Grade 350 Maraging Steel vs. SAE-AISI 4320 Steel
Both grade 350 maraging steel and SAE-AISI 4320 steel are iron alloys. They have 65% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is SAE-AISI 4320 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 4.1 to 18 | |
| 21 to 29 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 73 |
| Shear Strength, MPa | 710 to 1400 | |
| 370 to 500 |
| Tensile Strength: Ultimate (UTS), MPa | 1140 to 2420 | |
| 570 to 790 |
| Tensile Strength: Yield (Proof), MPa | 830 to 2300 | |
| 430 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Expansion, µm/m-K | 12 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 3.4 |
| Density, g/cm3 | 8.2 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 1.7 |
| Embodied Energy, MJ/kg | 74 | |
| 22 |
| Embodied Water, L/kg | 160 | |
| 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 190 | |
| 140 to 150 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 38 to 82 | |
| 20 to 28 |
| Strength to Weight: Bending, points | 29 to 49 | |
| 19 to 24 |
| Thermal Shock Resistance, points | 35 to 74 | |
| 19 to 27 |
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 | |
| 0.17 to 0.22 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Cobalt (Co), % | 11.5 to 12.5 | |
| 0 |
| Iron (Fe), % | 61.2 to 64.6 | |
| 95.8 to 97 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 18 to 19 | |
| 1.7 to 2.0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.1 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.040 |
| Titanium (Ti), % | 1.3 to 1.6 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |