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Grade CY40 Nickel vs. S44635 Stainless Steel

Grade CY40 nickel belongs to the nickel alloys classification, while S44635 stainless steel belongs to the iron alloys. They have a modest 26% 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 S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 160
390
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
81
Tensile Strength: Ultimate (UTS), MPa 540
710
Tensile Strength: Yield (Proof), MPa 220
580

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 960
1100
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
16
Thermal Expansion, µm/m-K 12
11

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
22
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
4.4
Embodied Energy, MJ/kg 130
62
Embodied Water, L/kg 260
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
810
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.7
4.4
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0 to 0.4
0 to 0.025
Chromium (Cr), % 14 to 17
24.5 to 26
Iron (Fe), % 0 to 11
61.5 to 68.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 67 to 86
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
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 0.030
Titanium (Ti), % 0
0.2 to 0.8