SAE-AISI 5140 Steel vs. EN 1.4305 Stainless Steel
Both SAE-AISI 5140 steel and EN 1.4305 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is EN 1.4305 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 290 | |
| 200 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 12 to 29 | |
| 14 to 40 |
| Fatigue Strength, MPa | 220 to 570 | |
| 190 to 330 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 360 to 600 | |
| 420 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 560 to 970 | |
| 610 to 900 |
| Tensile Strength: Yield (Proof), MPa | 290 to 840 | |
| 220 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 930 |
| 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 | 45 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.0 |
| Embodied Energy, MJ/kg | 19 | |
| 42 |
| Embodied Water, L/kg | 49 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 76 to 180 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 to 1880 | |
| 120 to 830 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 20 to 34 | |
| 22 to 32 |
| Strength to Weight: Bending, points | 19 to 28 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 12 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 to 29 | |
| 14 to 20 |
Alloy Composition
| Carbon (C), % | 0.38 to 0.43 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0.7 to 0.9 | |
| 17 to 19 |
| Copper (Cu), % | 0 | |
| 0 to 1.0 |
| Iron (Fe), % | 97.3 to 98.1 | |
| 66.4 to 74.9 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 8.0 to 10 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0.15 to 0.35 |