AISI 321 Stainless Steel vs. C14181 Copper
AISI 321 stainless steel belongs to the iron alloys classification, while C14181 copper belongs to the copper alloys. There are 26 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 AISI 321 stainless steel and the bottom bar is C14181 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 120 |
| Elongation at Break, % | 34 to 50 | |
| 15 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 77 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 690 | |
| 210 |
| Tensile Strength: Yield (Proof), MPa | 220 to 350 | |
| 130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 200 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1080 |
| Melting Onset (Solidus), °C | 1400 | |
| 1080 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 390 |
| Thermal Conductivity, W/m-K | 16 | |
| 380 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 31 |
| Density, g/cm3 | 7.8 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 2.6 |
| Embodied Energy, MJ/kg | 45 | |
| 41 |
| Embodied Water, L/kg | 140 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 230 | |
| 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 310 | |
| 69 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 25 | |
| 18 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 6.5 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 8.8 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 110 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 7.4 |
Alloy Composition
| Cadmium (Cd), % | 0 | |
| 0 to 0.0020 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.0050 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Copper (Cu), % | 0 | |
| 99.9 to 100 |
| Iron (Fe), % | 65.3 to 74 | |
| 0 |
| Lead (Pb), % | 0 | |
| 0 to 0.0020 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 9.0 to 12 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.0020 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 to 0.7 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0020 |