EN 1.1221 Steel vs. AISI 403 Stainless Steel
Both EN 1.1221 steel and AISI 403 stainless steel are iron alloys. They have 88% 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 1.1221 steel and the bottom bar is AISI 403 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 250 | |
| 190 to 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 10 to 21 | |
| 16 to 25 |
| Fatigue Strength, MPa | 240 to 340 | |
| 200 to 340 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 76 |
| Shear Strength, MPa | 450 to 520 | |
| 340 to 480 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 870 | |
| 530 to 780 |
| Tensile Strength: Yield (Proof), MPa | 390 to 550 | |
| 280 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 740 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1410 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 48 | |
| 28 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.9 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 6.5 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 1.9 |
| Embodied Energy, MJ/kg | 19 | |
| 27 |
| Embodied Water, L/kg | 47 | |
| 99 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 67 to 130 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 410 to 800 | |
| 210 to 840 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 26 to 31 | |
| 19 to 28 |
| Strength to Weight: Bending, points | 23 to 26 | |
| 19 to 24 |
| Thermal Diffusivity, mm2/s | 13 | |
| 7.6 |
| Thermal Shock Resistance, points | 23 to 28 | |
| 20 to 29 |
Alloy Composition
| Carbon (C), % | 0.57 to 0.65 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 to 0.4 | |
| 11.5 to 13 |
| Iron (Fe), % | 97.1 to 98.8 | |
| 84.7 to 88.5 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 to 0.6 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |