Grade 250 Maraging Steel vs. ASTM B617 Coin Silver
Grade 250 maraging steel belongs to the iron alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 17 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 250 maraging steel and the bottom bar is ASTM B617 coin silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 75 |
| Elongation at Break, % | 7.3 to 17 | |
| 1.1 to 22 |
| Poisson's Ratio | 0.3 | |
| 0.37 |
| Shear Modulus, GPa | 75 | |
| 28 |
| Shear Strength, MPa | 600 to 1060 | |
| 180 to 290 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1800 | |
| 290 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 120 |
| Melting Completion (Liquidus), °C | 1480 | |
| 870 |
| Melting Onset (Solidus), °C | 1430 | |
| 780 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 250 |
| Thermal Expansion, µm/m-K | 12 | |
| 19 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 4.1 |
| Stiffness to Weight: Bending, points | 23 | |
| 14 |
| Strength to Weight: Axial, points | 33 to 61 | |
| 7.7 to 14 |
| Strength to Weight: Bending, points | 26 to 40 | |
| 9.3 to 14 |
| Thermal Shock Resistance, points | 29 to 54 | |
| 14 to 25 |
Alloy Composition
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| Aluminum (Al), % | 0.050 to 0.15 | |
| 0 to 0.0050 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| 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 | |
| 9.0 to 10.4 |
| Iron (Fe), % | 66.3 to 71.1 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 |
| Nickel (Ni), % | 17 to 19 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Silver (Ag), % | 0 | |
| 89.6 to 91 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0.3 to 0.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.060 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.060 |