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Nickel 686 vs. S42300 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while S42300 stainless steel belongs to the iron alloys. There are 30 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 S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
9.1
Fatigue Strength, MPa 410
440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 560
650
Tensile Strength: Ultimate (UTS), MPa 780
1100
Tensile Strength: Yield (Proof), MPa 350
850

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 980
750
Melting Completion (Liquidus), °C 1380
1470
Melting Onset (Solidus), °C 1340
1420
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
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
3.2
Embodied Energy, MJ/kg 170
44
Embodied Water, L/kg 300
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
93
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
39
Strength to Weight: Bending, points 21
30
Thermal Diffusivity, mm2/s 2.6
6.8
Thermal Shock Resistance, points 21
40

Alloy Composition

Carbon (C), % 0 to 0.010
0.27 to 0.32
Chromium (Cr), % 19 to 23
11 to 12
Iron (Fe), % 0 to 5.0
82 to 85.1
Manganese (Mn), % 0 to 0.75
1.0 to 1.4
Molybdenum (Mo), % 15 to 17
2.5 to 3.0
Nickel (Ni), % 49.5 to 63
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.080
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0
Vanadium (V), % 0
0.2 to 0.3