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Grade CW2M Nickel vs. ACI-ASTM CD4MCu Steel

Grade CW2M nickel belongs to the nickel alloys classification, while ACI-ASTM CD4MCu steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade CW2M nickel and the bottom bar is ACI-ASTM CD4MCu steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
18
Fatigue Strength, MPa 190
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 83
79
Tensile Strength: Ultimate (UTS), MPa 560
770
Tensile Strength: Yield (Proof), MPa 310
550

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1520
1430
Melting Onset (Solidus), °C 1460
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
18
Density, g/cm3 8.8
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 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.040
Chromium (Cr), % 15 to 17.5
24.5 to 26.5
Copper (Cu), % 0
2.8 to 3.3
Iron (Fe), % 0 to 2.0
59.9 to 66.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 15 to 17.5
1.8 to 2.3
Nickel (Ni), % 60.1 to 70
4.8 to 6.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 0 to 1.0
0