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SAE-AISI 1040 Steel vs. Grade CY40 Nickel

SAE-AISI 1040 steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1040 steel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 20
34
Fatigue Strength, MPa 220 to 340
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 570 to 640
540
Tensile Strength: Yield (Proof), MPa 320 to 530
220

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1300
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.4
9.1
Embodied Energy, MJ/kg 18
130
Embodied Water, L/kg 46
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
150
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20 to 23
18
Strength to Weight: Bending, points 19 to 21
18
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 18 to 20
16

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.4
Chromium (Cr), % 0
14 to 17
Iron (Fe), % 98.6 to 99.03
0 to 11
Manganese (Mn), % 0.6 to 0.9
0 to 1.5
Nickel (Ni), % 0
67 to 86
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 3.0
Sulfur (S), % 0 to 0.050
0 to 0.030