Inconel 800 Bolts with World Wide Shipping

Lightning Bolt specializes in hard-to-find and exotic alloy bolting. One of those alloys we excel in is Inconel. Also known as Incoloy 800, 800H, and 800HT is a nickel-iron-chromium alloys with good strength and excellent resistance to oxidation and carburization in high-temperature exposure.

These alloys are commonly made into nuts, bolts, studs, and washers for their high resistance to corrosive environments. Such nickel steel alloys are identical except for the higher level of carbon in alloy 800H, and the addition of up to 1.20 percent aluminum and titanium in alloy 800HT. It should be noted that Incoloy 800 was the first of these alloys and it was slightly modified into Incoloy 800H. Incoloy 800HT has further modifications to the combined titanium and aluminum levels (.85-1.20%) to ensure optimum high temperature properties.

The nickel alloy is dual certified (800H/HT) and combines the properties of both forms. Incoloy 800H/HT alloy was intended for high temperature structural applications. The nickel content makes the alloys highly resistant to both chloride stress-corrosion cracking and to embrittlement from precipitation of sigma phase. The general corrosion resistance is excellent. In the solution annealed condition, alloys 800H and 800HT have superior creep and stress rupture properties.

Common applications of Incoloy 800 is in eviroments with temperatures up to 1100° F, where alloys 800H and 800HT are normally used in temperatures above 1100° F where resistance to creep and rupture is required. The chemical balance allows the nickel steel alloy to exhibit excellent resistance to carburization, oxidation and nitriding atmospheres. Incoloy 800HT will not become embrittled even after long periods of usage in the 1200-1600° F range where many stainless steels become brittle.

Excellent cold forming characteristics typically associated with the nickel-chromium alloys are exhibited with 800HT. When cold formed extensively the grain size produces a visibly undulated surface called “orange peel”. Incoloy 800HT can be welded by the common techniques used on stainless steels.

Incoloy® alloy 800 is a widely used material of construction for equipment that must have high strength and resist oxidation, carburization, and other harmful effects of high-temperature exposure. (For high temperature applications requiring optimum creep and rupture properties, Incoloy® alloys 800H and 800HT® are used).

The chromium in the alloy imparts resistance to oxidation and corrosion. The high percentage of nickel maintains an austenitic structure so that the alloy is ductile. the nickel content also contributes resistance to scaling, general corrosion, and stress-corrosion cracking. The iron content provides resistance to internal oxidation.

Incoloy® alloy 800 is used in a variety of applications involving exposure to corrosive environments and high temperatures. It is used for heat-treating equipment such as baskets, trays and fixtures. In chemical and petrochemical processing the alloy is used for heat exchangers and other piping systems in nitric acid media especially where resistance to chloride stress-corrosion cracking is required.

In nuclear power plants, it is used for steam-generator tubing. The alloy is often used in domestic appliances for sheathing of electric heating elements. In the production of paper pulp, digester liquid heaters are often made of alloy 800. In petroleum processing , the alloy is used for heat exchangers that air-cool the process stream.

Possible applications:

• Ethylene furnace quench boilers

• Hydrocarbon cracking

• Valves, fittings and other components exposed to corrosive attack from 1100-1800° F

• Industrial furnaces

• Heat-treating equipment

• Chemical and petrochemical processing

• Super-heater and re-heaters in power plants

• Pressure vessels

• Heat exchangers

Alloys 800H/HT are used in a variety of applications involving exposure to corrosive environments and high temperatures such as heat treating equipment, chemical and petrochemical processing, nuclear power plants and the paper pulp industry. Heat-treating equipment such as baskets, trays, and fixtures employ Incoloy 800H/HT.

Chemical and petrochemical processing industries use the alloys for heat exchangers and other piping systems in nitric acid media especially where resistance to chloride stress-corrosion cracking is required. Power plants use them for super-heater and re-heater tubing.

For hard-to-find alloys such as Inconel 800, contact Lightning Bolt for all of your corrosive resistant fasteners.

For More Information or to Place Orders

To learn more about our products, or to place an order, please call (225) 272-6200 or send an email to sales@lightningbolt.cc.  For calls placed from outside of the United States, please call 001-225-272-6200.

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