EN 1.4401 Stainless Steel vs. ASTM A387 Grade 11 Steel
Both EN 1.4401 stainless steel and ASTM A387 grade 11 steel are iron alloys. They have 70% 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 1.4401 stainless steel and the bottom bar is ASTM A387 grade 11 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 150 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 40 | |
| 25 |
| Fatigue Strength, MPa | 200 to 320 | |
| 200 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 410 to 550 | |
| 320 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 500 to 600 |
| Tensile Strength: Yield (Proof), MPa | 230 to 570 | |
| 270 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 430 |
| 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 | |
| 39 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 2.9 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 52 | |
| 21 |
| Embodied Water, L/kg | 150 | |
| 53 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 3.1 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 100 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 800 | |
| 200 to 320 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 11 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 15 to 18 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.050 to 0.17 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 1.0 to 1.5 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 96.2 to 97.6 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.4 to 0.65 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0.45 to 0.65 |
| Nickel (Ni), % | 10 to 13 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.5 to 0.8 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |