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EN 1.4650 Stainless Steel vs. Grade CY40 Nickel

EN 1.4650 stainless steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. They have a modest 32% 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 EN 1.4650 stainless steel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 48
34
Fatigue Strength, MPa 230
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 620
540
Tensile Strength: Yield (Proof), MPa 240
220

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 970
960
Melting Completion (Liquidus), °C 1420
1350
Melting Onset (Solidus), °C 1380
1300
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.1
9.1
Embodied Energy, MJ/kg 43
130
Embodied Water, L/kg 150
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
150
Resilience: Unit (Modulus of Resilience), kJ/m3 150
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.1
3.7
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.4
Chromium (Cr), % 18.5 to 20
14 to 17
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 65.8 to 72.5
0 to 11
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 9.0 to 10
67 to 86
Nitrogen (N), % 0 to 0.080
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 3.0
Sulfur (S), % 0 to 0.015
0 to 0.030