corrosion resistance nickel Inconel Alloy 686 for rod

corrosion resistance nickel Inconel Alloy 686 for rod

INCONEL alloy 686 (UNS N06686/W.Nr. 2.4606) is a single-phase, austenitic Ni-Cr-Mo-W alloy offering outstanding corrosion-resistance in a range of severe environments. Its high nickel (Ni) and molybdenum (Mo) provide good resistance in reducing conditions, and high chromium (Cr) offers resistance to oxidizing media. Molybdenum (Mo) and tungsten (W) aid resistance to localized corrosion such as pitting. Iron (Fe) is closely controlled to enhance properties. Low carbon (C) helps minimize grain boundary precipitation to maintain corrosion-resistance in the heat-affected zones of welded joints. Resistance to general, pitting and crevice corrosion increases with the alloying (Cr+Mo+W) content, and INCONEL alloy 686 scores higher than competitive materials.

Available Product Forms:
Rod, bar, forgings, wire, plate, sheet, strip, flanges, Forged fittings, valve parts.

Specifications

INCONEL alloy 686 is designated as UNS N06686, Werkstoff Number 2.4606. It is listed in NACE MR-01-75, API 6A718..

Rod, Bar, Wire and Forging Stock:  ASTM B564, ASTM B574.
Plate, Sheet and Strip: - ASTM B575

flanges, Forged fittings, valve parts: ASTM B462

Chemical Composition

Nickel............................................................................Balance

Chromium....................................................................19.0-23.0

Molybdenum ...............................................................15.0-17.0

Tungsten..........................................................................3.0-4.4

Titanium.......................................................................0.02-0.25

Iron................................................................................2.0 max.

Carbon........................................................................0.01 max.

Manganese .................................................................0.75 max.

Sulfur ..........................................................................0.02 max.

Silicon .........................................................................0.08 max.

Phosphorus ................................................................0.04 max.

mechanical property:

specifications:

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