C31400 Bronze vs. ACI-ASTM CN3M Steel
C31400 bronze belongs to the copper alloys classification, while ACI-ASTM CN3M steel belongs to the iron alloys. There are 28 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 C31400 bronze and the bottom bar is ACI-ASTM CN3M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 6.8 to 29 | |
| 34 |
| Poisson's Ratio | 0.33 | |
| 0.28 |
| Shear Modulus, GPa | 42 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 270 to 420 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 78 to 310 | |
| 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1450 |
| Melting Onset (Solidus), °C | 1010 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 470 |
| Thermal Conductivity, W/m-K | 180 | |
| 13 |
| Thermal Expansion, µm/m-K | 18 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 42 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 43 | |
| 1.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 31 |
| Density, g/cm3 | 8.8 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 5.9 |
| Embodied Energy, MJ/kg | 42 | |
| 80 |
| Embodied Water, L/kg | 310 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 59 | |
| 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 28 to 420 | |
| 89 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 8.7 to 13 | |
| 17 |
| Strength to Weight: Bending, points | 11 to 14 | |
| 17 |
| Thermal Diffusivity, mm2/s | 54 | |
| 3.4 |
| Thermal Shock Resistance, points | 9.6 to 15 | |
| 11 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 20 to 22 |
| Copper (Cu), % | 87.5 to 90.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 42.4 to 52.5 |
| Lead (Pb), % | 1.3 to 2.5 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 4.5 to 5.5 |
| Nickel (Ni), % | 0 to 0.7 | |
| 23 to 27 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zinc (Zn), % | 5.8 to 11.2 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |