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Grade CY40 Nickel vs. SAE-AISI P20 Steel

Grade CY40 nickel belongs to the nickel alloys classification, while SAE-AISI P20 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 CY40 nickel and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 540
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1300
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.8
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
1.6
Embodied Energy, MJ/kg 130
21
Embodied Water, L/kg 260
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
19 to 37
Strength to Weight: Bending, points 18
19 to 29
Thermal Diffusivity, mm2/s 3.7
12
Thermal Shock Resistance, points 16
18 to 35

Alloy Composition

Carbon (C), % 0 to 0.4
0.28 to 0.4
Chromium (Cr), % 14 to 17
0.4 to 2.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 11
95.2 to 98.5
Manganese (Mn), % 0 to 1.5
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 67 to 86
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 3.0
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030