Grade 705C Zirconium vs. EN 1.7366 Steel
Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7366 steel belongs to the iron alloys. There are 21 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 grade 705C zirconium and the bottom bar is EN 1.7366 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 | |
| 140 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 190 |
| Elongation at Break, % | 13 | |
| 17 to 19 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 36 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 460 to 710 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 230 to 480 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 |
| Thermal Conductivity, W/m-K | 18 | |
| 40 |
| Thermal Expansion, µm/m-K | 5.7 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 7.8 |
| Embodied Water, L/kg | 450 | |
| 69 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 66 | |
| 74 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 790 | |
| 140 to 600 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 22 | |
| 16 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 17 to 23 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 11 |
| Thermal Shock Resistance, points | 69 | |
| 13 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.18 |
| Chromium (Cr), % | 0 | |
| 4.0 to 6.0 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 91.9 to 95.3 |
| Manganese (Mn), % | 0 | |
| 0.3 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.45 to 0.65 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Zirconium (Zr), % | 91.9 to 98 | |
| 0 |