S21800 Stainless Steel vs. ASTM A299 Steel
Both S21800 stainless steel and ASTM A299 steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is S21800 stainless steel and the bottom bar is ASTM A299 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 | |
| 180 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 40 | |
| 21 to 22 |
| Fatigue Strength, MPa | 330 | |
| 230 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 510 | |
| 370 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 740 | |
| 590 to 620 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 330 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 340 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 400 |
| Melting Completion (Liquidus), °C | 1360 | |
| 1460 |
| Melting Onset (Solidus), °C | 1310 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 470 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 1.9 |
| Density, g/cm3 | 7.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.1 | |
| 1.4 |
| Embodied Energy, MJ/kg | 45 | |
| 19 |
| Embodied Water, L/kg | 150 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 390 | |
| 290 to 350 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 26 | |
| 24 |
| Strength to Weight: Axial, points | 27 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 24 | |
| 20 to 21 |
| Thermal Shock Resistance, points | 17 | |
| 17 to 18 |