INCOLOY 800H / 800HT Plates Suppliers - Nickel Alloy 800H / 800HT Plates , UNS N08810 / N08811 / N08800 

Similar Specifications : ASTM B 409, B 408, B 407, B 564

Incoloy 800, 800H, and 800HT are nickel-iron-chromium alloys with good strength and excellent resistance to oxidation and carburization in high-temperature exposure.

These 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.

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.

Incoloy 800 is primarily used in applications 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 is a registered trademark of the INCO Family of companies 

 

Characteristics of Nickel Alloy 800H/HT Plates 

• High temperature strength
• High creep rupture strength
• Resistant to oxidation and carburization in high temperature environments
• Good corrosion resistance in many acidic environments
• Good resistance to many sulfur-containing atmospheres
   

Chemical Composition of Incoloy Alloy 800H / Alloy 800HT Plates 

Mechanical Properties Data of Incoloy 800H / 800HT Plates 

Applications of Alloy 800 Plates 

• Industrial furnace components and equipment
• Petrochemical and chemical processing
• Equipment for Heat-Treating
• Pressure vessels and heat exchangers
• Hydrocarbon cracking

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