Grade 350 Maraging Steel vs. ASTM B817 Type II
Grade 350 maraging steel belongs to the iron alloys classification, while ASTM B817 type II belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is ASTM B817 type II.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 100 |
| Elongation at Break, % | 4.1 to 18 | |
| 3.0 to 13 |
| Poisson's Ratio | 0.3 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 1140 to 2420 | |
| 900 to 960 |
| Tensile Strength: Yield (Proof), MPa | 830 to 2300 | |
| 780 to 900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 400 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1580 |
| Melting Onset (Solidus), °C | 1420 | |
| 1530 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 550 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 37 |
| Density, g/cm3 | 8.2 | |
| 4.6 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 40 |
| Embodied Energy, MJ/kg | 74 | |
| 650 |
| Embodied Water, L/kg | 160 | |
| 220 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 190 | |
| 26 to 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 34 |
| Strength to Weight: Axial, points | 38 to 82 | |
| 55 to 58 |
| Strength to Weight: Bending, points | 29 to 49 | |
| 45 to 47 |
| Thermal Shock Resistance, points | 35 to 74 | |
| 62 to 66 |
Alloy Composition
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| Aluminum (Al), % | 0.050 to 0.15 | |
| 5.0 to 6.0 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.1 |
| Chlorine (Cl), % | 0 | |
| 0 to 0.2 |
| Cobalt (Co), % | 11.5 to 12.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.35 to 1.0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 61.2 to 64.6 | |
| 0.35 to 1.0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 |
| Nickel (Ni), % | 18 to 19 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.1 |
| Sodium (Na), % | 0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 1.3 to 1.6 | |
| 82.1 to 87.8 |
| Vanadium (V), % | 0 | |
| 5.0 to 6.0 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |