Alloy steel in the energy industry is mainly reflected in its excellent physical and chemical properties, such as corrosion resistance, high temperature strength, oxidation resistance, stress corrosion cracking resistance and good machinability. ‌

1. Corrosion resistance: Alloy steel, such as Hastelloy has excellent corrosion resistance and can resist the attack of sulfuric acid, hydrochloric acid, chlorides and other strong acidic media. ‌This is particularly important in oil and gas extraction, processing and chemical processing, because it can protect equipment and pipelines from corrosion and extend service life1. ‌

2. High temperature strength: Alloy steel maintains high strength under high temperature conditions, which is very critical for some high temperature environment applications in the energy field. ‌For example, it plays an important role in high temperature chemical reactors, petrochemical processing equipment, etc. ‌

3. Oxidation resistance: Due to its special alloy composition, alloy steel exhibits excellent oxidation resistance, which helps to maintain stability in oxidizing environments, which is very beneficial for applications in high temperature atmospheres in the energy field. ‌‌

4. Machinability: Alloy steels have relatively good machinability, which is important for manufacturing complex components such as energy equipment and pipelines. For example, Hastelloy is widely used in chemical processing, oil and gas extraction, oil refining, fertilizer production, etc., for the manufacture of equipment such as heat exchangers, reactors, pipelines, pumps and valves.‌