Grade 705C Zirconium vs. ASTM Grade LCA Steel
Grade 705C zirconium belongs to the otherwise unclassified metals classification, while ASTM grade LCA steel belongs to the iron alloys. There are 20 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 ASTM grade LCA steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 190 |
| Elongation at Break, % | 13 | |
| 27 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 36 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 |
| Thermal Conductivity, W/m-K | 18 | |
| 49 |
| Thermal Expansion, µm/m-K | 5.7 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 7.8 |
| Embodied Water, L/kg | 450 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 66 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 790 | |
| 150 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 18 |
| Strength to Weight: Bending, points | 22 | |
| 18 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 14 |
| Thermal Shock Resistance, points | 69 | |
| 16 |
Alloy Composition
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| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.25 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 96.9 to 100 |
| Manganese (Mn), % | 0 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.2 |
| 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 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.045 |
| Zirconium (Zr), % | 91.9 to 98 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 1.0 |