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SAE-AISI A8 Steel vs. N06975 Nickel

SAE-AISI A8 steel belongs to the iron alloys classification, while N06975 nickel belongs to the nickel alloys. They have a modest 25% 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 N06975 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
660

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
50
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.3
8.9
Embodied Energy, MJ/kg 31
120
Embodied Water, L/kg 73
270

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 68
22
Strength to Weight: Bending, points 22 to 44
20
Thermal Shock Resistance, points 22 to 62
18

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
23 to 26
Copper (Cu), % 0 to 0.25
0.7 to 1.2
Iron (Fe), % 88.5 to 91.9
10.2 to 23.6
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 1.2 to 1.7
5.0 to 7.0
Nickel (Ni), % 0 to 0.3
47 to 52
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.75 to 1.1
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.7 to 1.5
Tungsten (W), % 1.0 to 1.5
0