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Grade CX2M Nickel vs. SAE-AISI 8642 Steel

Grade CX2M nickel belongs to the nickel alloys classification, while SAE-AISI 8642 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade CX2M nickel and the bottom bar is SAE-AISI 8642 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 45
23
Fatigue Strength, MPa 260
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
73
Tensile Strength: Ultimate (UTS), MPa 550
580
Tensile Strength: Yield (Proof), MPa 310
380

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 990
410
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 10
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 65
2.6
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 310
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 2.7
10
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0 to 0.020
0.4 to 0.45
Chromium (Cr), % 22 to 24
0.4 to 0.6
Iron (Fe), % 0 to 1.5
96.6 to 97.8
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 15 to 16.5
0.15 to 0.25
Nickel (Ni), % 56.4 to 63
0.4 to 0.7
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040