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Grade CX2M Nickel vs. ACI-ASTM CD4MCuN Steel

Grade CX2M nickel belongs to the nickel alloys classification, while ACI-ASTM CD4MCuN steel belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. 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 ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 45
18
Fatigue Strength, MPa 260
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 84
79
Tensile Strength: Ultimate (UTS), MPa 550
770
Tensile Strength: Yield (Proof), MPa 310
550

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1500
1420
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
17
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 65
18
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
3.5
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 2.7
4.5
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.040
Chromium (Cr), % 22 to 24
24.5 to 26.5
Copper (Cu), % 0
2.7 to 3.3
Iron (Fe), % 0 to 1.5
59.5 to 66.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 15 to 16.5
1.7 to 2.3
Nickel (Ni), % 56.4 to 63
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.040