Inconel Alloys

The Inconel Alloys are highly engineered to offer a superior combination of heat resistance, high temperature corrosion resistance, toughness and strength for the most demanding applications.

Inconel Alloy 600

Inconel 600 is a nickel-chromium alloy used for applications that require corrosion and high temperature resistance. This nickel alloy was designed for service temperatures from cryogenic to elevated temperatures in the range of 2000° F. It is non-magnetic, has excellent mechanical properties, and presents the desirable combination of high strength and good weldability under a wide range of temperatures. The high nickel content in Inconel 600 enables it to retain considerable resistance under reducing conditions, makes it resistant to corrosion by a number of organic and inorganic compounds, gives it excellent resistance to chloride-ion stress-corrosion cracking and also provides excellent resistance to alkaline solutions. Typical applications of this nickel alloy include the chemical, pulp and paper, aerospace, nuclear engineering and heat treating industries.

Inconel Alloy 601

Inconel 601 is a nickel-chromium alloy used for applications that require resistance to corrosion and heat. This nickel alloy stands out due to its resistance to high temperature oxidation, remaining highly resistant to oxidation through 2200°F. Alloy 601 develops a tightly adherent oxide scale which resists spalling even under conditions of severe thermal cycling. This nickel alloy has good high temperature strength, and retains its ductility after long service exposure. It has good resistance to aqueous corrosion, high mechanical strength, and is readily formed, machined and welded. Inconel 601’s properties make it a material of broad utility in fields like thermal processing, chemical processing, pollution control, aerospace, and power generation. However, alloy 601 is not suggested for use in strongly reducing, sulfur bearing environments.

Inconel Alloy 625

Inconel Alloy 625 is a nickel-based superalloy that possesses high strength properties and resistance to elevated temperatures. It also demonstrates remarkable protection against corrosion and oxidation.

Inconel 625 has excellent strength at temperatures up to 816℃. At higher temperatures, its strength is generally lower than that of other solid solution strengthened alloys. Inconel 625 has good oxidation resistance at temperatures up to 980℃ and shows good resistance to aqueous corrosion, but is relatively moderate compared to other more capable corrosion resistant alloys.

Inconel Alloy 690

Inconel 690 is a nickel-chromium alloy. It has high resistance to hot gases or oxidizing chemicals due to the presence of high chromium content. The following datasheet gives an overview of Inconel 690.

Inconel 690 can be machined using conventional machining methods which are used for iron-based alloys. Machining operations are performed using commercial coolants. High-speed operations such as grinding, milling or turning, are performed using water-base coolants.

Inconel Alloy 725

INCONEL® 725 (UNS N07725) is a nickelchromium-molybdenum-niobium alloy that is highly resistant to corrosion and is age hardenable for extremely high strength. It has essentially the same corrosion resistance as INCONEL alloy 625, which is widely used in a broad range of severely corrosive environments. The strength of age-hardened Alloy 725 is of the order of twice that of annealed alloy 625. Because the strength of

Inconel alloy 718
For most applications, INCONEL alloy 718 is specified as: solution annealed and precipitation hardened (precipitation hardening, age hardening, and precipitation heat treatment are synonymous terms). Alloy 718 is hardened by the precipitation of secondary phases (e.g. gamma prime and gamma double-prime) into the metal matrix. The precipitation of these nickel – (aluminum, titanium, niobium) phases is induced by heat treating in the temperature range of 1100 to 1500°F.
For a proper metallurgical reaction the aging constituents (aluminum, titanium, niobium) must be in solution. If they are precipitated as some other phase or are combined in some other form, they will not precipitate correctly and the full strength of the alloy with not be achieved.
To perform this function the material must first be solution heat treated (solution annealed is a synonymous term). If the material is to be machined, formed, or welded, it typically is purchased in the mill annealed or stress relieved condition. The material is then fabricated in its most malleable condition. After fabrication, it can be heat treated as required per the applicable specification.

Inconel Alloy 738

Inconel 738 is a precipitation hardenable nickel-base alloy with superior corrosion resistance and high temperature creep-rupture strength. IN-738 is used in gas turbine blades and other high-temperature industrial applications. American Elements manufactures Inconel 738 in varying compositions and forms such as powder, plate, rod, wire, and sputtering target. We offer standard sizes and shapes in addition to manufacturing unique custom alloys which are tailored to customer requirements. Bulk quantities and term contracts are available for all of our alloy materials.

Inconel Alloy X750

Inconel X750 is an age-hardenable nickel-chromium alloy. It has good corrosion and oxidation resistance and high strength at temperatures up to 700℃. It also has good properties down to cryogenic temperatures. Its corrosion resistance performance is similar to Inconel 600.