EN 1.4640 Stainless Steel vs. Grade FDC Steel
Both EN 1.4640 stainless steel and grade FDC steel are iron alloys. They have 72% of their average alloy composition in common. There are 25 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 1.4640 stainless steel and the bottom bar is grade FDC steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 200 | |
| 510 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 650 | |
| 1680 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 400 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 51 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 1.9 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 40 | |
| 19 |
| Embodied Water, L/kg | 150 | |
| 47 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 23 | |
| 60 |
| Strength to Weight: Bending, points | 21 | |
| 40 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 14 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 50 |
Alloy Composition
| Carbon (C), % | 0.030 to 0.080 | |
| 0.6 to 0.75 |
| Chromium (Cr), % | 18 to 19 | |
| 0 to 0.3 |
| Copper (Cu), % | 1.3 to 2.0 | |
| 0 to 0.12 |
| Iron (Fe), % | 67.4 to 73.6 | |
| 98 to 99.4 |
| Manganese (Mn), % | 1.5 to 4.0 | |
| 0.5 to 1.2 |
| Nickel (Ni), % | 5.5 to 6.9 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.11 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.1 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |