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Nickel 686 vs. Grade VDSiCr Steel

Nickel 686 belongs to the nickel alloys classification, while grade VDSiCr steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 780
1950

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 980
410
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 9.8
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.2
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 12
1.5
Embodied Energy, MJ/kg 170
20
Embodied Water, L/kg 300
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
70
Strength to Weight: Bending, points 21
45
Thermal Diffusivity, mm2/s 2.6
12
Thermal Shock Resistance, points 21
58

Alloy Composition

Carbon (C), % 0 to 0.010
0.5 to 0.6
Chromium (Cr), % 19 to 23
0.5 to 0.8
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 0 to 5.0
96.6 to 97.8
Manganese (Mn), % 0 to 0.75
0.5 to 0.9
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.080
1.2 to 1.6
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0