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Nickel 686 vs. AISI 316 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while AISI 316 stainless steel belongs to the iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
8.0 to 55
Fatigue Strength, MPa 410
210 to 430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 560
350 to 690
Tensile Strength: Ultimate (UTS), MPa 780
520 to 1180
Tensile Strength: Yield (Proof), MPa 350
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 980
590
Melting Completion (Liquidus), °C 1380
1400
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
19
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
3.9
Embodied Energy, MJ/kg 170
53
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 280
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
18 to 41
Strength to Weight: Bending, points 21
18 to 31
Thermal Diffusivity, mm2/s 2.6
4.1
Thermal Shock Resistance, points 21
11 to 26

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.080
Chromium (Cr), % 19 to 23
16 to 18
Iron (Fe), % 0 to 5.0
62 to 72
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 15 to 17
2.0 to 3.0
Nickel (Ni), % 49.5 to 63
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.080
0 to 0.75
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