Alloy 800HT is a superalloy, also known as N08811. Here is some information about the composition, processing specifications and features of Alloy 800HT superalloy:
Composition: Nickel (Ni): approx. 30-35%.
Iron (Fe): Approx. 395-43.5%
Chromium (CR): about 19-23%.
Aluminum (AL): about 015-0.60%
Titanium (Ti): About 015-0.60%
Carbon (c): 0 max10%
Manganese (MN): 1 max50%
Silicon (Si): 1 max00%
Sulfur (s): 0 max015%
Phosphorus (p): 0 max015%
Processing specifications: Alloy 800HT superalloys can be formed and machined by a variety of common metalworking processes, including:
Cold working: such as cold rolling, cold drawing, cold heading, etc.
Hot processing: such as hot rolling, hot extrusion, etc.
Welding: including TIG welding, MIG welding, arc welding, etc.
Function: Alloy 800HT superalloy has the following main functions:
1.High Temperature Strength: Alloy 800HT has excellent mechanical strength and oxidation resistance at high temperatures, and is able to maintain high yield strength and tensile strength.
2.Corrosion resistance: Alloy 800HT has good corrosion resistance to a variety of corrosive media, including oxidizing, reducing and hydrogen sulfide.
3.Creep and fatigue properties: Alloy 800HT can resist creep deformation under the action of high temperature and continuous stress, and has good fatigue resistance.
4.Dimensional stability: Alloy 800HT has a low coefficient of thermal expansion and can maintain good dimensional stability in high temperature environments.
5.Welding performance: Alloy 800HT has good welding performance, which can be connected and repaired by a variety of welding methods.
Overall, Alloy 800HT superalloys have excellent high-temperature strength, corrosion resistance, creep and fatigue properties, dimensional stability, and good weldability. These functions make it widely used in high-temperature environments such as petrochemical, chemical, electric power, and nuclear industries, such as furnace tubes, heat exchangers, catalyst tubes, tube bundles, burners, and high-temperature reactors.