Alloy 800HT UNS N08811 Overview

Alloy 800HT UNS N08811 is a nickel-iron-chromium superalloy known for its excellent high-temperature strength, oxidation resistance, and creep rupture properties. This material is widely used in demanding industrial applications where reliability under extreme conditions is critical.

Key Properties and Characteristics

The alloy offers outstanding mechanical properties, including high tensile strength and good ductility, even at elevated temperatures up to 1500°F (815°C). Its composition includes controlled amounts of titanium and aluminum, which contribute to its stability and performance in corrosive environments.

Industrial Applications

Common uses of Alloy 800HT include heat treatment equipment, furnace components, and nuclear reactor systems. It is also employed in chemical processing and power generation industries due to its resistance to carburization and oxidation.

Performance and Durability

This alloy maintains structural integrity under prolonged exposure to high temperatures and aggressive atmospheres. Its low carbon content minimizes sensitization, ensuring long service life in critical applications.

Frequently Asked Questions

What is the maximum operating temperature for Alloy 800HT?

It can withstand temperatures up to 1500°F (815°C) continuously, with short-term excursions possible in specific conditions.

How does Alloy 800HT compare to other nickel alloys?

It offers superior creep rupture strength and oxidation resistance compared to many standard nickel-chromium alloys.

Is Alloy 800HT weldable?

Yes, it can be welded using common techniques, though post-weld heat treatment may be recommended for optimal performance.

Get High-Quality Alloy 800HT Materials

For reliable sourcing of Alloy 800HT UNS N08811, visit our specialized supplier to ensure material certification and consistent performance. This superalloy is ideal for critical high-temperature components across various industries.

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