C34500 Brass vs. SAE-AISI 4620 Steel
C34500 brass belongs to the copper alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C34500 brass and the bottom bar is SAE-AISI 4620 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 12 to 28 | |
| 16 to 27 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 220 to 260 | |
| 320 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 430 | |
| 490 to 680 |
| Tensile Strength: Yield (Proof), MPa | 120 to 180 | |
| 350 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 410 |
| Melting Completion (Liquidus), °C | 910 | |
| 1460 |
| Melting Onset (Solidus), °C | 890 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 470 |
| Thermal Conductivity, W/m-K | 120 | |
| 47 |
| Thermal Expansion, µm/m-K | 21 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 3.2 |
| Density, g/cm3 | 8.2 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.6 |
| Embodied Energy, MJ/kg | 45 | |
| 22 |
| Embodied Water, L/kg | 320 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 42 to 75 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 160 | |
| 330 to 800 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 12 to 15 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 13 to 16 | |
| 18 to 22 |
| Thermal Diffusivity, mm2/s | 37 | |
| 13 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 15 to 20 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.17 to 0.22 |
| Copper (Cu), % | 62 to 65 | |
| 0 |
| Iron (Fe), % | 0 to 0.15 | |
| 96.4 to 97.4 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.65 |
| 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), % | 32 to 36.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |