ACI-ASTM CB7Cu-2 Steel vs. Type 4 Magnetic Alloy
ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. There are 26 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 ACI-ASTM CB7Cu-2 steel and the bottom bar is Type 4 magnetic alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 5.7 to 11 | |
| 2.0 to 40 |
| Fatigue Strength, MPa | 420 to 590 | |
| 220 to 400 |
| Poisson's Ratio | 0.28 | |
| 0.31 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 620 to 1100 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 270 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1420 |
| Melting Onset (Solidus), °C | 1380 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 440 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.1 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.4 | |
| 3.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 60 |
| Density, g/cm3 | 7.8 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 10 |
| Embodied Energy, MJ/kg | 38 | |
| 140 |
| Embodied Water, L/kg | 130 | |
| 210 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 22 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1510 to 3600 | |
| 190 to 2840 |
| Stiffness to Weight: Axial, points | 14 | |
| 12 |
| Stiffness to Weight: Bending, points | 25 | |
| 22 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 19 to 35 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 18 to 27 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 21 to 37 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.050 |
| Chromium (Cr), % | 14 to 15.5 | |
| 0 to 0.3 |
| Cobalt (Co), % | 0 | |
| 0 to 0.5 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 to 0.3 |
| Iron (Fe), % | 73.6 to 79 | |
| 9.5 to 17.5 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 6.0 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 79 to 82 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |