EN 1.7239 Steel vs. AISI 309H Stainless Steel
Both EN 1.7239 steel and AISI 309H stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is EN 1.7239 steel and the bottom bar is AISI 309H stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 480 | |
| 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 73 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 1990 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1410 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 44 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 19 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.6 |
| Embodied Energy, MJ/kg | 20 | |
| 51 |
| Embodied Water, L/kg | 50 | |
| 170 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 23 to 71 | |
| 21 |
| Strength to Weight: Bending, points | 21 to 45 | |
| 20 |
| Thermal Diffusivity, mm2/s | 12 | |
| 4.0 |
| Thermal Shock Resistance, points | 19 to 59 | |
| 13 |
Alloy Composition
| Carbon (C), % | 0.56 to 0.64 | |
| 0.040 to 0.1 |
| Chromium (Cr), % | 0.7 to 1.0 | |
| 22 to 24 |
| Iron (Fe), % | 96.8 to 98 | |
| 58.1 to 66 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.060 to 0.15 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 12 to 15 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |