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SAE-AISI A8 Steel vs. N06650 Nickel

SAE-AISI A8 steel belongs to the iron alloys classification, while N06650 nickel belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A8 steel and the bottom bar is N06650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
82
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
900

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1480
1500
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
60
Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 2.3
10
Embodied Energy, MJ/kg 31
140
Embodied Water, L/kg 73
270

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 25 to 68
29
Strength to Weight: Bending, points 22 to 44
24
Thermal Shock Resistance, points 22 to 62
24

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.5
Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
19 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 88.5 to 91.9
12 to 16
Manganese (Mn), % 0 to 0.5
0 to 0.5
Molybdenum (Mo), % 1.2 to 1.7
9.5 to 12.5
Nickel (Ni), % 0 to 0.3
44.4 to 58.9
Niobium (Nb), % 0
0.050 to 0.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.75 to 1.1
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 1.0 to 1.5
0.5 to 2.5