R60705 Alloy vs. EN 1.6579 Steel
R60705 alloy belongs to the otherwise unclassified metals classification, while EN 1.6579 steel belongs to the iron alloys. 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 R60705 alloy and the bottom bar is EN 1.6579 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 190 |
| Elongation at Break, % | 18 | |
| 11 to 14 |
| Fatigue Strength, MPa | 290 | |
| 380 to 570 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 37 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 850 to 980 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 600 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 |
| Thermal Conductivity, W/m-K | 17 | |
| 39 |
| Thermal Expansion, µm/m-K | 6.3 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 7.8 |
| Embodied Water, L/kg | 450 | |
| 56 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 | |
| 950 to 2210 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 30 to 35 |
| Strength to Weight: Bending, points | 22 | |
| 25 to 28 |
| Thermal Diffusivity, mm2/s | 9.5 | |
| 11 |
| Thermal Shock Resistance, points | 63 | |
| 25 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.32 to 0.38 |
| Chromium (Cr), % | 0 to 0.2 | |
| 1.4 to 1.7 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 94.2 to 96.1 |
| Manganese (Mn), % | 0 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.35 |
| Nickel (Ni), % | 0 | |
| 1.4 to 1.7 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.025 | |
| 0 |
| Oxygen (O), % | 0 to 0.18 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zirconium (Zr), % | 91 to 98 | |
| 0 |