R60705 Alloy vs. ACI-ASTM CB7Cu-1 Steel
R60705 alloy belongs to the otherwise unclassified metals classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is R60705 alloy and the bottom bar is ACI-ASTM CB7Cu-1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 190 |
| Elongation at Break, % | 18 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 290 | |
| 420 to 590 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 37 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 17 |
| Thermal Expansion, µm/m-K | 6.3 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 7.8 |
| Embodied Water, L/kg | 450 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 | |
| 1500 to 3590 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 22 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 22 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 9.5 | |
| 4.6 |
| Thermal Shock Resistance, points | 63 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0 to 0.2 | |
| 15.5 to 17.7 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 72.3 to 78.4 |
| Manganese (Mn), % | 0 | |
| 0 to 0.7 |
| Nickel (Ni), % | 0 | |
| 3.6 to 4.6 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 to 0.025 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 to 0.18 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zirconium (Zr), % | 91 to 98 | |
| 0 |