ACI-ASTM CB7Cu-1 Steel vs. EN 1.6579 Steel
Both ACI-ASTM CB7Cu-1 steel and EN 1.6579 steel are iron alloys. They have 79% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB7Cu-1 steel and the bottom bar is EN 1.6579 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 300 to 420 | |
| 260 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 5.7 to 11 | |
| 11 to 14 |
| Fatigue Strength, MPa | 420 to 590 | |
| 380 to 570 |
| Impact Strength: V-Notched Charpy, J | 34 | |
| 35 to 41 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 850 to 980 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 600 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1500 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 17 | |
| 39 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 7.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.3 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 3.7 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.7 |
| Embodied Energy, MJ/kg | 38 | |
| 22 |
| Embodied Water, L/kg | 130 | |
| 56 |
Common Calculations
| PREN (Pitting Resistance) | 17 | |
| 2.4 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1500 to 3590 | |
| 950 to 2210 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 30 to 35 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 25 to 28 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 11 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 25 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.32 to 0.38 |
| Chromium (Cr), % | 15.5 to 17.7 | |
| 1.4 to 1.7 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 |
| Iron (Fe), % | 72.3 to 78.4 | |
| 94.2 to 96.1 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.35 |
| Nickel (Ni), % | 3.6 to 4.6 | |
| 1.4 to 1.7 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |