C18700 Copper vs. EN 1.4020 Stainless Steel
C18700 copper belongs to the copper alloys classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is C18700 copper and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 9.0 to 9.6 | |
| 13 to 34 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 43 | |
| 77 |
| Shear Strength, MPa | 170 to 190 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 330 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 230 to 250 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 890 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1390 |
| Melting Onset (Solidus), °C | 950 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 11 |
| Density, g/cm3 | 9.0 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.5 |
| Embodied Energy, MJ/kg | 41 | |
| 37 |
| Embodied Water, L/kg | 310 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 29 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 240 to 280 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 9.0 to 10 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 11 to 12 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 10 to 12 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 16.5 to 19 |
| Copper (Cu), % | 98 to 99.2 | |
| 0 |
| Iron (Fe), % | 0 | |
| 62.8 to 71.8 |
| Lead (Pb), % | 0.8 to 1.5 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 11 to 14 |
| Nickel (Ni), % | 0 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.5 | |
| 0 |