CR021A Copper vs. SAE-AISI 1137 Steel
CR021A copper belongs to the copper alloys classification, while SAE-AISI 1137 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 CR021A copper and the bottom bar is SAE-AISI 1137 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 15 | |
| 11 to 17 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 43 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 230 | |
| 700 to 760 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 370 to 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 400 |
| Melting Completion (Liquidus), °C | 1090 | |
| 1460 |
| Melting Onset (Solidus), °C | 1040 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 470 |
| Thermal Conductivity, W/m-K | 380 | |
| 51 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 98 | |
| 10 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 1.9 |
| Density, g/cm3 | 9.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 41 | |
| 19 |
| Embodied Water, L/kg | 320 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 81 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 83 | |
| 360 to 1130 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 7.1 | |
| 25 to 27 |
| Strength to Weight: Bending, points | 9.3 | |
| 22 to 24 |
| Thermal Diffusivity, mm2/s | 110 | |
| 14 |
| Thermal Shock Resistance, points | 8.1 | |
| 21 to 23 |
Alloy Composition
| Bismuth (Bi), % | 0 to 0.00050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.32 to 0.39 |
| Copper (Cu), % | 99.95 to 99.998 | |
| 0 |
| Iron (Fe), % | 0 | |
| 97.8 to 98.3 |
| Lead (Pb), % | 0 to 0.0050 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 1.4 to 1.7 |
| Phosphorus (P), % | 0.0020 to 0.0070 | |
| 0 to 0.040 |
| Silver (Ag), % | 0 to 0.015 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0.080 to 0.13 |