SAE-AISI 1144 Steel vs. EN 1.4005 Stainless Steel
Both SAE-AISI 1144 steel and EN 1.4005 stainless steel are iron alloys. They have 86% 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 1144 steel and the bottom bar is EN 1.4005 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 17 | |
| 13 to 21 |
| Fatigue Strength, MPa | 280 to 430 | |
| 240 to 290 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 76 |
| Shear Strength, MPa | 460 to 510 | |
| 390 to 450 |
| Tensile Strength: Ultimate (UTS), MPa | 750 to 840 | |
| 630 to 750 |
| Tensile Strength: Yield (Proof), MPa | 420 to 690 | |
| 370 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 760 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1440 |
| Melting Onset (Solidus), °C | 1410 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 51 | |
| 30 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 7.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.0 |
| Embodied Energy, MJ/kg | 19 | |
| 28 |
| Embodied Water, L/kg | 47 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 91 to 110 | |
| 90 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 480 to 1290 | |
| 350 to 650 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 27 to 30 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 23 to 25 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 14 | |
| 8.1 |
| Thermal Shock Resistance, points | 22 to 24 | |
| 23 to 27 |
Alloy Composition
| Carbon (C), % | 0.4 to 0.48 | |
| 0.060 to 0.15 |
| Chromium (Cr), % | 0 | |
| 12 to 14 |
| Iron (Fe), % | 97.5 to 98 | |
| 82.4 to 87.8 |
| Manganese (Mn), % | 1.4 to 1.7 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.6 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.24 to 0.33 | |
| 0.15 to 0.35 |