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ACI-ASTM CF8C Steel vs. Nickel 242

ACI-ASTM CF8C steel belongs to the iron alloys classification, while nickel 242 belongs to the nickel alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8C steel and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
45
Fatigue Strength, MPa 220
300
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 530
820
Tensile Strength: Yield (Proof), MPa 260
350

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 980
930
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1430
1290
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 16
11
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
75
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.7
14
Embodied Energy, MJ/kg 53
180
Embodied Water, L/kg 150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
300
Resilience: Unit (Modulus of Resilience), kJ/m3 170
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.3
3.1
Thermal Shock Resistance, points 11
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 21
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 61.8 to 73
0 to 2.0
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0 to 0.5
24 to 26
Nickel (Ni), % 9.0 to 12
59.3 to 69
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.015