H03 C10700 Copper vs. H03 C21000 Brass
Both H03 C10700 copper and H03 C21000 brass are copper alloys. Both are furnished in the H03 (3/4 hard) temper. They have a very high 95% of their average alloy composition in common. There are 30 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 H03 C10700 copper and the bottom bar is H03 C21000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 6.0 | |
| 12 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell Superficial 30T Hardness | 53 | |
| 57 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 180 | |
| 210 |
| Tensile Strength: Ultimate (UTS), MPa | 320 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 300 | |
| 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 190 |
| Melting Completion (Liquidus), °C | 1080 | |
| 1070 |
| Melting Onset (Solidus), °C | 1080 | |
| 1050 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 390 | |
| 230 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 100 | |
| 56 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 57 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 35 | |
| 30 |
| Density, g/cm3 | 9.0 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 42 | |
| 42 |
| Embodied Water, L/kg | 390 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 | |
| 40 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 390 | |
| 480 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 18 | |
| 18 |
| Strength to Weight: Axial, points | 9.8 | |
| 11 |
| Strength to Weight: Bending, points | 11 | |
| 12 |
| Thermal Diffusivity, mm2/s | 110 | |
| 69 |
| Thermal Shock Resistance, points | 11 | |
| 12 |
Alloy Composition
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| Copper (Cu), % | 99.83 to 99.915 | |
| 94 to 96 |
| Iron (Fe), % | 0 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 to 0.0010 | |
| 0 |
| Silver (Ag), % | 0.085 to 0.12 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 3.7 to 6.0 |
| Residuals, % | 0 to 0.050 | |
| 0 to 0.2 |