EN 1.7244 Steel vs. AISI 321H Stainless Steel
Both EN 1.7244 steel and AISI 321H stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is EN 1.7244 steel and the bottom bar is AISI 321H stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 180 | |
| 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Reduction in Area, % | 65 to 67 | |
| 51 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 1390 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 940 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 44 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.5 | |
| 16 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 3.2 |
| Embodied Energy, MJ/kg | 20 | |
| 46 |
| Embodied Water, L/kg | 51 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 49 | |
| 21 |
| Strength to Weight: Bending, points | 17 to 35 | |
| 20 |
| Thermal Diffusivity, mm2/s | 12 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 41 | |
| 12 |
Alloy Composition
| Carbon (C), % | 0.15 to 0.21 | |
| 0.040 to 0.1 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 17 to 19 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 96.8 to 98.2 | |
| 65.4 to 74 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 9.0 to 12 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.75 |
| Sulfur (S), % | 0.020 to 0.040 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 | |
| 0 to 0.7 |