C12200 Copper vs. 70Ag-30Ni Alloy
C12200 copper belongs to the copper alloys classification, while 70Ag-30Ni alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is C12200 copper and the bottom bar is 70Ag-30Ni alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 100 |
| Poisson's Ratio | 0.34 | |
| 0.35 |
| Shear Modulus, GPa | 43 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 220 to 410 | |
| 320 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 170 |
| Melting Completion (Liquidus), °C | 1080 | |
| 960 |
| Melting Onset (Solidus), °C | 1030 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 300 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 85 | |
| 69 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 85 | |
| 62 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.0 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 5.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 16 |
| Strength to Weight: Axial, points | 6.9 to 13 | |
| 8.8 to 15 |
| Strength to Weight: Bending, points | 9.1 to 14 | |
| 10 to 15 |
| Thermal Shock Resistance, points | 7.9 to 15 | |
| 13 to 21 |
Alloy Composition
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| Copper (Cu), % | 99.9 to 99.985 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 28.8 to 31 |
| Phosphorus (P), % | 0.015 to 0.040 | |
| 0 |
| Silver (Ag), % | 0 | |
| 69 to 71 |
| Residuals, % | 0 | |
| 0 to 0.2 |