C51900 Bronze vs. SAE-AISI P21 Steel
C51900 bronze belongs to the copper alloys classification, while SAE-AISI P21 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is C51900 bronze and the bottom bar is SAE-AISI P21 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 42 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 620 | |
| 1130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 250 |
| Melting Completion (Liquidus), °C | 1040 | |
| 1450 |
| Melting Onset (Solidus), °C | 930 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 470 |
| Thermal Conductivity, W/m-K | 66 | |
| 41 |
| Thermal Expansion, µm/m-K | 18 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 7.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 14 | |
| 9.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 6.5 |
| Density, g/cm3 | 8.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 2.3 |
| Embodied Energy, MJ/kg | 51 | |
| 32 |
| Embodied Water, L/kg | 360 | |
| 62 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.0 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 40 |
| Strength to Weight: Bending, points | 13 to 18 | |
| 31 |
| Thermal Diffusivity, mm2/s | 20 | |
| 11 |
| Thermal Shock Resistance, points | 14 to 22 | |
| 37 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.18 to 0.22 |
| Chromium (Cr), % | 0 | |
| 0 to 0.5 |
| Cobalt (Co), % | 0 | |
| 1.1 to 1.3 |
| Copper (Cu), % | 91.7 to 95 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.1 | |
| 92.1 to 94.2 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.35 to 0.72 |
| Nickel (Ni), % | 0 | |
| 3.9 to 4.3 |
| Phosphorus (P), % | 0.030 to 0.35 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.2 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 5.0 to 7.0 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.15 to 0.25 |
| Zinc (Zn), % | 0 to 0.3 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |