C47940 Brass vs. SAE-AISI 4320 Steel
C47940 brass belongs to the copper alloys classification, while SAE-AISI 4320 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is C47940 brass and the bottom bar is SAE-AISI 4320 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 14 to 34 | |
| 21 to 29 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 250 to 310 | |
| 370 to 500 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 520 | |
| 570 to 790 |
| Tensile Strength: Yield (Proof), MPa | 160 to 390 | |
| 430 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 420 |
| Melting Completion (Liquidus), °C | 850 | |
| 1460 |
| Melting Onset (Solidus), °C | 800 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 470 |
| Thermal Conductivity, W/m-K | 110 | |
| 46 |
| Thermal Expansion, µm/m-K | 20 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 3.4 |
| Density, g/cm3 | 8.2 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.7 |
| Embodied Energy, MJ/kg | 47 | |
| 22 |
| Embodied Water, L/kg | 330 | |
| 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 68 to 100 | |
| 140 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 to 740 | |
| 480 to 560 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 17 | |
| 20 to 28 |
| Strength to Weight: Bending, points | 14 to 17 | |
| 19 to 24 |
| Thermal Diffusivity, mm2/s | 36 | |
| 13 |
| Thermal Shock Resistance, points | 13 to 17 | |
| 19 to 27 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.17 to 0.22 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Copper (Cu), % | 63 to 66 | |
| 0 |
| Iron (Fe), % | 0.1 to 1.0 | |
| 95.8 to 97 |
| Lead (Pb), % | 1.0 to 2.0 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0.1 to 0.5 | |
| 1.7 to 2.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tin (Sn), % | 1.2 to 2.0 | |
| 0 |
| Zinc (Zn), % | 28.1 to 34.6 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |