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Grade CW6MC Nickel vs. SAE-AISI A8 Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while SAE-AISI A8 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade CW6MC nickel and the bottom bar is SAE-AISI A8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 540
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 1480
1480
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 11
37
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
8.5
Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 14
2.3
Embodied Energy, MJ/kg 200
31
Embodied Water, L/kg 290
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
25 to 68
Strength to Weight: Bending, points 17
22 to 44
Thermal Diffusivity, mm2/s 2.8
9.9
Thermal Shock Resistance, points 15
22 to 62

Alloy Composition

Carbon (C), % 0 to 0.060
0.5 to 0.6
Chromium (Cr), % 20 to 23
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
88.5 to 91.9
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 8.0 to 10
1.2 to 1.7
Nickel (Ni), % 55.4 to 68.9
0 to 0.3
Niobium (Nb), % 3.2 to 4.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 1.0
0.75 to 1.1
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.0 to 1.5