C27200 Brass vs. SAE-AISI 4340 Steel
C27200 brass belongs to the copper alloys classification, while SAE-AISI 4340 steel belongs to the iron 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 C27200 brass and the bottom bar is SAE-AISI 4340 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 10 to 50 | |
| 12 to 22 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 230 to 320 | |
| 430 to 770 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 590 | |
| 690 to 1280 |
| Tensile Strength: Yield (Proof), MPa | 150 to 410 | |
| 470 to 1150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 430 |
| Melting Completion (Liquidus), °C | 920 | |
| 1460 |
| Melting Onset (Solidus), °C | 870 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 470 |
| Thermal Conductivity, W/m-K | 120 | |
| 44 |
| Thermal Expansion, µm/m-K | 20 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 3.5 |
| Density, g/cm3 | 8.1 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.7 |
| Embodied Energy, MJ/kg | 45 | |
| 22 |
| Embodied Water, L/kg | 320 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 270 | |
| 79 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 810 | |
| 590 to 3490 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 to 20 | |
| 24 to 45 |
| Strength to Weight: Bending, points | 14 to 19 | |
| 22 to 33 |
| Thermal Diffusivity, mm2/s | 37 | |
| 12 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 20 to 38 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 0 | |
| 0.7 to 0.9 |
| Copper (Cu), % | 62 to 65 | |
| 0 |
| Iron (Fe), % | 0 to 0.070 | |
| 95.1 to 96.3 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.6 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 | |
| 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 |
| Zinc (Zn), % | 34.6 to 38 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |