Grade 300 Maraging Steel vs. Grade 200 Maraging Steel
Both grade 300 maraging steel and grade 200 maraging steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is grade 200 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 730 to 1880 | |
| 730 to 1260 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 6.5 to 18 | |
| 9.1 to 18 |
| Poisson's Ratio | 0.3 | |
| 0.3 |
| Rockwell C Hardness | 31 to 56 | |
| 29 to 45 |
| Shear Modulus, GPa | 75 | |
| 74 |
| Shear Strength, MPa | 640 to 1190 | |
| 600 to 890 |
| Tensile Strength: Ultimate (UTS), MPa | 1030 to 2030 | |
| 970 to 1500 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1990 | |
| 690 to 1490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 260 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1460 |
| Melting Onset (Solidus), °C | 1430 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 460 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 31 |
| Density, g/cm3 | 8.2 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 4.5 |
| Embodied Energy, MJ/kg | 68 | |
| 59 |
| Embodied Water, L/kg | 150 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 16 | |
| 11 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 170 | |
| 140 to 160 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 35 to 68 | |
| 33 to 51 |
| Strength to Weight: Bending, points | 28 to 43 | |
| 27 to 35 |
| Thermal Shock Resistance, points | 31 to 62 | |
| 29 to 45 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0.050 to 0.15 |
| Boron (B), % | 0 to 0.0030 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 to 0.050 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.030 |
| Cobalt (Co), % | 8.5 to 9.5 | |
| 8.0 to 9.0 |
| Iron (Fe), % | 65 to 68.4 | |
| 67.8 to 71.8 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 3.0 to 3.5 |
| Nickel (Ni), % | 18 to 19 | |
| 17 to 19 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0.5 to 0.8 | |
| 0.15 to 0.25 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 to 0.020 |