Grade 705C Zirconium vs. EN 1.6771 Steel
Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.6771 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.6771 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 | |
| 280 to 350 |
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 190 |
| Elongation at Break, % | 13 | |
| 8.0 to 8.7 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 36 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 930 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 740 to 1140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 |
| Thermal Conductivity, W/m-K | 18 | |
| 46 |
| Thermal Expansion, µm/m-K | 5.7 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 7.9 |
| Embodied Water, L/kg | 450 | |
| 58 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 66 | |
| 75 to 93 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 790 | |
| 1460 to 3450 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 33 to 41 |
| Strength to Weight: Bending, points | 22 | |
| 27 to 31 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 13 |
| Thermal Shock Resistance, points | 69 | |
| 27 to 35 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0.27 to 0.33 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.2 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 92.2 to 95 |
| Manganese (Mn), % | 0 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.3 to 0.6 |
| Nickel (Ni), % | 0 | |
| 3.0 to 4.0 |
| 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 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Zirconium (Zr), % | 91.9 to 98 | |
| 0 |