INCONEL 686

An alloy designed for outstanding corrosionresistance in a wide range of severe environments. The alloy is used in the most severe environments encountered in chemical processing, pollution control, pulp and paper production, and treatment of industrial and municipal wastes. Chemical processing uses include heat exchangers, reaction
vessels, evaporators and transfer piping. Air pollution control applications are stack liners,ducts, dampers, scrubbers, stack-gas reheaters,fans and housings.

Pipe, tube, sheet, strip, plate, round bar, forging stock,
hexagon and wire.

UNS N06686
ASTM B 163, B 462, B 564,
B 574, B 575, B 619, B 622,
B 626, B 751, B 775, B 829,
B 906, F 467, F 467M, F 468,
F 468M
DIN 17744, 17750 – 17754
Werkstoff Nr. 2.4606
ASME Code Case 2198
ASME SB-163, SB-564,
SB-574, SB-575, SB-619,
SB-622, SB-626, SB-751,
SB-775, SB-829, SB-906
VdTÜV 515
NACE MR-0175/ISO 15156
SAE/AMS J2295, J2271, J2655,
J2280, J2485

Cr.......19.0 – 23.0
Mo..... 15.0 – 17.0
W............3.0 – 4.4
Ti.......0.02 – 0.25
Fe........... 1.0 max.
C...........0.01 max.
Mn........0.75 max.
S...........0.02 max.
Si..........0.08 max.
P............0.04 max.
Ni............. Balance

Density, Ib/in³.........................................................................0.315
g/cm³......................................................................... 8.73
Melting Range, °F....................................................2440 – 2516
°C....................................................1338 – 1380
Specific Heat, Btu/lb•°F.....................................................0.089
J/kg•°C............................................................ 373
Permeability at 200 Oersted (15.9 kA/m).....................1.001
Coefficient of Expansion, 70 – 200°F, 10^-6 in/in •°F..... 6.67
20 – 100°C, μm/m • °C........11.97
Electrical Resistivity, ohm •circ mil/ft.............................744.4
μΩ•m...............................................1.237