SAE-AISI 8620 Steel vs. C81400 Copper
SAE-AISI 8620 steel belongs to the iron alloys classification, while C81400 copper belongs to the copper 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 SAE-AISI 8620 steel and the bottom bar is C81400 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 13 to 31 | |
| 11 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 73 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 690 | |
| 370 |
| Tensile Strength: Yield (Proof), MPa | 360 to 570 | |
| 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 200 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1090 |
| Melting Onset (Solidus), °C | 1420 | |
| 1070 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 390 |
| Thermal Conductivity, W/m-K | 39 | |
| 260 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 60 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 61 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.6 | |
| 33 |
| Density, g/cm3 | 7.8 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 2.8 |
| Embodied Energy, MJ/kg | 20 | |
| 45 |
| Embodied Water, L/kg | 50 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 150 | |
| 36 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 340 to 880 | |
| 260 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 18 to 24 | |
| 11 |
| Strength to Weight: Bending, points | 18 to 22 | |
| 13 |
| Thermal Diffusivity, mm2/s | 10 | |
| 75 |
| Thermal Shock Resistance, points | 15 to 20 | |
| 13 |
Alloy Composition
| Beryllium (Be), % | 0 | |
| 0.020 to 0.1 |
| Carbon (C), % | 0.18 to 0.23 | |
| 0 |
| Chromium (Cr), % | 0.4 to 0.6 | |
| 0.6 to 1.0 |
| Copper (Cu), % | 0 | |
| 98.4 to 99.38 |
| Iron (Fe), % | 96.9 to 98 | |
| 0 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0 |
| Nickel (Ni), % | 0.4 to 0.7 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |