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Grade CY40 Nickel vs. S17700 Stainless Steel

Grade CY40 nickel belongs to the nickel alloys classification, while S17700 stainless steel belongs to the iron alloys. They have a modest 29% 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 S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
1.0 to 23
Fatigue Strength, MPa 160
290 to 560
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 540
1180 to 1650
Tensile Strength: Yield (Proof), MPa 220
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 960
890
Melting Completion (Liquidus), °C 1350
1440
Melting Onset (Solidus), °C 1300
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 55
13
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.1
2.8
Embodied Energy, MJ/kg 130
40
Embodied Water, L/kg 260
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 130
460 to 3750
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
42 to 59
Strength to Weight: Bending, points 18
32 to 40
Thermal Diffusivity, mm2/s 3.7
4.1
Thermal Shock Resistance, points 16
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.4
0 to 0.090
Chromium (Cr), % 14 to 17
16 to 18
Iron (Fe), % 0 to 11
70.5 to 76.8
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 67 to 86
6.5 to 7.8
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