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Nickel 686 vs. EN 1.4596 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4596 stainless steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 1.4596 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 780
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 980
790
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 420
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
15
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
3.5
Embodied Energy, MJ/kg 170
48
Embodied Water, L/kg 300
130

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
36 to 56
Strength to Weight: Bending, points 21
29 to 39
Thermal Shock Resistance, points 21
35 to 54

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.1
Carbon (C), % 0 to 0.010
0 to 0.015
Chromium (Cr), % 19 to 23
11.5 to 12.5
Iron (Fe), % 0 to 5.0
73.4 to 76.4
Manganese (Mn), % 0 to 0.75
0 to 0.1
Molybdenum (Mo), % 15 to 17
1.9 to 2.2
Nickel (Ni), % 49.5 to 63
9.2 to 10.2
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 0.080
0 to 0.1
Sulfur (S), % 0 to 0.020
0 to 0.0050
Titanium (Ti), % 0.020 to 0.25
0.28 to 0.4
Tungsten (W), % 3.0 to 4.4
0