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Nickel 686 vs. S32050 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while S32050 stainless steel belongs to the iron alloys. They have 52% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 51
46
Fatigue Strength, MPa 410
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 560
540
Tensile Strength: Ultimate (UTS), MPa 780
770
Tensile Strength: Yield (Proof), MPa 350
370

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 70
31
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 12
6.0
Embodied Energy, MJ/kg 170
81
Embodied Water, L/kg 300
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
290
Resilience: Unit (Modulus of Resilience), kJ/m3 280
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 2.6
3.3
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 19 to 23
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 0 to 5.0
43.1 to 51.8
Manganese (Mn), % 0 to 0.75
0 to 1.5
Molybdenum (Mo), % 15 to 17
6.0 to 6.6
Nickel (Ni), % 49.5 to 63
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.080
0 to 1.0
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