1. Definition of Incoloy 800HT alloy
Incoloy 800HT alloy is a nickel-chromium-iron alloy with excellent high temperature strength and corrosion resistance. It is an improved model of Incoloy800 alloy, which mainly improves its strength and oxidation resistance at high temperature.
Second, the chemical composition of Incoloy 800HT alloy
The chemical composition of Incoloy 800HT alloy is shown in the table below:
| Composition | Content (%) |
| ——— | ——– |
| Nickel | 30.0-35.0 |
| Chrome | 19.0-23.0 |
| Iron | 39.5-46.0 |
| Copper | ≤0.75 |
| Aluminum | 0.15-0.60 |
| Carbon | ≤0.10 |
| Manganese | ≤1.50 |
| phosphorus | ≤0.03 |
| sulfur | ≤0.015 |
3. Production standard of Incoloy 800HT alloy
There are many production standards for Incoloy 800HT alloy, the common ones are ASTM B407, ASTM B408, ASTM B409, ASTM B514, etc. These standards stipulate the chemical composition, mechanical properties, corrosion resistance, heat treatment and other requirements of Incoloy 800HT alloy.
4. Corrosion resistance of Incoloy 800HT alloy
Incoloy800HT alloy has excellent corrosion resistance and can be used in a variety of corrosive media for a long time. Its corrosion resistance at high temperature is particularly outstanding, and it can withstand the corrosion of various acids, alkalis, salts and other media. Specifically, Incoloy 800HT alloy has good corrosion resistance in the following media:
1. Oxidizing acid corrosion medium: such as nitric acid, sulfuric acid, phosphoric acid, etc.
2. Reducing acid corrosion medium: such as hydrochloric acid, hydrofluoric acid, etc.
3. Alkaline corrosion medium: such as potassium hydroxide, sodium hydroxide, etc.
4. Chloride medium: such as sodium chloride, ammonium chloride, etc.
5. Nitrate medium: such as potassium nitrate, ammonium nitrate, etc.
5. High temperature resistance of Incoloy 800HT alloy
Incoloy800HT alloy has excellent high temperature performance and can work stably for a long time in the temperature range. Its maximum service temperature can reach 1100°C, and it has excellent oxidation resistance and thermal expansion properties. At high temperature, it can withstand high stress and high creep rate, and it is not easy to deform and break.
6. Typical application scope of Incoloy 800HT alloy
Incoloy800HT alloy is a widely used superalloy material, mainly used in the following fields:
1. Chemical industry: such as the manufacture of alkyl chemicals, oil refining units, chemical equipment, etc.
2. Nuclear industry: such as manufacturing nuclear reactor fuel elements, nuclear reactor internal components, etc.
3. Heat treatment equipment: such as manufacturing furnaces, heating furnaces, etc.
4. Aerospace industry: such as manufacturing engine parts, turbine blades, etc.
5. Food processing equipment: such as manufacturing baking ovens, ovens, etc.
7. Processing and welding of Incoloy 800HT alloy
1. Hot working: Incoloy 800HT alloy can be hot worked, including forging, hot rolling, hot extrusion, etc., but the processing temperature and deformation rate need to be controlled.
2. Cold working: Incoloy 800HT alloy can be cold worked, including cold rolling, stamping, stretching, etc., but attention should be paid to the influence of cold work hardening.
3. Heat treatment: Incoloy 800HT alloy can undergo solution treatment and aging treatment to improve its high temperature strength and mechanical properties.
4. Machining: Incoloy 800HT alloy can be machined, but attention should be paid to the selection of tools and the control of processing parameters.
5. Welding: Incoloy 800HT alloy can be welded by a variety of welding methods, including argon arc welding, electron beam welding, laser welding, etc., but attention should be paid to the selection of welding temperature and welding materials.
8. Recommended welding materials for Incoloy 800HT alloy
When welding Incoloy 800HT alloy, the following welding consumables are recommended:
1. Seamless welded pipe: The production standards of Incoloy 800HT alloy seamless welded pipe include ASTM B407, ASTM B163, etc.
2. Welding wire: The production standards of Incoloy 800HT alloy welding wire include AWS A5.14, ASTM B408, etc.
3. Welding rod: The production standards of Incoloy 800HT alloy welding rod include AWS A5.11, ASTM B408, etc.
9. Material specific gravity of Incoloy 800HT alloy
The density of Incoloy 800HT alloy is 7.94g/cm³.
10. The available product range of Incoloy 800HT alloy
Anton Metal can produce Incoloy 800HT alloy products in various specifications and shapes according to customer needs, including pipes, plates, bars, wires, welding consumables, etc. At the same time, we can also provide relevant technical consultation and after-sales service to ensure that customers can obtain the best performance and effect when using Incoloy 800HT alloy products. Our products comply with international standards, including ASTM, ASME, ISO, etc., and can also be customized according to the special needs of customers. If you have any needs and questions about Incoloy 800HT alloy, please contact our sales staff for consultation and cooperation.
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Post time: Aug-26-2023
