Grade 250 Maraging Steel vs. ASTM B540 Palladium
Grade 250 maraging steel belongs to the iron alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is ASTM B540 palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 7.3 to 17 | |
| 1.1 to 14 |
| Poisson's Ratio | 0.3 | |
| 0.38 |
| Shear Modulus, GPa | 75 | |
| 39 |
| Shear Strength, MPa | 600 to 1060 | |
| 500 to 700 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1800 | |
| 830 to 1240 |
| Tensile Strength: Yield (Proof), MPa | 660 to 1740 | |
| 620 to 1000 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 140 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1220 |
| Melting Onset (Solidus), °C | 1430 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 240 |
| Thermal Expansion, µm/m-K | 12 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 150 | |
| 13 to 100 |
| Stiffness to Weight: Axial, points | 13 | |
| 4.7 |
| Stiffness to Weight: Bending, points | 23 | |
| 12 |
| Strength to Weight: Axial, points | 33 to 61 | |
| 18 to 27 |
| Strength to Weight: Bending, points | 26 to 40 | |
| 15 to 20 |
| Thermal Shock Resistance, points | 29 to 54 | |
| 41 to 61 |
Alloy Composition
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| 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 |
| Cobalt (Co), % | 7.0 to 8.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 13.5 to 14.5 |
| Gold (Au), % | 0 | |
| 9.5 to 10.5 |
| Iron (Fe), % | 66.3 to 71.1 | |
| 0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 |
| Nickel (Ni), % | 17 to 19 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 34 to 36 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Platinum (Pt), % | 0 | |
| 9.5 to 10.5 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Silver (Ag), % | 0 | |
| 29 to 31 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0.3 to 0.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0.8 to 1.2 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.3 |