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SAE-AISI S4 Steel vs. Grade CY40 Nickel

SAE-AISI S4 steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S4 steel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
74
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
540

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1390
1300
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 44
14
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
55
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
9.1
Embodied Energy, MJ/kg 29
130
Embodied Water, L/kg 48
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 77
18
Strength to Weight: Bending, points 22 to 48
18
Thermal Diffusivity, mm2/s 12
3.7
Thermal Shock Resistance, points 20 to 65
16

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.4
Chromium (Cr), % 0.1 to 0.5
14 to 17
Iron (Fe), % 95.2 to 96.9
0 to 11
Manganese (Mn), % 0.6 to 1.0
0 to 1.5
Nickel (Ni), % 0
67 to 86
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.8 to 2.3
0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.15 to 0.35
0