C43000 Brass vs. C42500 Brass
Both C43000 brass and C42500 brass are copper alloys. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is C43000 brass and the bottom bar is C42500 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 3.0 to 55 | |
| 2.0 to 49 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Rockwell B Hardness | 30 to 100 | |
| 60 to 92 |
| Rockwell Superficial 30T Hardness | 57 to 86 | |
| 32 to 76 |
| Shear Modulus, GPa | 42 | |
| 42 |
| Shear Strength, MPa | 230 to 410 | |
| 220 to 360 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 710 | |
| 310 to 630 |
| Tensile Strength: Yield (Proof), MPa | 130 to 550 | |
| 120 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 180 |
| Melting Completion (Liquidus), °C | 1030 | |
| 1030 |
| Melting Onset (Solidus), °C | 1000 | |
| 1010 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 380 |
| Thermal Conductivity, W/m-K | 120 | |
| 120 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 27 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 28 | |
| 29 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 30 |
| Density, g/cm3 | 8.6 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 46 | |
| 46 |
| Embodied Water, L/kg | 330 | |
| 330 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 20 to 150 | |
| 12 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 82 to 1350 | |
| 64 to 1570 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 10 to 23 | |
| 9.9 to 20 |
| Strength to Weight: Bending, points | 12 to 20 | |
| 12 to 19 |
| Thermal Diffusivity, mm2/s | 36 | |
| 36 |
| Thermal Shock Resistance, points | 11 to 25 | |
| 11 to 22 |
Alloy Composition
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| Copper (Cu), % | 84 to 87 | |
| 87 to 90 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.1 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 | |
| 0 to 0.35 |
| Tin (Sn), % | 1.7 to 2.7 | |
| 1.5 to 3.0 |
| Zinc (Zn), % | 9.7 to 14.3 | |
| 6.1 to 11.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |