C68000 Brass vs. ASTM B817 Type I
C68000 brass belongs to the copper alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is C68000 brass and the bottom bar is ASTM B817 type I.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 100 |
| Elongation at Break, % | 27 | |
| 4.0 to 13 |
| Poisson's Ratio | 0.3 | |
| 0.32 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 770 to 960 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 700 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 340 |
| Melting Completion (Liquidus), °C | 880 | |
| 1600 |
| Melting Onset (Solidus), °C | 870 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 560 |
| Thermal Conductivity, W/m-K | 96 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 21 | |
| 9.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 36 |
| Density, g/cm3 | 8.0 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 38 |
| Embodied Energy, MJ/kg | 48 | |
| 610 |
| Embodied Water, L/kg | 330 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 | |
| 30 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 95 | |
| 2310 to 3540 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 20 | |
| 35 |
| Strength to Weight: Axial, points | 14 | |
| 48 to 60 |
| Strength to Weight: Bending, points | 15 | |
| 42 to 49 |
| Thermal Diffusivity, mm2/s | 31 | |
| 2.9 |
| Thermal Shock Resistance, points | 13 | |
| 54 to 68 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.010 | |
| 5.5 to 6.8 |
| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Chlorine (Cl), % | 0 | |
| 0 to 0.2 |
| Copper (Cu), % | 56 to 60 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0.25 to 1.3 | |
| 0 to 0.4 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 0.010 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0.2 to 0.8 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Silicon (Si), % | 0.040 to 0.15 | |
| 0 to 0.1 |
| Sodium (Na), % | 0 | |
| 0 to 0.2 |
| Tin (Sn), % | 0.75 to 1.1 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 87 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Zinc (Zn), % | 35.6 to 42.8 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.4 |