C41500 Brass vs. C68800 Brass
Both C41500 brass and C68800 brass are copper alloys. They have 80% of their average alloy composition in common.
For each property being compared, the top bar is C41500 brass and the bottom bar is C68800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 2.0 to 42 | |
| 2.0 to 36 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Rockwell B Hardness | 62 to 90 | |
| 81 to 99 |
| Rockwell Superficial 30T Hardness | 36 to 75 | |
| 71 to 83 |
| Shear Modulus, GPa | 42 | |
| 41 |
| Shear Strength, MPa | 220 to 360 | |
| 380 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 560 | |
| 570 to 890 |
| Tensile Strength: Yield (Proof), MPa | 190 to 550 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 160 |
| Melting Completion (Liquidus), °C | 1030 | |
| 960 |
| Melting Onset (Solidus), °C | 1010 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 400 |
| Thermal Conductivity, W/m-K | 120 | |
| 40 |
| Thermal Expansion, µm/m-K | 18 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 26 |
| Density, g/cm3 | 8.7 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 330 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 11 to 120 | |
| 16 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1340 | |
| 710 to 2860 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 11 to 18 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 12 to 17 | |
| 19 to 25 |
| Thermal Diffusivity, mm2/s | 37 | |
| 12 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 19 to 30 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 3.0 to 3.8 |
| Cobalt (Co), % | 0 | |
| 0.25 to 0.55 |
| Copper (Cu), % | 89 to 93 | |
| 70.8 to 75.5 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.1 | |
| 0 to 0.050 |
| Tin (Sn), % | 1.5 to 2.2 | |
| 0 |
| Zinc (Zn), % | 4.2 to 9.5 | |
| 21.3 to 24.1 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |