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Nickel 686 vs. AWS E240

Nickel 686 belongs to the nickel alloys classification, while AWS E240 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 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is AWS E240.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
17
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 780
770

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1340
1350
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 12
3.0
Embodied Energy, MJ/kg 170
42
Embodied Water, L/kg 300
160

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 2.6
3.9
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.060
Chromium (Cr), % 19 to 23
17 to 19
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 5.0
58.6 to 68.4
Manganese (Mn), % 0 to 0.75
10.5 to 13.5
Molybdenum (Mo), % 15 to 17
0 to 0.75
Nickel (Ni), % 49.5 to 63
4.0 to 6.0
Nitrogen (N), % 0
0.1 to 0.3
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
0