B466, B467 |
| Rod | — |
| Screws | F468 |
| Shapes | — |
| Studs | F468 |
| Tube | B111, B359, B395, B466, B467 |
| Wire | B206 |
PHYSICAL PROPERTIES
| English Units | C.G.S. Units | |
|---|---|---|
| Melting Point (Liquidus) | 2190°F | 1200°C |
| Melting Point (Solidus) | 2100°F | 1150°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 | per °F from 68°F to 212°F | per °C from 20°C to 100°C |
| Coefficient of Thermal Expansion | per °F from 68°F to 392°F | per °C from 20°C to 200°C |
| Coefficient of Thermal Expansion | .0000091 per °F from 68°F to 572°F | .0000164 per °C from 20°C to 300°C |
| Thermal Conductivity | 21 Btu./sq. ft./ft./hr./°F @ 68°F | .09 cal/sq. cm/cm/seC/°C @ 20°C |
| Electrical Resistivity (Annealed) | 160 Ohms (circ. mil./ft.) @ 68°F | 26.6 Microhm-cm @ 20°C |
| Electrical Conductivity* (Annealed) | 6.5% IACS @ 68°F | .038 Megohm-cm @ 20°C |
| Thermal Capacity (Specific Heat) | .09 Btu./lb./°F @ 68°F | .09 cal./gm./°C @ 20°C |
| Modulus of Elasticity (Tension) | 20,000 ksi | 14,100 Kg./sq. mm |
| Modulus of Rigidity | 7,500 ksi | 5,275 Kg./sq. mm |
*Volume basis
MECHANICAL PROPERTIES
| Size Section in. | Temper | Tensile Strength ksi | Yield Strength | Elongation in 2” % | Rockwell Hardness | Shear Stength ksi | Fatigue Strength | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (.5% Ext. Under Load) ksi | (.2% Offset) ksi | F | B | 30T | ksi | Million Cycles | |||||
| Flat Products | |||||||||||
| 0.040 in. | .050 mm | 51.0 | 13.0 | 13.0 | 35 | 72 | 25 | — | — | — | — |
| .035mm | 52.0 | 14.0 | 14.0 | 35 | 73 | 27 | — | — | — | — | |
| .025mm | 53.0 | 16.0 | 16.0 | 35 | 75 | 30 | — | — | — | — | |
| Quarter Hard | 60.0 | 48.0 | 49.0 | 20 | 92 | 58 | — | — | — | — | |
| Half Hard | 68.0 | 62.0 | 63.0 | 8 | 100 | 75 | — | — | — | — | |
| Hard | 75.0 | 71.0 | 72.0 | 5 | — | 80 | — | — | — | — | |
| Extra Hard | 78.0 | 75.0 | 76.0 | 4 | — | 82 | — | — | — | — | |
| Spring | 82.0 | 78.0 | 79.0 | 3 | — | 84 | — | — | — | — | |
| Extra Spring | 85.0 | 78.0 | 79.0 | 3 | — | 86 | — | — | — | — | |
| Tube | |||||||||||
| 1.0 in. OD | .025mm | 49.0 | 18.0 | — | 40 | 72 | — | — | — | — | — |
| x .065 in. | Light Drawn | 68.0 | 62.0 | — | 14 | — | 76 | — | — | 20.0 | 100 |
| Wire | |||||||||||
| .080 in. | Extra Spring | 95.0 | 85.0 | — | 5 | — | — | — | — | — | — |
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.
