EN 1.4594 Stainless Steel vs. EN 1.1221 Steel
Both EN 1.4594 stainless steel and EN 1.1221 steel are iron alloys. They have 77% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4594 stainless steel and the bottom bar is EN 1.1221 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 11 to 17 | |
| 10 to 21 |
| Fatigue Strength, MPa | 490 to 620 | |
| 240 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 72 |
| Shear Strength, MPa | 620 to 700 | |
| 450 to 520 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 to 1170 | |
| 730 to 870 |
| Tensile Strength: Yield (Proof), MPa | 810 to 1140 | |
| 390 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 820 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 48 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 2.1 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 45 | |
| 19 |
| Embodied Water, L/kg | 130 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 67 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1660 to 3320 | |
| 410 to 800 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 36 to 41 | |
| 26 to 31 |
| Strength to Weight: Bending, points | 29 to 31 | |
| 23 to 26 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 13 |
| Thermal Shock Resistance, points | 34 to 39 | |
| 23 to 28 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.57 to 0.65 |
| Chromium (Cr), % | 13 to 15 | |
| 0 to 0.4 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 0 |
| Iron (Fe), % | 72.6 to 79.5 | |
| 97.1 to 98.8 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 1.2 to 2.0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 5.0 to 6.0 | |
| 0 to 0.4 |
| Niobium (Nb), % | 0.15 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.035 |