What is the composition of Incoloy 800H?

Incoloy 800H Steel is a nickel-based alloy steel with excellent high-temperature strength and corrosion resistance. The following is an analysis of its advantages, performance analysis and chemical composition:

1. Advantages of Incoloy 800H

High temperature strength: Incoloy 800H can still maintain high strength and hardness at high temperatures, has good creep resistance and lasting strength, and can work stably for a long time in high temperature environments.

Corrosion resistance: Incoloy 800H has excellent corrosion resistance and can maintain stability in a variety of corrosive environments, such as high-temperature oxidation, sulfidation, chlorination and other environments.

Processing performance: Incoloy 800H has good processing performance and is easy to carry out processes such as smelting, casting, welding and machining.

Fatigue resistance: Under repeated loads, Incoloy 800H shows good fatigue resistance, which can extend the service life of the product.

2. Performance analysis of Incoloy 800H

Physical properties: Incoloy 800H Nickel Alloy Steel has good thermal conductivity and resistivity, as well as a low thermal expansion coefficient. These physical properties make it stable in high temperature environments.

Mechanical properties: Incoloy 800H has high yield strength, tensile strength and hardness, and has high creep resistance and can bear load for a long time at high temperatures.

Corrosion resistance: The corrosion resistance of Incoloy 800H is mainly attributed to its high nickel content and appropriate elements such as chromium, molybdenum and aluminum. These elements work together to make the alloy exhibit good stability in a variety of corrosive environments.

3. Chemical composition of Incoloy 800H

The chemical composition of Incoloy 800H is as follows (mass percentage):

Nickel (Ni): 32.0%～35.0%
Chromium (Cr): 19.0%～21.0%
Iron (Fe): balance
Carbon (C): ≤0.10%
Silicon (Si): ≤1.5%
Manganese (Mn): ≤2.0%
Phosphorus (P): ≤0.04%
Sulfur (S): ≤0.03%
Aluminum (Al): ≤0.5%
Titanium (Ti): ≤0.3%
Boron (B): ≤0.02%
Copper (Cu): ≤1.0%
Magnesium (Mg): ≤0.1%

The main elements of Nickel Alloy 800H Incoloy 800H are nickel and chromium. The content of these two elements directly affects the corrosion resistance and high temperature strength of the alloy. In addition, reasonable composition control also ensures its performance in other aspects, such as processing performance, physical properties and mechanical properties. These properties make Incoloy 800H an advantageous material in high temperature and corrosive environments.