EN 1.4404 Stainless Steel vs. SAE-AISI 1090 Steel
Both EN 1.4404 stainless steel and SAE-AISI 1090 steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 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 EN 1.4404 stainless steel and the bottom bar is SAE-AISI 1090 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 220 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 43 | |
| 11 |
| Fatigue Strength, MPa | 220 to 320 | |
| 320 to 380 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 72 |
| Shear Strength, MPa | 420 to 550 | |
| 470 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 790 to 950 |
| Tensile Strength: Yield (Proof), MPa | 240 to 570 | |
| 520 to 610 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 240 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 50 |
| Thermal Expansion, µm/m-K | 16 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 52 | |
| 19 |
| Embodied Water, L/kg | 150 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 210 | |
| 82 to 91 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 800 | |
| 730 to 1000 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 28 to 34 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 13 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 25 to 31 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.85 to 1.0 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 0 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 98 to 98.6 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0 |
| Nickel (Ni), % | 10 to 13 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.050 |