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Grade CX2MW Nickel vs. ACI-ASTM CD4MCuN Steel

Grade CX2MW nickel belongs to the nickel alloys classification, while ACI-ASTM CD4MCuN steel belongs to the iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade CX2MW nickel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 34
18
Fatigue Strength, MPa 260
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 84
79
Tensile Strength: Ultimate (UTS), MPa 620
770
Tensile Strength: Yield (Proof), MPa 350
550

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1550
1420
Melting Onset (Solidus), °C 1490
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
17
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 65
18
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 12
3.5
Embodied Energy, MJ/kg 170
49
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 290
760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 2.7
4.5
Thermal Shock Resistance, points 17
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.040
Chromium (Cr), % 20 to 22.5
24.5 to 26.5
Copper (Cu), % 0
2.7 to 3.3
Iron (Fe), % 2.0 to 6.0
59.5 to 66.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 12.5 to 14.5
1.7 to 2.3
Nickel (Ni), % 51.3 to 63
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.040
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0