AISI 309 Stainless Steel vs. Grade 704C Zirconium
AISI 309 stainless steel belongs to the iron alloys classification, while grade 704C zirconium belongs to the otherwise unclassified metals. 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 AISI 309 stainless steel and the bottom bar is grade 704C zirconium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 210 | |
| 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 97 |
| Elongation at Break, % | 34 to 47 | |
| 11 |
| Poisson's Ratio | 0.27 | |
| 0.34 |
| Rockwell B Hardness | 84 | |
| 85 |
| Shear Modulus, GPa | 78 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 710 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 260 to 350 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 270 |
| Thermal Conductivity, W/m-K | 16 | |
| 21 |
| Thermal Expansion, µm/m-K | 15 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 6.7 |
| Embodied Water, L/kg | 170 | |
| 460 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 230 | |
| 48 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 310 | |
| 490 |
| Stiffness to Weight: Axial, points | 14 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 20 |
| Strength to Weight: Bending, points | 20 to 23 | |
| 20 |
| Thermal Diffusivity, mm2/s | 4.3 | |
| 12 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 58 |
Alloy Composition
| Carbon (C), % | 0 to 0.2 | |
| 0 to 0.1 |
| Chromium (Cr), % | 22 to 24 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 58 to 66 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 12 to 15 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.0 to 2.0 |
| Zirconium (Zr), % | 0 | |
| 92.9 to 99 |