SAE-AISI 1141 Steel vs. S20910 Stainless Steel
Both SAE-AISI 1141 steel and S20910 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1141 steel and the bottom bar is S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 220 | |
| 230 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 14 to 39 |
| Fatigue Strength, MPa | 270 to 430 | |
| 310 to 460 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Reduction in Area, % | 34 to 39 | |
| 56 to 62 |
| Shear Modulus, GPa | 72 | |
| 79 |
| Shear Strength, MPa | 460 to 480 | |
| 500 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 810 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 400 to 700 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 51 | |
| 13 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 4.8 |
| Embodied Energy, MJ/kg | 19 | |
| 68 |
| Embodied Water, L/kg | 47 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 110 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 430 to 1290 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 26 to 29 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 23 to 25 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 14 | |
| 3.6 |
| Thermal Shock Resistance, points | 24 to 26 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0.37 to 0.45 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 | |
| 20.5 to 23.5 |
| Iron (Fe), % | 97.7 to 98.2 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 1.4 to 1.7 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 0 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0.080 to 0.13 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |