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Nickel 686 vs. ACI-ASTM CA28MWV Steel

Nickel 686 belongs to the nickel alloys classification, while ACI-ASTM CA28MWV steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
11
Fatigue Strength, MPa 410
470
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 780
1080
Tensile Strength: Yield (Proof), MPa 350
870

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 980
740
Melting Completion (Liquidus), °C 1380
1470
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 70
11
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
3.1
Embodied Energy, MJ/kg 170
44
Embodied Water, L/kg 300
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
38
Strength to Weight: Bending, points 21
30
Thermal Diffusivity, mm2/s 2.6
6.6
Thermal Shock Resistance, points 21
40

Alloy Composition

Carbon (C), % 0 to 0.010
0.2 to 0.28
Chromium (Cr), % 19 to 23
11 to 12.5
Iron (Fe), % 0 to 5.0
81.4 to 85.8
Manganese (Mn), % 0 to 0.75
0.5 to 1.0
Molybdenum (Mo), % 15 to 17
0.9 to 1.3
Nickel (Ni), % 49.5 to 63
0.5 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.080
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3