EN 1.4874 Stainless Steel vs. EN 1.7218 Steel
Both EN 1.4874 stainless steel and EN 1.7218 steel are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 1.4874 stainless steel and the bottom bar is EN 1.7218 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 | |
| 150 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 80 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 480 | |
| 500 to 1550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1150 | |
| 420 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 44 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 70 | |
| 2.6 |
| Density, g/cm3 | 8.4 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 7.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 110 | |
| 20 |
| Embodied Water, L/kg | 290 | |
| 52 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 | |
| 18 to 55 |
| Strength to Weight: Bending, points | 16 | |
| 18 to 38 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 12 |
| Thermal Shock Resistance, points | 11 | |
| 15 to 46 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.040 |
| Carbon (C), % | 0.35 to 0.65 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 19 to 22 | |
| 0.9 to 1.2 |
| Cobalt (Co), % | 18.5 to 22 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 23 to 38.9 | |
| 96.2 to 98.1 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 2.5 to 3.0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 18 to 22 | |
| 0 to 0.3 |
| Niobium (Nb), % | 0.75 to 1.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.035 |
| Tungsten (W), % | 2.0 to 3.0 | |
| 0 |