Grade 250 Maraging Steel vs. AISI 422 Stainless Steel
Both grade 250 maraging steel and AISI 422 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 25 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 AISI 422 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 7.3 to 17 | |
15 to 17 |
Poisson's Ratio | 0.3 | |
0.28 |
Rockwell C Hardness | 30 to 53 | |
21 |
Shear Modulus, GPa | 75 | |
76 |
Shear Strength, MPa | 600 to 1060 | |
560 to 660 |
Tensile Strength: Ultimate (UTS), MPa | 970 to 1800 | |
910 to 1080 |
Tensile Strength: Yield (Proof), MPa | 660 to 1740 | |
670 to 870 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
270 |
Melting Completion (Liquidus), °C | 1480 | |
1480 |
Melting Onset (Solidus), °C | 1430 | |
1470 |
Specific Heat Capacity, J/kg-K | 450 | |
470 |
Thermal Expansion, µm/m-K | 12 | |
10 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 32 | |
11 |
Density, g/cm3 | 8.2 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 4.9 | |
3.1 |
Embodied Energy, MJ/kg | 65 | |
44 |
Embodied Water, L/kg | 140 | |
100 |
Common Calculations
PREN (Pitting Resistance) | 16 | |
17 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 150 | |
140 to 150 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 23 | |
25 |
Strength to Weight: Axial, points | 33 to 61 | |
32 to 38 |
Strength to Weight: Bending, points | 26 to 40 | |
26 to 30 |
Thermal Shock Resistance, points | 29 to 54 | |
33 to 39 |
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 | |
0.2 to 0.25 |
Chromium (Cr), % | 0 | |
11 to 12.5 |
Cobalt (Co), % | 7.0 to 8.5 | |
0 |
Iron (Fe), % | 66.3 to 71.1 | |
81.9 to 85.8 |
Manganese (Mn), % | 0 to 0.1 | |
0.5 to 1.0 |
Molybdenum (Mo), % | 4.6 to 5.2 | |
0.9 to 1.3 |
Nickel (Ni), % | 17 to 19 | |
0.5 to 1.0 |
Phosphorus (P), % | 0 to 0.010 | |
0 to 0.025 |
Silicon (Si), % | 0 to 0.1 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.010 | |
0 to 0.025 |
Titanium (Ti), % | 0.3 to 0.5 | |
0 |
Tungsten (W), % | 0 | |
0.9 to 1.3 |
Vanadium (V), % | 0 | |
0.2 to 0.3 |
Zirconium (Zr), % | 0 to 0.020 | |
0 |