Grade 705C Zirconium vs. S44725 Stainless Steel
Grade 705C zirconium belongs to the otherwise unclassified metals classification, while S44725 stainless steel belongs to the iron alloys. There are 22 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 S44725 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 | |
180 |
Elastic (Young's, Tensile) Modulus, GPa | 98 | |
200 |
Elongation at Break, % | 13 | |
22 |
Poisson's Ratio | 0.34 | |
0.27 |
Rockwell B Hardness | 87 | |
84 |
Shear Modulus, GPa | 36 | |
81 |
Tensile Strength: Ultimate (UTS), MPa | 540 | |
500 |
Tensile Strength: Yield (Proof), MPa | 390 | |
310 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
290 |
Specific Heat Capacity, J/kg-K | 270 | |
480 |
Thermal Conductivity, W/m-K | 18 | |
17 |
Thermal Expansion, µm/m-K | 5.7 | |
11 |
Otherwise Unclassified Properties
Density, g/cm3 | 6.7 | |
7.7 |
Embodied Water, L/kg | 450 | |
170 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 66 | |
99 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 790 | |
240 |
Stiffness to Weight: Axial, points | 8.1 | |
15 |
Stiffness to Weight: Bending, points | 23 | |
25 |
Strength to Weight: Axial, points | 22 | |
18 |
Strength to Weight: Bending, points | 22 | |
18 |
Thermal Diffusivity, mm2/s | 9.9 | |
4.6 |
Thermal Shock Resistance, points | 69 | |
16 |
Alloy Composition
Carbon (C), % | 0 to 0.1 | |
0 to 0.015 |
Chromium (Cr), % | 0 | |
25 to 28.5 |
Hafnium (Hf), % | 0 to 4.5 | |
0 |
Hydrogen (H), % | 0 to 0.0050 | |
0 |
Iron (Fe), % | 0 to 0.3 | |
67.6 to 73.5 |
Manganese (Mn), % | 0 | |
0 to 0.4 |
Molybdenum (Mo), % | 0 | |
1.5 to 2.5 |
Nickel (Ni), % | 0 | |
0 to 0.3 |
Niobium (Nb), % | 2.0 to 3.0 | |
0 to 0.26 |
Nitrogen (N), % | 0 to 0.030 | |
0 to 0.018 |
Oxygen (O), % | 0 to 0.3 | |
0 |
Phosphorus (P), % | 0 to 0.010 | |
0 to 0.040 |
Silicon (Si), % | 0 | |
0 to 0.040 |
Sulfur (S), % | 0 | |
0 to 0.020 |
Titanium (Ti), % | 0 | |
0 to 0.26 |
Zirconium (Zr), % | 91.9 to 98 | |
0 |