C21000 Brass vs. Grade 705C Zirconium
C21000 brass belongs to the copper alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is C21000 brass and the bottom bar is grade 705C zirconium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 98 |
| Elongation at Break, % | 2.9 to 50 | |
| 13 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell B Hardness | 36 to 73 | |
| 87 |
| Shear Modulus, GPa | 43 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 450 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 69 to 440 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 270 |
| Thermal Conductivity, W/m-K | 230 | |
| 18 |
| Thermal Expansion, µm/m-K | 18 | |
| 5.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 6.7 |
| Embodied Water, L/kg | 310 | |
| 450 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 66 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 21 to 830 | |
| 790 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 18 | |
| 23 |
| Strength to Weight: Axial, points | 7.4 to 14 | |
| 22 |
| Strength to Weight: Bending, points | 9.6 to 15 | |
| 22 |
| Thermal Diffusivity, mm2/s | 69 | |
| 9.9 |
| Thermal Shock Resistance, points | 8.1 to 15 | |
| 69 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Copper (Cu), % | 94 to 96 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.3 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Niobium (Nb), % | 0 | |
| 2.0 to 3.0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Zinc (Zn), % | 3.7 to 6.0 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 91.9 to 98 |
| Residuals, % | 0 to 0.2 | |
| 0 |