C65400 Bronze vs. ASTM A231 Spring Steel
C65400 bronze belongs to the copper alloys classification, while ASTM A231 spring steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C65400 bronze and the bottom bar is ASTM A231 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 2.6 to 47 | |
| 14 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 43 | |
| 73 |
| Shear Strength, MPa | 350 to 530 | |
| 1080 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 1060 | |
| 1790 |
| Tensile Strength: Yield (Proof), MPa | 170 to 910 | |
| 1570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 420 |
| Melting Completion (Liquidus), °C | 1020 | |
| 1460 |
| Melting Onset (Solidus), °C | 960 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Conductivity, W/m-K | 36 | |
| 52 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.3 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 2.3 |
| Density, g/cm3 | 8.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.0 |
| Embodied Energy, MJ/kg | 45 | |
| 28 |
| Embodied Water, L/kg | 310 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 10 to 480 | |
| 230 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 34 | |
| 64 |
| Strength to Weight: Bending, points | 16 to 27 | |
| 42 |
| Thermal Diffusivity, mm2/s | 10 | |
| 14 |
| Thermal Shock Resistance, points | 18 to 39 | |
| 53 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.48 to 0.53 |
| Chromium (Cr), % | 0.010 to 0.12 | |
| 0.8 to 1.1 |
| Copper (Cu), % | 93.8 to 96.1 | |
| 0 |
| Iron (Fe), % | 0 | |
| 96.7 to 97.7 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.7 to 0.9 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 2.7 to 3.4 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tin (Sn), % | 1.2 to 1.9 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.15 to 0.3 |
| Zinc (Zn), % | 0 to 0.5 | |
| 0 |
| Residuals, % | 0 to 0.2 | |
| 0 |