Annealed S21904 Stainless Steel vs. Annealed K93050 Alloy
Both annealed S21904 stainless steel and annealed K93050 alloy are iron alloys. Both are furnished in the annealed condition. They have 70% of their average alloy composition in common. 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 annealed S21904 stainless steel and the bottom bar is annealed K93050 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.3 |
| Shear Modulus, GPa | 78 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 700 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 270 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1430 |
| Melting Onset (Solidus), °C | 1350 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 26 |
| Density, g/cm3 | 7.7 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 4.7 |
| Embodied Energy, MJ/kg | 43 | |
| 65 |
| Embodied Water, L/kg | 160 | |
| 120 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 | |
| 240 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 25 | |
| 17 |
| Strength to Weight: Bending, points | 23 | |
| 17 |
| Thermal Shock Resistance, points | 15 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.040 | |
| 0 to 0.15 |
| Chromium (Cr), % | 19 to 21.5 | |
| 0 to 0.25 |
| Cobalt (Co), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 59.5 to 67.4 | |
| 61.4 to 63.9 |
| Manganese (Mn), % | 8.0 to 10 | |
| 0 to 1.0 |
| Nickel (Ni), % | 5.5 to 7.5 | |
| 36 |
| Nitrogen (N), % | 0.15 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.020 |
| Selenium (Se), % | 0 | |
| 0.15 to 0.3 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |