Alloy 800 UNS N08800: Properties, Applications, and Performance Guide

Alloy 800 UNS N08800 is a nickel-iron-chromium alloy renowned for its exceptional high-temperature strength and resistance to oxidation and carburization. Its balanced composition makes it ideal for demanding industrial environments.

Key Properties of Alloy 800

The material offers excellent mechanical properties and corrosion resistance, maintaining structural integrity under extreme thermal and chemical exposure. Its stability stems from precise control of carbon, aluminum, and titanium content.

High-Temperature Performance

Alloy 800 performs reliably in temperatures up to 1100°F (593°C), resisting scale formation and embrittlement. This makes it suitable for heat-treated components and furnace parts.

Industrial Applications

Common uses include heat exchangers, furnace components, and nuclear reactor systems. Its versatility also extends to chemical processing and power generation equipment.

Corrosion Resistance

The alloy withstands oxidizing and reducing atmospheres, making it effective in sulfur-rich and acidic environments without significant degradation.

Frequently Asked Questions

What is the maximum service temperature for Alloy 800?
It operates effectively up to 1100°F continuously, with short-term tolerance to higher ranges.

Is it weldable?
Yes, using compatible filler metals and standard techniques, though post-weld heat treatment may be required.

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