C46500 Brass vs. C42500 Brass
Both C46500 brass and C42500 brass are copper alloys. They have 70% of their average alloy composition in common.
For each property being compared, the top bar is C46500 brass and the bottom bar is C42500 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 18 to 50 | |
| 2.0 to 49 |
| Poisson's Ratio | 0.31 | |
| 0.33 |
| Rockwell B Hardness | 55 to 95 | |
| 60 to 92 |
| Rockwell Superficial 30T Hardness | 55 to 68 | |
| 32 to 76 |
| Shear Modulus, GPa | 40 | |
| 42 |
| Shear Strength, MPa | 280 to 380 | |
| 220 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 610 | |
| 310 to 630 |
| Tensile Strength: Yield (Proof), MPa | 190 to 490 | |
| 120 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 180 |
| Melting Completion (Liquidus), °C | 900 | |
| 1030 |
| Melting Onset (Solidus), °C | 890 | |
| 1010 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 120 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 29 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 30 |
| Density, g/cm3 | 8.0 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.8 |
| Embodied Energy, MJ/kg | 47 | |
| 46 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 to 160 | |
| 12 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 1170 | |
| 64 to 1570 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 20 | |
| 18 |
| Strength to Weight: Axial, points | 13 to 21 | |
| 9.9 to 20 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 12 to 19 |
| Thermal Diffusivity, mm2/s | 38 | |
| 36 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 11 to 22 |
Alloy Composition
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| Arsenic (As), % | 0.020 to 0.060 | |
| 0 |
| Copper (Cu), % | 59 to 62 | |
| 87 to 90 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.2 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0 to 0.35 |
| Tin (Sn), % | 0.5 to 1.0 | |
| 1.5 to 3.0 |
| Zinc (Zn), % | 36.2 to 40.5 | |
| 6.1 to 11.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |