EN 1.4404 Stainless Steel vs. EN 1.1181 Steel
Both EN 1.4404 stainless steel and EN 1.1181 steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 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 EN 1.4404 stainless steel and the bottom bar is EN 1.1181 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 43 | |
| 19 to 20 |
| Fatigue Strength, MPa | 220 to 320 | |
| 190 to 260 |
| Impact Strength: V-Notched Charpy, J | 91 to 93 | |
| 23 to 38 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 420 to 550 | |
| 350 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 560 to 620 |
| Tensile Strength: Yield (Proof), MPa | 240 to 570 | |
| 280 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 42 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 2.1 |
| 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 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 210 | |
| 90 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 800 | |
| 210 to 380 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 20 to 22 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 19 to 21 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 11 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 19 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.32 to 0.39 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 0 to 0.4 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 97.4 to 99.18 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0 to 0.1 |
| Nickel (Ni), % | 10 to 13 | |
| 0 to 0.4 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.035 |