EN 1.7221 Steel vs. C73500 Nickel Silver
EN 1.7221 steel belongs to the iron alloys classification, while C73500 nickel silver belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is EN 1.7221 steel and the bottom bar is C73500 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 130 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 73 | |
| 47 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 780 | |
| 380 to 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 220 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1140 |
| Melting Onset (Solidus), °C | 1420 | |
| 1090 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 400 |
| Thermal Conductivity, W/m-K | 44 | |
| 36 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 6.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 6.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 | |
| 35 |
| Density, g/cm3 | 7.8 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 4.0 |
| Embodied Energy, MJ/kg | 20 | |
| 61 |
| Embodied Water, L/kg | 51 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 8.0 |
| Stiffness to Weight: Bending, points | 24 | |
| 19 |
| Strength to Weight: Axial, points | 23 to 27 | |
| 12 to 19 |
| Strength to Weight: Bending, points | 21 to 24 | |
| 13 to 18 |
| Thermal Diffusivity, mm2/s | 12 | |
| 10 |
| Thermal Shock Resistance, points | 19 to 23 | |
| 13 to 19 |
Alloy Composition
| Carbon (C), % | 0.22 to 0.29 | |
| 0 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0 |
| Copper (Cu), % | 0 | |
| 70.5 to 73.5 |
| Iron (Fe), % | 96.8 to 98.3 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 16.5 to 19.5 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 5.7 to 13 |
| Residuals, % | 0 | |
| 0 to 0.5 |