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Nickel 686 vs. AWS E309H

Nickel 686 belongs to the nickel alloys classification, while AWS E309H belongs to the iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is AWS E309H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
34
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 780
620

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
20
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
3.7
Embodied Energy, MJ/kg 170
52
Embodied Water, L/kg 300
180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 2.6
4.0
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.010
0.040 to 0.15
Chromium (Cr), % 19 to 23
22 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 5.0
55.8 to 65.5
Manganese (Mn), % 0 to 0.75
0.5 to 2.5
Molybdenum (Mo), % 15 to 17
0 to 0.75
Nickel (Ni), % 49.5 to 63
12 to 14
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