AISI 301 Stainless Steel vs. SAE-AISI 5140 Steel
Both AISI 301 stainless steel and SAE-AISI 5140 steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is AISI 301 stainless steel and the bottom bar is SAE-AISI 5140 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 440 | |
| 170 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 7.4 to 46 | |
| 12 to 29 |
| Fatigue Strength, MPa | 210 to 600 | |
| 220 to 570 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 410 to 860 | |
| 360 to 600 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 1460 | |
| 560 to 970 |
| Tensile Strength: Yield (Proof), MPa | 230 to 1080 | |
| 290 to 840 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 840 | |
| 420 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 45 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 2.1 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.4 |
| Embodied Energy, MJ/kg | 39 | |
| 19 |
| Embodied Water, L/kg | 130 | |
| 49 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 to 300 | |
| 76 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 2970 | |
| 220 to 1880 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 52 | |
| 20 to 34 |
| Strength to Weight: Bending, points | 20 to 37 | |
| 19 to 28 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 12 |
| Thermal Shock Resistance, points | 12 to 31 | |
| 16 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 16 to 18 | |
| 0.7 to 0.9 |
| Iron (Fe), % | 70.7 to 78 | |
| 97.3 to 98.1 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.7 to 0.9 |
| Nickel (Ni), % | 6.0 to 8.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.040 |