corrosion resistance nickel Incoloy Alloy 925 for wire

corrosion resistance nickel Incoloy Alloy 925 for wire

Incoloy Alloy 925

Common Trade Names: Incoloy 925; Alloy 925:
Incoloy Alloy 925 (UNS N09925) is an agehardenable nickel-iron-chromium alloy with additions of molybdenum, copper, titanium and aluminum. 

The nickel content is sufficient for protection against chloride-ion stress corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing chemicals. The molybdenum aids resistance to pitting and crevice corrosion. The alloy’s chromium content provides resistance to oxidizing environments. The titanium and aluminum additions cause a strengthening reaction during heat treatment.

INCOLOYalloy 925 is used in various applications requiring a combination of high strength and corrosion resistance. Because of the alloy’s resistance to sulfide stress cracking and stress-corrosion cracking in “sour” (H2S containing) crude oil and natural gas, it is used for down-hole and surface gaswell components including tubular products, valves, hangers, landing nipples, tool joints and packers. The alloy is also useful for fasteners, marine and pump shafting and high-strength piping systems

Available Product Forms: 

Rod, bar, forging stock and wire, Flanges, Forged fittings, valve parts.

Specifications

Rod, Bar, Wire and Forging Stock: ASTM B637

flanges, Forged fittings, valve parts: ASTM B637

Chemical Composition

Nickel...........................................................................42.0-46.0

Chromium....................................................................19.5-22.5

Iron...................................................................................22 min

Molybdenum....................................................................2.5-3.5

Copper.............................................................................1.5-3.0

Titanium...........................................................................1.9-2.4

Aluminum.........................................................................0.1-0.5

Manganese ...................................................................1.0 max.

Silicon ...........................................................................0.5 max.

Niobium.........................................................................0.5 max.

Carbon ........................................................................0.03 max.

Sulfur ..........................................................................0.03 max. 

mechanical property:

specifications:

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