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ACI-ASTM CF16F Steel vs. Nickel 686

ACI-ASTM CF16F steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. They have a modest 34% 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 CF16F steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 50
51
Fatigue Strength, MPa 270
410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 530
780
Tensile Strength: Yield (Proof), MPa 280
350

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 980
980
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 16
9.8
Thermal Expansion, µm/m-K 16
12

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 18
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.4
12
Embodied Energy, MJ/kg 47
170
Embodied Water, L/kg 150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
320
Resilience: Unit (Modulus of Resilience), kJ/m3 190
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.3
2.6
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0 to 0.16
0 to 0.010
Chromium (Cr), % 18 to 21
19 to 23
Iron (Fe), % 61.3 to 72.8
0 to 5.0
Manganese (Mn), % 0 to 1.5
0 to 0.75
Molybdenum (Mo), % 0 to 1.5
15 to 17
Nickel (Ni), % 9.0 to 12
49.5 to 63
Phosphorus (P), % 0 to 0.17
0 to 0.040
Selenium (Se), % 0.2 to 0.35
0
Silicon (Si), % 0 to 2.0
0 to 0.080
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4