EN 1.7321 Steel vs. Grade 705C Zirconium
EN 1.7321 steel belongs to the iron alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 17 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 EN 1.7321 steel and the bottom bar is grade 705C zirconium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 170 | |
| 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 98 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 73 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 1460 | |
| 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 270 |
| Thermal Conductivity, W/m-K | 45 | |
| 18 |
| Thermal Expansion, µm/m-K | 13 | |
| 5.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 6.7 |
| Embodied Water, L/kg | 50 | |
| 450 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 17 to 52 | |
| 22 |
| Strength to Weight: Bending, points | 18 to 36 | |
| 22 |
| Thermal Diffusivity, mm2/s | 12 | |
| 9.9 |
| Thermal Shock Resistance, points | 14 to 43 | |
| 69 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.23 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0.3 to 0.6 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 97.1 to 98.4 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0.4 to 0.5 | |
| 0 |
| Niobium (Nb), % | 0 | |
| 2.0 to 3.0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 91.9 to 98 |