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Grade CW6MC Nickel vs. ACI-ASTM CB6 Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while ACI-ASTM CB6 steel belongs to the iron alloys. They have a modest 25% 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 (3, in this case) are not shown.

For each property being compared, the top bar is grade CW6MC nickel and the bottom bar is ACI-ASTM CB6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
18
Fatigue Strength, MPa 210
410
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 540
880
Tensile Strength: Yield (Proof), MPa 310
660

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
870
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
17
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 80
12
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
2.5
Embodied Energy, MJ/kg 200
36
Embodied Water, L/kg 290
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
32
Strength to Weight: Bending, points 17
26
Thermal Diffusivity, mm2/s 2.8
4.6
Thermal Shock Resistance, points 15
31

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 20 to 23
15.5 to 17.5
Iron (Fe), % 0 to 5.0
74.4 to 81
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0 to 0.5
Nickel (Ni), % 55.4 to 68.9
3.5 to 5.5
Niobium (Nb), % 3.2 to 4.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030