Grade 21 Titanium vs. C73500 Nickel Silver
Grade 21 titanium belongs to the titanium alloys classification, while C73500 nickel silver belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 21 titanium and the bottom bar is C73500 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 130 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 51 | |
| 47 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1340 | |
| 380 to 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 220 |
| Melting Completion (Liquidus), °C | 1740 | |
| 1140 |
| Melting Onset (Solidus), °C | 1690 | |
| 1090 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 400 |
| Thermal Conductivity, W/m-K | 7.5 | |
| 36 |
| Thermal Expansion, µm/m-K | 7.1 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 60 | |
| 35 |
| Density, g/cm3 | 5.4 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 32 | |
| 4.0 |
| Embodied Energy, MJ/kg | 490 | |
| 61 |
| Embodied Water, L/kg | 180 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 8.0 |
| Stiffness to Weight: Bending, points | 32 | |
| 19 |
| Strength to Weight: Axial, points | 46 to 69 | |
| 12 to 19 |
| Strength to Weight: Bending, points | 38 to 50 | |
| 13 to 18 |
| Thermal Diffusivity, mm2/s | 2.8 | |
| 10 |
| Thermal Shock Resistance, points | 66 to 100 | |
| 13 to 19 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 0 | |
| 70.5 to 73.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 14 to 16 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 16.5 to 19.5 |
| Niobium (Nb), % | 2.2 to 3.2 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.17 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.25 | |
| 0 |
| Titanium (Ti), % | 76 to 81.2 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 5.7 to 13 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |