C37100 Brass vs. Nuclear Grade Hafnium
C37100 brass belongs to the copper alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is C37100 brass and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 78 |
| Elongation at Break, % | 8.0 to 40 | |
| 25 |
| Poisson's Ratio | 0.31 | |
| 0.26 |
| Shear Modulus, GPa | 40 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 520 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 150 to 390 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 140 |
| Thermal Expansion, µm/m-K | 21 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.0 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 38 to 120 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 750 | |
| 180 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 20 | |
| 11 |
| Strength to Weight: Axial, points | 13 to 18 | |
| 7.4 |
| Strength to Weight: Bending, points | 14 to 18 | |
| 8.4 |
| Thermal Shock Resistance, points | 12 to 17 | |
| 55 |
Alloy Composition
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| Copper (Cu), % | 58 to 62 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 |
| Lead (Pb), % | 0.6 to 1.2 | |
| 0 |
| Zinc (Zn), % | 36.3 to 41.4 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.23 |