AISI 303 Stainless Steel vs. Grade 705C Zirconium
AISI 303 stainless steel belongs to the iron alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is grade 705C zirconium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 210 | |
| 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 98 |
| Elongation at Break, % | 40 to 51 | |
| 13 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 77 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 690 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 230 to 420 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 270 |
| Thermal Conductivity, W/m-K | 16 | |
| 18 |
| Thermal Expansion, µm/m-K | 17 | |
| 5.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 6.7 |
| Embodied Water, L/kg | 140 | |
| 450 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 240 | |
| 66 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 440 | |
| 790 |
| Stiffness to Weight: Axial, points | 14 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 22 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 22 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 9.9 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 69 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.1 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 67.3 to 74.9 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 8.0 to 10 | |
| 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 0.2 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0.15 to 0.35 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 91.9 to 98 |