Nickel 625 vs. ACI-ASTM CB7Cu-2 Steel
Nickel 625 belongs to the nickel alloys classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is nickel 625 and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 33 to 34 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 240 to 320 | |
| 420 to 590 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 910 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 320 to 450 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 280 |
| Melting Completion (Liquidus), °C | 1350 | |
| 1430 |
| Melting Onset (Solidus), °C | 1290 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Conductivity, W/m-K | 11 | |
| 17 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.3 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.4 | |
| 2.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 13 |
| Density, g/cm3 | 8.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 14 | |
| 2.6 |
| Embodied Energy, MJ/kg | 190 | |
| 38 |
| Embodied Water, L/kg | 290 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 220 to 250 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 490 | |
| 1510 to 3600 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 26 to 29 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 22 to 24 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 4.6 |
| Thermal Shock Resistance, points | 22 to 25 | |
| 32 to 45 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.4 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.070 |
| Chromium (Cr), % | 20 to 23 | |
| 14 to 15.5 |
| Cobalt (Co), % | 0 to 1.0 | |
| 0 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 0 to 5.0 | |
| 73.6 to 79 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 8.0 to 10 | |
| 0 |
| Nickel (Ni), % | 58 to 68.9 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 3.2 to 4.2 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.4 | |
| 0 |