AISI 431 Stainless Steel vs. C17000 Copper
AISI 431 stainless steel belongs to the iron alloys classification, while C17000 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is C17000 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 120 |
| Elongation at Break, % | 15 to 17 | |
| 1.1 to 31 |
| Poisson's Ratio | 0.28 | |
| 0.33 |
| Rockwell C Hardness | 26 | |
| 21 to 42 |
| Shear Modulus, GPa | 77 | |
| 45 |
| Shear Strength, MPa | 550 to 840 | |
| 320 to 750 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1380 | |
| 490 to 1310 |
| Tensile Strength: Yield (Proof), MPa | 710 to 1040 | |
| 160 to 1140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 270 |
| Melting Completion (Liquidus), °C | 1510 | |
| 980 |
| Melting Onset (Solidus), °C | 1450 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 390 |
| Thermal Conductivity, W/m-K | 26 | |
| 110 |
| Thermal Expansion, µm/m-K | 12 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.6 | |
| 22 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 22 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.7 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 8.7 |
| Embodied Energy, MJ/kg | 31 | |
| 140 |
| Embodied Water, L/kg | 120 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 180 | |
| 4.2 to 390 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1270 to 2770 | |
| 110 to 5420 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 32 to 50 | |
| 15 to 41 |
| Strength to Weight: Bending, points | 27 to 36 | |
| 16 to 30 |
| Thermal Diffusivity, mm2/s | 7.0 | |
| 32 |
| Thermal Shock Resistance, points | 28 to 43 | |
| 17 to 45 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.2 |
| Beryllium (Be), % | 0 | |
| 1.6 to 1.8 |
| Carbon (C), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 15 to 17 | |
| 0 |
| Copper (Cu), % | 0 | |
| 96.3 to 98.2 |
| Iron (Fe), % | 78.2 to 83.8 | |
| 0 to 0.4 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 1.3 to 2.5 | |
| 0.2 to 0.6 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |