C70260 Copper vs. EN 1.7221 Steel
C70260 copper belongs to the copper alloys classification, while EN 1.7221 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is C70260 copper and the bottom bar is EN 1.7221 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 9.5 to 19 | |
| 11 to 17 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 44 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 760 | |
| 650 to 780 |
| Tensile Strength: Yield (Proof), MPa | 410 to 650 | |
| 430 to 630 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 420 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1460 |
| Melting Onset (Solidus), °C | 1040 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 470 |
| Thermal Conductivity, W/m-K | 160 | |
| 44 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 to 50 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 40 to 51 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 2.4 |
| Density, g/cm3 | 8.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.5 |
| Embodied Energy, MJ/kg | 43 | |
| 20 |
| Embodied Water, L/kg | 310 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 46 to 140 | |
| 83 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 1810 | |
| 490 to 1050 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 24 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 45 | |
| 12 |
| Thermal Shock Resistance, points | 18 to 27 | |
| 19 to 23 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 95.8 to 98.8 | |
| 0 |
| Iron (Fe), % | 0 | |
| 96.8 to 98.3 |
| Manganese (Mn), % | 0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 1.0 to 3.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.2 to 0.7 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.5 | |
| 0 |