ACI-ASTM CB7Cu-2 Steel vs. EN 1.6570 Steel
Both ACI-ASTM CB7Cu-2 steel and EN 1.6570 steel are iron alloys. They have 80% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is EN 1.6570 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 300 to 420 | |
| 270 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 5.7 to 11 | |
| 11 to 17 |
| Fatigue Strength, MPa | 420 to 590 | |
| 500 to 660 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 910 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 760 to 1060 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 17 | |
| 40 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.1 | |
| 7.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 3.9 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.7 |
| Embodied Energy, MJ/kg | 38 | |
| 23 |
| Embodied Water, L/kg | 130 | |
| 56 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 2.5 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 120 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1510 to 3600 | |
| 1520 to 3010 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 32 to 40 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 27 to 31 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 11 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 27 to 33 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.28 to 0.35 |
| Chromium (Cr), % | 14 to 15.5 | |
| 1.0 to 1.4 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 |
| Iron (Fe), % | 73.6 to 79 | |
| 94 to 96.2 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.3 to 0.5 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 1.6 to 2.1 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |