SAE-AISI A7 Steel vs. C21000 Brass
SAE-AISI A7 steel belongs to the iron alloys classification, while C21000 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI A7 steel and the bottom bar is C21000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 72 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 800 to 2150 | |
| 240 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 200 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1070 |
| Melting Onset (Solidus), °C | 1430 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 390 |
| Thermal Conductivity, W/m-K | 37 | |
| 230 |
| Thermal Expansion, µm/m-K | 12 | |
| 18 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 30 |
| Density, g/cm3 | 7.7 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 13 | |
| 2.6 |
| Embodied Energy, MJ/kg | 200 | |
| 42 |
| Embodied Water, L/kg | 100 | |
| 310 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 25 | |
| 18 |
| Strength to Weight: Axial, points | 29 to 77 | |
| 7.4 to 14 |
| Strength to Weight: Bending, points | 25 to 48 | |
| 9.6 to 15 |
| Thermal Diffusivity, mm2/s | 10 | |
| 69 |
| Thermal Shock Resistance, points | 27 to 72 | |
| 8.1 to 15 |
Alloy Composition
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| Carbon (C), % | 2.0 to 2.9 | |
| 0 |
| Chromium (Cr), % | 5.0 to 5.8 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 94 to 96 |
| Iron (Fe), % | 81.4 to 87.7 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 to 0.8 | |
| 0 |
| Molybdenum (Mo), % | 0.9 to 1.4 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 0.5 to 1.5 | |
| 0 |
| Vanadium (V), % | 3.9 to 5.2 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 3.7 to 6.0 |
| Residuals, % | 0 | |
| 0 to 0.2 |