Grade FDC Steel vs. SAE-AISI 1055 Steel
Both grade FDC steel and SAE-AISI 1055 steel are iron alloys. Their average alloy composition is basically identical. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is grade FDC steel and the bottom bar is SAE-AISI 1055 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 510 | |
| 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 42 | |
| 34 to 45 |
| Shear Modulus, GPa | 80 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 1680 | |
| 730 to 750 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 18 |
| Embodied Water, L/kg | 47 | |
| 46 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 60 | |
| 26 |
| Strength to Weight: Bending, points | 40 | |
| 23 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 50 | |
| 23 to 24 |
Alloy Composition
| Carbon (C), % | 0.6 to 0.75 | |
| 0.5 to 0.6 |
| Chromium (Cr), % | 0 to 0.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.12 | |
| 0 |
| Iron (Fe), % | 98 to 99.4 | |
| 98.4 to 98.9 |
| Manganese (Mn), % | 0.5 to 1.2 | |
| 0.6 to 0.9 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.1 to 0.35 | |
| 0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.050 |