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SAE-AISI A2 Steel vs. Grade CY40 Nickel

SAE-AISI A2 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 (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 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 74
74
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
540

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1410
1300
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 38
14
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.7
9.1
Embodied Energy, MJ/kg 38
130
Embodied Water, L/kg 73
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25 to 73
18
Strength to Weight: Bending, points 23 to 46
18
Thermal Diffusivity, mm2/s 10
3.7
Thermal Shock Resistance, points 25 to 71
16

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.4
Chromium (Cr), % 4.8 to 5.5
14 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 89.4 to 93.3
0 to 11
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
67 to 86
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.15 to 0.5
0