Hot Rolled SAE-AISI 1040 vs. Hot Rolled S20910 Stainless Steel
Both hot rolled SAE-AISI 1040 and hot rolled S20910 stainless steel are iron alloys. Both are furnished in the hot worked condition. They have 58% 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 hot rolled SAE-AISI 1040 and the bottom bar is hot rolled S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 | |
| 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 | |
| 23 |
| Fatigue Strength, MPa | 220 | |
| 310 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Reduction in Area, % | 45 | |
| 56 |
| Shear Modulus, GPa | 73 | |
| 79 |
| Shear Strength, MPa | 350 | |
| 500 |
| Tensile Strength: Ultimate (UTS), MPa | 570 | |
| 790 |
| Tensile Strength: Yield (Proof), MPa | 320 | |
| 460 |
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 | 1.8 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 4.8 |
| Embodied Energy, MJ/kg | 18 | |
| 68 |
| Embodied Water, L/kg | 46 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 96 | |
| 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 270 | |
| 540 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 20 | |
| 28 |
| Strength to Weight: Bending, points | 19 | |
| 24 |
| Thermal Diffusivity, mm2/s | 14 | |
| 3.6 |
| Thermal Shock Resistance, points | 18 | |
| 18 |
Alloy Composition
| Carbon (C), % | 0.37 to 0.44 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 | |
| 20.5 to 23.5 |
| Iron (Fe), % | 98.6 to 99.03 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 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 to 0.050 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |