A182 F91 is a grade of low alloy steel that is commonly used in high-temperature and high-pressure applications, such as power generation and chemical processing. It is a type of Cr-Mo alloy steel that contains chromium, molybdenum, and vanadium, which provides it with excellent strength and corrosion resistance properties.

The chemical composition of A182 F91 low alloy steel includes:

– Chromium

(Cr): 8.0-9.5%
– Molybdenum (Mo): 0.85-1.05%
– Vanadium (V): 0.18-0.25%
– Carbon (C): 0.08-0.12%
– Silicon (Si): 0.20-0.50%
– Manganese (Mn): 0.30-0.60%
– Phosphorus (P): 0.020% max
– Sulfur (S): 0.010% max

The unique combination of elements in A182 F91 low alloy steel provides it with excellent high-temperature strength, corrosion resistance, and oxidation resistance. It can operate at temperatures up to 600°C (1112°F) and is resistant to thermal fatigue, creep, and corrosion in high-temperature environments.

Overall, A182 F91 low alloy steel is a popular and versatile material that is widely used in various industries due to its excellent properties, including high-temperature strength, corrosion resistance, and oxidation resistance.

In addition to power generation and chemical processing, A182 F91 low alloy steel is used in various applications across different industries due to its excellent high-temperature strength and corrosion resistance properties. Here are some other applications of A182 F91 low alloy steel:

1. Oil and gas – A182 F91 low alloy steel is used in oil and gas applications, including pipelines, valves, and drilling equipment, due to its excellent high-temperature strength and resistance to hydrogen sulfide.

2. Aerospace – A182 F91 low alloy steel is used in aerospace applications, including turbine components and exhaust systems, due to its high-temperature strength and oxidation resistance.

3. Automotive – A182 F91 low alloy steel is used in automotive applications, including exhaust systems, due to its high-temperature strength and corrosion resistance.

4. Petrochemical – A182 F91 low alloy steel is used in petrochemical applications, including heat exchangers and reactors, due to its excellent corrosion resistance and high-temperature strength.

5. Nuclear – A182 F91 low alloy steel is used in nuclear applications, including reactor components and steam generators, due to its high-temperature strength and resistance to radiation-induced embrittlement.

Overall, A182 F91 low alloy steel is a versatile material that is widely used in various industries due to its excellent properties, including high-temperature strength, corrosion resistance, and radiation resistance.