C61900 Bronze vs. S21904 Stainless Steel
C61900 bronze belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 29 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 C61900 bronze and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 21 to 32 | |
| 17 to 51 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 43 | |
| 78 |
| Shear Strength, MPa | 370 to 410 | |
| 510 to 620 |
| Tensile Strength: Ultimate (UTS), MPa | 570 to 650 | |
| 700 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 230 to 310 | |
| 390 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 980 |
| Melting Completion (Liquidus), °C | 1050 | |
| 1400 |
| Melting Onset (Solidus), °C | 1040 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Conductivity, W/m-K | 79 | |
| 14 |
| Thermal Expansion, µm/m-K | 18 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 11 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 15 |
| Density, g/cm3 | 8.3 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 3.0 |
| Embodied Energy, MJ/kg | 51 | |
| 43 |
| Embodied Water, L/kg | 380 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 150 | |
| 160 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 430 | |
| 380 to 2070 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 22 | |
| 25 to 36 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 23 to 29 |
| Thermal Diffusivity, mm2/s | 22 | |
| 3.8 |
| Thermal Shock Resistance, points | 20 to 23 | |
| 15 to 21 |
Alloy Composition
| Aluminum (Al), % | 8.5 to 10 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.040 |
| Chromium (Cr), % | 0 | |
| 19 to 21.5 |
| Copper (Cu), % | 83.6 to 88.5 | |
| 0 |
| Iron (Fe), % | 3.0 to 4.5 | |
| 59.5 to 67.4 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 8.0 to 10 |
| Nickel (Ni), % | 0 | |
| 5.5 to 7.5 |
| Nitrogen (N), % | 0 | |
| 0.15 to 0.4 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 0 to 0.6 | |
| 0 |
| Zinc (Zn), % | 0 to 0.8 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |