C18400 Copper vs. EN 1.4303 Stainless Steel
C18400 copper belongs to the copper alloys classification, while EN 1.4303 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C18400 copper and the bottom bar is EN 1.4303 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 13 to 50 | |
| 13 to 49 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 44 | |
| 77 |
| Shear Strength, MPa | 190 to 310 | |
| 420 to 540 |
| Tensile Strength: Ultimate (UTS), MPa | 270 to 490 | |
| 590 to 900 |
| Tensile Strength: Yield (Proof), MPa | 110 to 480 | |
| 230 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 940 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1420 |
| Melting Onset (Solidus), °C | 1070 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 480 |
| Thermal Conductivity, W/m-K | 320 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 80 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 81 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 17 |
| Density, g/cm3 | 8.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.2 |
| Embodied Energy, MJ/kg | 41 | |
| 46 |
| Embodied Water, L/kg | 310 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 63 to 120 | |
| 110 to 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 54 to 980 | |
| 140 to 800 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 8.5 to 15 | |
| 21 to 32 |
| Strength to Weight: Bending, points | 10 to 16 | |
| 20 to 26 |
| Thermal Diffusivity, mm2/s | 94 | |
| 4.0 |
| Thermal Shock Resistance, points | 9.6 to 17 | |
| 13 to 20 |
Alloy Composition
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| Arsenic (As), % | 0 to 0.0050 | |
| 0 |
| Calcium (Ca), % | 0 to 0.0050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0.4 to 1.2 | |
| 17 to 19 |
| Copper (Cu), % | 97.2 to 99.6 | |
| 0 |
| Iron (Fe), % | 0 to 0.15 | |
| 64.8 to 72 |
| Lithium (Li), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 11 to 13 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Zinc (Zn), % | 0 to 0.7 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |