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Grade CY40 Nickel vs. S82122 Stainless Steel

Grade CY40 nickel belongs to the nickel alloys classification, while S82122 stainless steel belongs to the iron alloys. They have a modest 24% 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 (5, in this case) are not shown.

For each property being compared, the top bar is grade CY40 nickel and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 160
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 540
680
Tensile Strength: Yield (Proof), MPa 220
450

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 960
990
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1300
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
12
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.1
2.6
Embodied Energy, MJ/kg 130
37
Embodied Water, L/kg 260
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
210
Resilience: Unit (Modulus of Resilience), kJ/m3 130
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.7
4.0
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.4
0 to 0.030
Chromium (Cr), % 14 to 17
20.5 to 21.5
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 0 to 11
68.9 to 75.4
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 67 to 86
1.5 to 2.5
Nitrogen (N), % 0
0.15 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 3.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.020