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AWS E2594 vs. Nickel 686

AWS E2594 belongs to the iron alloys classification, while nickel 686 belongs to the nickel 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 AWS E2594 and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 17
51
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 850
780

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 16
9.8
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 22
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.3
12
Embodied Energy, MJ/kg 60
170
Embodied Water, L/kg 190
300

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 30
24
Strength to Weight: Bending, points 25
21
Thermal Diffusivity, mm2/s 4.3
2.6
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.010
Chromium (Cr), % 24 to 27
19 to 23
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.8 to 63.8
0 to 5.0
Manganese (Mn), % 0.5 to 2.0
0 to 0.75
Molybdenum (Mo), % 3.5 to 4.5
15 to 17
Nickel (Ni), % 8.0 to 10.5
49.5 to 63
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4