SAE-AISI 6150 Steel vs. AISI 440B Stainless Steel
Both SAE-AISI 6150 steel and AISI 440B stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 29 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 6150 steel and the bottom bar is AISI 440B stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 15 to 23 | |
| 3.0 to 18 |
| Fatigue Strength, MPa | 300 to 750 | |
| 260 to 850 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 400 to 730 | |
| 460 to 1110 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 1200 | |
| 740 to 1930 |
| Tensile Strength: Yield (Proof), MPa | 420 to 1160 | |
| 430 to 1860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 870 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1480 |
| Melting Onset (Solidus), °C | 1410 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 46 | |
| 23 |
| Thermal Expansion, µm/m-K | 12 to 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 9.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.2 |
| Embodied Energy, MJ/kg | 28 | |
| 31 |
| Embodied Water, L/kg | 51 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 180 | |
| 57 to 110 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 43 | |
| 27 to 70 |
| Strength to Weight: Bending, points | 21 to 32 | |
| 24 to 45 |
| Thermal Diffusivity, mm2/s | 13 | |
| 6.1 |
| Thermal Shock Resistance, points | 20 to 38 | |
| 27 to 70 |
Alloy Composition
| Carbon (C), % | 0.48 to 0.53 | |
| 0.75 to 1.0 |
| Chromium (Cr), % | 0.8 to 1.1 | |
| 16 to 18 |
| Iron (Fe), % | 96.7 to 97.7 | |
| 78.2 to 83.3 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.75 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.015 |
| Vanadium (V), % | 0.15 to 0.3 | |
| 0 |