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Grade 250 Maraging Steel vs. Grade CX2M Nickel

Grade 250 maraging steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 7.3 to 17
45
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
84
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
550
Tensile Strength: Yield (Proof), MPa 660 to 1740
310

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1480
1500
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 450
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
65
Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 4.9
12
Embodied Energy, MJ/kg 65
160
Embodied Water, L/kg 140
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 33 to 61
18
Strength to Weight: Bending, points 26 to 40
17
Thermal Shock Resistance, points 29 to 54
15

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 to 0.020
Chromium (Cr), % 0
22 to 24
Cobalt (Co), % 7.0 to 8.5
0
Iron (Fe), % 66.3 to 71.1
0 to 1.5
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
15 to 16.5
Nickel (Ni), % 17 to 19
56.4 to 63
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.3 to 0.5
0
Zirconium (Zr), % 0 to 0.020
0