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Grade CX2M Nickel vs. ACI-ASTM CK3MCuN Steel

Grade CX2M nickel belongs to the nickel alloys classification, while ACI-ASTM CK3MCuN steel belongs to the iron alloys. They have 47% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade CX2M nickel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 45
39
Fatigue Strength, MPa 260
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
80
Tensile Strength: Ultimate (UTS), MPa 550
620
Tensile Strength: Yield (Proof), MPa 310
290

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 990
1090
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1350
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 10
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 65
29
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 12
5.6
Embodied Energy, MJ/kg 160
76
Embodied Water, L/kg 310
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
200
Resilience: Unit (Modulus of Resilience), kJ/m3 220
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 2.7
3.2
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.025
Chromium (Cr), % 22 to 24
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 0 to 1.5
49.5 to 56.3
Manganese (Mn), % 0 to 1.0
0 to 1.2
Molybdenum (Mo), % 15 to 16.5
6.0 to 7.0
Nickel (Ni), % 56.4 to 63
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010