R05255 Alloy vs. C37100 Brass
R05255 alloy belongs to the otherwise unclassified metals classification, while C37100 brass belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is R05255 alloy and the bottom bar is C37100 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 100 |
| Elongation at Break, % | 20 | |
| 8.0 to 40 |
| Poisson's Ratio | 0.34 | |
| 0.31 |
| Shear Modulus, GPa | 70 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 370 to 520 |
| Tensile Strength: Yield (Proof), MPa | 450 | |
| 150 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 170 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 380 |
| Thermal Conductivity, W/m-K | 59 | |
| 120 |
| Thermal Expansion, µm/m-K | 6.6 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.0 |
| Embodied Water, L/kg | 630 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 38 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 530 | |
| 110 to 750 |
| Stiffness to Weight: Axial, points | 6.3 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 11 | |
| 20 |
| Strength to Weight: Axial, points | 9.1 | |
| 13 to 18 |
| Strength to Weight: Bending, points | 8.9 | |
| 14 to 18 |
| Thermal Diffusivity, mm2/s | 25 | |
| 39 |
| Thermal Shock Resistance, points | 31 | |
| 12 to 17 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 |
| Copper (Cu), % | 0 | |
| 58 to 62 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 0.15 |
| Lead (Pb), % | 0 | |
| 0.6 to 1.2 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Oxygen (O), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 |
| Tantalum (Ta), % | 95.9 to 98 | |
| 0 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Tungsten (W), % | 2.0 to 3.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 36.3 to 41.4 |
| Residuals, % | 0 | |
| 0 to 0.4 |