About Alloy
Incoloy 800 is a type of nickel-chromium-iron alloy that is known for its excellent resistance to corrosion, high-temperature oxidation, and creep. It is a versatile alloy that is used in a wide range of applications, including in the chemical processing industry, power generation, and in the manufacture of heat exchangers, boilers, and other high-temperature equipment.
The alloy is composed of nickel (Ni), chromium (Cr), and iron (Fe) as the primary elements, with additions of manganese (Mn), silicon (Si), and copper (Cu) to enhance its properties. The composition of Incoloy 800 is typically around 32% nickel, 21% chromium, and 47% iron, with the remaining balance made up of the other alloying elements.
One of the key benefits of Incoloy 800 is its high resistance to corrosion and high-temperature oxidation. It is particularly resistant to pitting and crevice corrosion, making it an ideal material for use in harsh environments such as seawater, acidic or alkaline solutions, and high-temperature water.
Incoloy 800 is also known for its good strength and creep resistance at high temperatures. It can be used in temperatures up to 900°C (1650°F), making it an ideal material for applications that require high-temperature performance.
Incoloy 800 is also valued for its good weldability, which makes it a popular choice for applications that require welding or fabrication. It can be welded using a variety of techniques, including shielded metal arc welding, gas tungsten arc welding, and gas metal arc welding.
In addition to its use in the chemical processing industry, power generation, and the manufacture of high-temperature equipment, Incoloy 800 is also used in other applications that require high-strength, corrosion-resistant materials. These include in the aerospace industry, marine engineering, and in the manufacture of valves, pumps, and other high-temperature components.
Overall, Incoloy 800 is a highly versatile alloy that is valued for its high resistance to corrosion and high-temperature oxidation, its good strength and creep resistance at high temperatures, and its good weldability. Its unique properties make it an ideal material for a wide range of applications, from the chemical processing industry to the aerospace industry.
Product Form
Bar: ASTM B408, AMS 5766
Forging: ASTM B564, AMS 5766
Sheet/Plate/Strip: ASTM B409, AMS 5871
Wire: ASTM B408
Pipe: ASTM B407, ASTM B514, ASTM B163
Chemical Composition
|
Composition |
Ni |
Cr |
Fe |
C |
Mn |
Si |
Cu |
S |
Al |
Ti |
P |
|
|
Content (%) |
Min |
30 |
19 |
Bal. |
0.15 |
0.15 |
||||||
|
Max |
35 |
23 |
0.1 |
1.5 |
1 |
0.75 |
0.015 |
0.6 |
0.6 |
0.03 |
||
Property
|
Tensile Strength (σb/MPa) |
Yield Strength (σp0.2/MPa) |
Elongation (σ5/%) |
|
520 |
205 |
30 |
Application
Chemical Processing: Incoloy 800 is commonly used in the chemical processing industry due to its ability to withstand high temperatures and resist corrosion from chemicals and sulfur compounds. It is used in the production of polyester resins, epoxy resins, caustic soda, and other chemicals .
Heat Exchangers: Incoloy 800 is widely utilized in the manufacturing of heat exchangers in the petrochemical industry. Its excellent oxidation and corrosion resistance, along with its ability to withstand high temperatures, make it suitable for handling harsh liquids and gases in heat exchanger applications.
Oil Refineries: Incoloy 800 pipes are extensively used in oil refineries. They can withstand the high temperatures, pressures, corrosive environments, and hydrogen attacks commonly encountered in oil refining processes. Incoloy 800 pipes are ideal for reactors and tubes in oil refineries due to their excellent resistance to corrosion and oxidation
Power Generation: Incoloy 800 is also employed in the power generation industry for various applications. Its resistance to corrosion and creep deformation makes it suitable for use in power boilers, steam generators, exhaust systems, and other power generation equipment. Incoloy 800 pipes are known for their high-temperature strength and corrosion resistance properties.
Marine Applications: Incoloy 800 is used in marine environments due to its corrosion resistance and strength properties. It is commonly used in the construction of offshore rigs, pipelines, and platforms. Incoloy 800 pipes are ideal for seawater handling applications, such as seawater cooling systems, in both petrochemical and marine industries
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