AISI 321 Stainless Steel vs. Chromium 33
AISI 321 stainless steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have 62% of their average alloy composition in common. There are 21 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 321 stainless steel and the bottom bar is chromium 33.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 34 to 50 | |
| 45 |
| Poisson's Ratio | 0.28 | |
| 0.27 |
| Shear Modulus, GPa | 77 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 690 | |
| 850 |
| Tensile Strength: Yield (Proof), MPa | 220 to 350 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 6.0 |
| Embodied Energy, MJ/kg | 45 | |
| 84 |
| Embodied Water, L/kg | 140 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 230 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 310 | |
| 450 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 30 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 25 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.015 |
| Chromium (Cr), % | 17 to 19 | |
| 31 to 35 |
| Copper (Cu), % | 0 | |
| 0.3 to 1.2 |
| Iron (Fe), % | 65.3 to 74 | |
| 25.7 to 37.9 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 2.0 |
| Nickel (Ni), % | 9.0 to 12 | |
| 30 to 33 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0.35 to 0.6 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 to 0.7 | |
| 0 |