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Nickel 686 vs. EN 1.4874 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4874 stainless steel belongs to the iron alloys. They have 49% of their average alloy composition in common. There are 27 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 EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 51
6.7
Fatigue Strength, MPa 410
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 780
480
Tensile Strength: Yield (Proof), MPa 350
360

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 420
450
Thermal Conductivity, W/m-K 9.8
13
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 70
70
Density, g/cm3 9.0
8.4
Embodied Carbon, kg CO2/kg material 12
7.6
Embodied Energy, MJ/kg 170
110
Embodied Water, L/kg 300
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
29
Resilience: Unit (Modulus of Resilience), kJ/m3 280
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
16
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 2.6
3.3
Thermal Shock Resistance, points 21
11

Alloy Composition

Carbon (C), % 0 to 0.010
0.35 to 0.65
Chromium (Cr), % 19 to 23
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 0 to 5.0
23 to 38.9
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 15 to 17
2.5 to 3.0
Nickel (Ni), % 49.5 to 63
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.080
0 to 1.0
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
2.0 to 3.0