Grade 200 Maraging Steel vs. Grade 300 Maraging Steel
Both grade 200 maraging steel and grade 300 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 200 maraging steel and the bottom bar is grade 300 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 730 to 1260 | |
| 730 to 1880 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 9.1 to 18 | |
| 6.5 to 18 |
| Poisson's Ratio | 0.3 | |
| 0.3 |
| Rockwell C Hardness | 29 to 45 | |
| 31 to 56 |
| Shear Modulus, GPa | 74 | |
| 75 |
| Shear Strength, MPa | 600 to 890 | |
| 640 to 1190 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1500 | |
| 1030 to 2030 |
| Tensile Strength: Yield (Proof), MPa | 690 to 1490 | |
| 760 to 1990 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 270 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1480 |
| Melting Onset (Solidus), °C | 1420 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 34 |
| Density, g/cm3 | 8.2 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 5.1 |
| Embodied Energy, MJ/kg | 59 | |
| 68 |
| Embodied Water, L/kg | 140 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 11 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 130 to 170 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 33 to 51 | |
| 35 to 68 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 28 to 43 |
| Thermal Shock Resistance, points | 29 to 45 | |
| 31 to 62 |
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), % | 8.0 to 9.0 | |
| 8.5 to 9.5 |
| Iron (Fe), % | 67.8 to 71.8 | |
| 65 to 68.4 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 3.0 to 3.5 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 17 to 19 | |
| 18 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), % | 0.15 to 0.25 | |
| 0.5 to 0.8 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 to 0.020 |