EN 1.7117 Steel vs. ACI-ASTM CB7Cu-2 Steel
Both EN 1.7117 steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 79% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is EN 1.7117 steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 480 | |
| 300 to 420 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 1930 | |
| 960 to 1350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1430 |
| Melting Onset (Solidus), °C | 1400 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 43 | |
| 17 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 2.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.6 | |
| 13 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 2.6 |
| Embodied Energy, MJ/kg | 21 | |
| 38 |
| Embodied Water, L/kg | 51 | |
| 130 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 24 to 69 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 22 to 44 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 12 | |
| 4.6 |
| Thermal Shock Resistance, points | 20 to 58 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0.49 to 0.56 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0.7 to 1.0 | |
| 14 to 15.5 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 95.2 to 96.4 | |
| 73.6 to 79 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0 to 0.7 |
| Nickel (Ni), % | 0.5 to 0.7 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.035 |
| Silicon (Si), % | 1.2 to 1.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |