Hangbo Alloy Group supplies a variety of materials, including round bars, plates, strips, seamless pipes, forged products, and wire. Below is a comprehensive description of Incoloy 800HT.
Incoloy 800HT Detailed Introduction
INCOLOY 800HT(UNS N08811) alloys belong to the category of super austenitic stainless steels. These alloys have nickel-chromium-iron as the base metals, with additives such as molybdenum, copper, nitrogen and silicon. These alloys are known for their excellent strength at elevated temperatures and good corrosion resistance in a variety of corrosive environments.
| Standard | Equivalent Grade |
|---|---|
| ASTM | UNS N08811 |
| DIN | W.Nr.1.4959 |
Incoloy 800HT Standards for Products
| Product Form | ASTM Standards |
|---|---|
| Plates/Sheets | ASTM B409 |
| Round Bars | ASTM B408 |
| Seamless Pipes | ASTM B407 |
| Welded Tube | ASTM B515 |
| Forgings | ASTM B564 |
Incoloy 800HT Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 30.0 - 35.0 |
| Chromium (Cr) | 19.0 - 23.0 |
| Iron (Fe) | ≥39.5 |
| Carbon (C) | 0.06-0.10 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 1.00 |
| Sulfur (S) | ≤ 0.015 |
| Titanium (Ti) | 0.15 - 0.60 |
| Copper (Cu) | ≤ 0.75 |
| Aluminum (Al) | 0.15 - 0.60 |
Incoloy 800HT Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1357 - 1385 °C |
Incoloy 800HT Material Characteristics
• Exceptional resistance to oxidation and carburization.
• High strength and stability at elevated temperatures, particularly suited for higher thermal stress applications.
• Good weldability and formability.
• Enhanced creep resistance compared to standard Incoloy 800.
Applications of Incoloy 800HT
• Components in heat exchangers and reactors in petrochemical processing.
• Applications in furnace construction, including tubes and baffles.
• Oil and gas industry equipment requiring high-temperature strength.
• Power generation components, such as superheaters and boiler tubes.











