C43500 Brass vs. SAE-AISI 4340M Steel
C43500 brass belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 29 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 C43500 brass and the bottom bar is SAE-AISI 4340M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 8.5 to 46 | |
| 6.0 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 42 | |
| 72 |
| Shear Strength, MPa | 220 to 310 | |
| 1360 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 530 | |
| 2340 |
| Tensile Strength: Yield (Proof), MPa | 120 to 480 | |
| 1240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 430 |
| Melting Completion (Liquidus), °C | 1000 | |
| 1440 |
| Melting Onset (Solidus), °C | 970 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 480 |
| Thermal Conductivity, W/m-K | 120 | |
| 38 |
| Thermal Expansion, µm/m-K | 19 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 7.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 30 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 3.9 |
| Density, g/cm3 | 8.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.9 |
| Embodied Energy, MJ/kg | 45 | |
| 26 |
| Embodied Water, L/kg | 320 | |
| 55 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 to 120 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 65 to 1040 | |
| 4120 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 25 |
| Strength to Weight: Axial, points | 10 to 17 | |
| 84 |
| Strength to Weight: Bending, points | 12 to 17 | |
| 51 |
| Thermal Diffusivity, mm2/s | 37 | |
| 10 |
| Thermal Shock Resistance, points | 11 to 18 | |
| 70 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 0 | |
| 0.7 to 1.0 |
| Copper (Cu), % | 79 to 83 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 93.3 to 94.8 |
| Lead (Pb), % | 0 to 0.090 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.65 to 0.9 |
| Molybdenum (Mo), % | 0 | |
| 0.35 to 0.45 |
| Nickel (Ni), % | 0 | |
| 1.7 to 2.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.012 |
| Silicon (Si), % | 0 | |
| 1.5 to 1.8 |
| Sulfur (S), % | 0 | |
| 0 to 0.012 |
| Tin (Sn), % | 0.6 to 1.2 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.050 to 0.1 |
| Zinc (Zn), % | 15.4 to 20.4 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |