SAE-AISI 1090 Steel vs. EN 1.4378 Stainless Steel
Both SAE-AISI 1090 steel and EN 1.4378 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1090 steel and the bottom bar is EN 1.4378 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 280 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 | |
| 14 to 34 |
| Fatigue Strength, MPa | 320 to 380 | |
| 340 to 550 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 77 |
| Shear Strength, MPa | 470 to 570 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 950 | |
| 760 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 520 to 610 | |
| 430 to 970 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 910 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1390 |
| Melting Onset (Solidus), °C | 1410 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Expansion, µm/m-K | 12 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.7 |
| Embodied Energy, MJ/kg | 19 | |
| 39 |
| Embodied Water, L/kg | 46 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 to 91 | |
| 150 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 730 to 1000 | |
| 470 to 2370 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 34 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 24 to 31 |
| Thermal Shock Resistance, points | 25 to 31 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0.85 to 1.0 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17 to 19 |
| Iron (Fe), % | 98 to 98.6 | |
| 61.2 to 69 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 11.5 to 14.5 |
| Nickel (Ni), % | 0 | |
| 2.3 to 3.7 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.030 |