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SAE-AISI A8 Steel vs. Grade CW6M Nickel

SAE-AISI A8 steel belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A8 steel and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
84
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
560

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1480
1530
Melting Onset (Solidus), °C 1430
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
65
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.3
13
Embodied Energy, MJ/kg 31
170
Embodied Water, L/kg 73
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 25 to 68
18
Strength to Weight: Bending, points 22 to 44
17
Thermal Shock Resistance, points 22 to 62
16

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.070
Chromium (Cr), % 4.8 to 5.5
17 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 88.5 to 91.9
0 to 3.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 1.2 to 1.7
17 to 20
Nickel (Ni), % 0 to 0.3
54.9 to 66
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.75 to 1.1
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.0 to 1.5
0