Grade 300 Maraging Steel vs. ACI-ASTM CB7Cu-2 Steel
Both grade 300 maraging steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 72% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.5 to 18 | |
| 5.7 to 11 |
| Poisson's Ratio | 0.3 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 1030 to 2030 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1990 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1430 |
| Melting Onset (Solidus), °C | 1430 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 480 |
| Thermal Expansion, µm/m-K | 12 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 13 |
| Density, g/cm3 | 8.2 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 2.6 |
| Embodied Energy, MJ/kg | 68 | |
| 38 |
| Embodied Water, L/kg | 150 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 16 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
| 71 to 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 35 to 68 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 28 to 43 | |
| 28 to 35 |
| Thermal Shock Resistance, points | 31 to 62 | |
| 32 to 45 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0 | |
| 14 to 15.5 |
| Cobalt (Co), % | 8.5 to 9.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 65 to 68.4 | |
| 73.6 to 79 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 |
| Nickel (Ni), % | 18 to 19 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0.5 to 0.8 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |