C19020 Copper vs. S21640 Stainless Steel
C19020 copper belongs to the copper alloys classification, while S21640 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is C19020 copper and the bottom bar is S21640 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 2.3 to 5.7 | |
| 46 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 44 | |
| 78 |
| Shear Strength, MPa | 260 to 340 | |
| 520 |
| Tensile Strength: Ultimate (UTS), MPa | 440 to 590 | |
| 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 940 |
| Melting Completion (Liquidus), °C | 1090 | |
| 1430 |
| Melting Onset (Solidus), °C | 1030 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 480 |
| Thermal Conductivity, W/m-K | 190 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 50 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 50 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 17 |
| Density, g/cm3 | 8.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.6 |
| Embodied Energy, MJ/kg | 44 | |
| 51 |
| Embodied Water, L/kg | 310 | |
| 150 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 14 to 18 | |
| 27 |
| Strength to Weight: Bending, points | 14 to 18 | |
| 23 |
| Thermal Diffusivity, mm2/s | 55 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 to 21 | |
| 16 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17.5 to 19.5 |
| Copper (Cu), % | 95.7 to 99.19 | |
| 0 |
| Iron (Fe), % | 0 | |
| 63 to 74.3 |
| Manganese (Mn), % | 0 | |
| 3.5 to 6.5 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 2.0 |
| Nickel (Ni), % | 0.5 to 3.0 | |
| 4.0 to 6.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 1.0 |
| Nitrogen (N), % | 0 | |
| 0.080 to 0.3 |
| Phosphorus (P), % | 0.010 to 0.2 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 0.3 to 0.9 | |
| 0 |
| Residuals, % | 0 to 0.2 | |
| 0 |