ASTM A387 Grade 91 Class 2 vs. C66100 Bronze
ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while C66100 bronze belongs to the copper alloys. There are 27 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 ASTM A387 grade 91 class 2 and the bottom bar is C66100 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 20 | |
| 8.0 to 40 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 75 | |
| 43 |
| Shear Strength, MPa | 420 | |
| 280 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 410 to 790 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 120 to 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 200 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1050 |
| Melting Onset (Solidus), °C | 1420 | |
| 1000 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 400 |
| Thermal Conductivity, W/m-K | 26 | |
| 34 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 29 |
| Density, g/cm3 | 7.8 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 37 | |
| 42 |
| Embodied Water, L/kg | 88 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 53 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 60 to 790 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 24 | |
| 13 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 14 to 22 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 9.7 |
| Thermal Shock Resistance, points | 19 | |
| 15 to 29 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 92 to 97 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0.2 to 0.8 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.5 |
| 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 | |
| 2.8 to 3.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 1.5 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |