C37700 Brass vs. C18100 Copper
Both C37700 brass and C18100 copper are copper alloys. They have 60% of their average alloy composition in common.
For each property being compared, the top bar is C37700 brass and the bottom bar is C18100 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 120 |
| Elongation at Break, % | 40 | |
| 8.3 |
| Poisson's Ratio | 0.31 | |
| 0.34 |
| Rockwell B Hardness | 45 | |
| 80 |
| Shear Modulus, GPa | 39 | |
| 47 |
| Shear Strength, MPa | 270 | |
| 300 |
| Tensile Strength: Ultimate (UTS), MPa | 400 | |
| 510 |
| Tensile Strength: Yield (Proof), MPa | 160 | |
| 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 200 |
| Melting Completion (Liquidus), °C | 890 | |
| 1080 |
| Melting Onset (Solidus), °C | 880 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 320 |
| Thermal Expansion, µm/m-K | 21 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 27 | |
| 80 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 30 | |
| 81 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 31 |
| Density, g/cm3 | 8.1 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.7 |
| Embodied Energy, MJ/kg | 45 | |
| 43 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 40 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 | |
| 900 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 18 |
| Strength to Weight: Axial, points | 14 | |
| 16 |
| Strength to Weight: Bending, points | 15 | |
| 16 |
| Thermal Diffusivity, mm2/s | 39 | |
| 94 |
| Thermal Shock Resistance, points | 13 | |
| 18 |
Alloy Composition
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| Chromium (Cr), % | 0 | |
| 0.4 to 1.2 |
| Copper (Cu), % | 58 to 61 | |
| 98.7 to 99.49 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 0.030 to 0.060 |
| Zinc (Zn), % | 35.7 to 40.5 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.080 to 0.2 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |