AISI 309 Stainless Steel vs. EN 1.1122 Steel
Both AISI 309 stainless steel and EN 1.1122 steel are iron alloys. They have 63% 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 AISI 309 stainless steel and the bottom bar is EN 1.1122 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 210 | |
| 100 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 to 47 | |
| 12 to 21 |
| Fatigue Strength, MPa | 250 to 280 | |
| 170 to 260 |
| Poisson's Ratio | 0.27 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 420 to 470 | |
| 240 to 290 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 710 | |
| 340 to 460 |
| Tensile Strength: Yield (Proof), MPa | 260 to 350 | |
| 240 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 51 |
| Thermal Expansion, µm/m-K | 15 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 51 | |
| 18 |
| Embodied Water, L/kg | 170 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 230 | |
| 36 to 89 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 310 | |
| 160 to 360 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 12 to 16 |
| Strength to Weight: Bending, points | 20 to 23 | |
| 14 to 17 |
| Thermal Diffusivity, mm2/s | 4.3 | |
| 14 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 11 to 15 |
Alloy Composition
| Carbon (C), % | 0 to 0.2 | |
| 0.080 to 0.12 |
| Chromium (Cr), % | 22 to 24 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 58 to 66 | |
| 98.7 to 99.62 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.3 to 0.6 |
| Nickel (Ni), % | 12 to 15 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |