ASTM A387 Grade 91 Class 2 vs. C62400 Bronze
ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while C62400 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 91 class 2 and the bottom bar is C62400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 20 | |
| 11 to 14 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 75 | |
| 42 |
| Shear Strength, MPa | 420 | |
| 420 to 440 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 690 to 730 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 270 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 220 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1040 |
| Melting Onset (Solidus), °C | 1420 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 440 |
| Thermal Conductivity, W/m-K | 26 | |
| 59 |
| Thermal Expansion, µm/m-K | 13 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.9 | |
| 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 27 |
| Density, g/cm3 | 7.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.2 |
| Embodied Energy, MJ/kg | 37 | |
| 53 |
| Embodied Water, L/kg | 88 | |
| 400 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 68 to 77 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 320 to 550 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 25 | |
| 20 |
| Strength to Weight: Axial, points | 24 | |
| 23 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 21 to 22 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 16 |
| Thermal Shock Resistance, points | 19 | |
| 25 to 26 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.020 | |
| 10 to 11.5 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 82.8 to 88 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 2.0 to 4.5 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 0.3 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0.2 to 0.5 | |
| 0 to 0.25 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.2 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |