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Nickel 686 vs. EN 1.4857 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4857 stainless steel belongs to the iron alloys. They have 59% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 1.4857 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
6.7
Fatigue Strength, MPa 410
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 780
500
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1380
1370
Melting Onset (Solidus), °C 1340
1320
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 9.8
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 70
34
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
5.7
Embodied Energy, MJ/kg 170
81
Embodied Water, L/kg 300
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
28
Resilience: Unit (Modulus of Resilience), kJ/m3 280
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 2.6
3.4
Thermal Shock Resistance, points 21
11

Alloy Composition

Carbon (C), % 0 to 0.010
0.3 to 0.5
Chromium (Cr), % 19 to 23
24 to 27
Iron (Fe), % 0 to 5.0
31.4 to 41.7
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 15 to 17
0 to 0.5
Nickel (Ni), % 49.5 to 63
33 to 36
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.080
1.0 to 2.5
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