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Nickel 686 vs. AWS E312

Nickel 686 belongs to the nickel alloys classification, while AWS E312 belongs to the iron alloys. They have a modest 34% 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 (11, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is AWS E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
25
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 780
740

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1340
1360
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 70
20
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 12
3.6
Embodied Energy, MJ/kg 170
52
Embodied Water, L/kg 300
200

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 21
24
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.15
Chromium (Cr), % 19 to 23
28 to 32
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 5.0
52.3 to 63.5
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
8.0 to 10.5
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