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ACI-ASTM CC50 Steel vs. Grade CW6MC Nickel

ACI-ASTM CC50 steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 430
540

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
80
Density, g/cm3 7.6
8.6
Embodied Carbon, kg CO2/kg material 2.7
14
Embodied Energy, MJ/kg 39
200
Embodied Water, L/kg 170
290

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 4.5
2.8
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.060
Chromium (Cr), % 26 to 30
20 to 23
Iron (Fe), % 62.9 to 74
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0 to 4.0
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030