C17500 Copper vs. S15700 Stainless Steel
C17500 copper belongs to the copper alloys classification, while S15700 stainless steel belongs to the iron alloys. There are 30 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 C17500 copper and the bottom bar is S15700 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 6.0 to 30 | |
| 1.1 to 29 |
| Fatigue Strength, MPa | 170 to 310 | |
| 370 to 770 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 45 | |
| 77 |
| Shear Strength, MPa | 200 to 520 | |
| 770 to 1070 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 860 | |
| 1180 to 1890 |
| Tensile Strength: Yield (Proof), MPa | 170 to 760 | |
| 500 to 1770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 870 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1440 |
| Melting Onset (Solidus), °C | 1020 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 480 |
| Thermal Conductivity, W/m-K | 200 | |
| 16 |
| Thermal Expansion, µm/m-K | 18 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 24 to 53 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 24 to 54 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 60 | |
| 15 |
| Density, g/cm3 | 8.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.7 | |
| 3.4 |
| Embodied Energy, MJ/kg | 73 | |
| 47 |
| Embodied Water, L/kg | 320 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 120 | |
| 17 to 270 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 to 2390 | |
| 640 to 4660 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 9.7 to 27 | |
| 42 to 67 |
| Strength to Weight: Bending, points | 11 to 23 | |
| 32 to 43 |
| Thermal Diffusivity, mm2/s | 59 | |
| 4.2 |
| Thermal Shock Resistance, points | 11 to 29 | |
| 39 to 63 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.2 | |
| 0.75 to 1.5 |
| Beryllium (Be), % | 0.4 to 0.7 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.090 |
| Chromium (Cr), % | 0 | |
| 14 to 16 |
| Cobalt (Co), % | 2.4 to 2.7 | |
| 0 |
| Copper (Cu), % | 95.6 to 97.2 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 69.6 to 76.8 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0 | |
| 6.5 to 7.7 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.5 | |
| 0 |