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Grade CY40 Nickel vs. S15500 Stainless Steel

Grade CY40 nickel belongs to the nickel alloys classification, while S15500 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 (7, in this case) are not shown.

For each property being compared, the top bar is grade CY40 nickel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
6.8 to 16
Fatigue Strength, MPa 160
350 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Tensile Strength: Ultimate (UTS), MPa 540
890 to 1490
Tensile Strength: Yield (Proof), MPa 220
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 960
820
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1300
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
17
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
13
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
2.7
Embodied Energy, MJ/kg 130
39
Embodied Water, L/kg 260
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
32 to 53
Strength to Weight: Bending, points 18
26 to 37
Thermal Diffusivity, mm2/s 3.7
4.6
Thermal Shock Resistance, points 16
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.4
0 to 0.070
Chromium (Cr), % 14 to 17
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 0 to 11
71.9 to 79.9
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 67 to 86
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 3.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030