Incoloy 800 (UNS N08800) ASTM Specification Overview
Incoloy 800 is an iron-nickel-chromium alloy designed for excellent strength and oxidation resistance at elevated temperatures. It is commonly used in high-temperature industrial applications.
🔹 Common ASTM Specifications for Incoloy 800
| Product Form | ASTM Specification | Description |
|---|---|---|
| Plate, Sheet, Strip | ASTM B409 | Covers cold-rolled and hot-rolled Incoloy 800 flat products |
| Bar, Rod | ASTM B408 | Standard for hot/cold-finished bar and rod products |
| Seamless Pipe & Tube | ASTM B407 | For seamless pipe and tube used in high-temp services |
| Welded Pipe & Tube | ASTM B514 (pipe), ASTM B515 (tube) | For welded pipe/tube in heat-resistant applications |
| Forgings, Flanges | ASTM B564 | Covers forged products, including flanges and fittings |
🔹 Typical Applications of Incoloy 800
Heat exchangers
Furnace components
Petrochemical processing equipment
Nuclear steam generator tubing
Superheater and reheater tubing in power plants





