1. Introduction
24CrMoWV12-1 is a type of high chromium ferritic-martensitic heat-resistant stainless steel. It is a heat-resistant steel used mainly in applications where high temperature service and increased strength are needed. The good high-temperature properties of this steel make it ideal for applications involving elevated temperatures. For example, it is especially used as an exhaust valve for automobile and motorcycle engines. It is also used in furnace outlet parts, boiler headers, superheater tubes, and parts in power station combustion systems.
2. Chemical Compositions
The primary chemical composition of 24CrMoWV12-1 is as follows: 23.5–25.5% chromium, 1.6–2.6% molybdenum, 0.08–0.18% copper, 0.6–1% silicon, 0.6–1.2% tungsten, 0.15–1.2% cobalt, and 0.3–0.6% manganese.
3. Manufacturing Process
The manufacturing process of 24CrMoWV12-1 involves several steps. First, the steel is formulated using vacuum arc remelting technology, which allows for a very clean, and high-quality steel. The resulting clean steel is then formed into bars and rods, and then subjected to an aging process, which increases the strength of the steel. Once the aging process is complete, the steel is machined and heat-treated. The finish machining of the steel involves grinding operations, and then polishing the steel to the desired surface finish. The heat treatments that 24CrMoWV12-1 undergoes include annealing, tempering, normalizing, and stress relieving.
4. Mechanical Properties
One of the main characteristics of 24CrMoWV12-1 is its excellent heat resistance. It has a high melting point, and has good strength and excellent corrosion-resistance at elevated temperatures. It is also resistant to oxidization, scaling, and distortion. 24CrMoWV12-1 is particularly resistant to carburization and embrittlement, and can even operate in temperatures of up to 1100℃. 24CrMoWV12-1 also has a very good creep resistance, meaning that it can withstand a significant amount of sustained loading over long periods of time at higher temperatures.
5. Applications
Due to its excellent mechanical and heat-resistance properties, 24CrMoWV12-1 is widely used in a variety of industrial applications. It is often used as an exhaust valve for auto and motorcycle engines, and is also used to make furnace outlets, boiler headers, superheater tubes, power station combustion systems, fertilizer evaporators, condensers, and other similar components. 24CrMoWV12-1 is also suitable for applications involving corrosive elements such as chloride, acetic acid, and water vapor.
6. Conclusion
24CrMoWV12-1 is a high chromium ferritic-martensitic heat-resistant stainless steel. It is a very strong and heat-resistant alloy that is used in a wide range of high temperature applications. It has excellent heat-resistance properties, good strength, and excellent resistance to oxidation and scaling at elevated temperatures. 24CrMoWV12-1 is also resistant to carburization and embrittlement, and has a high melting point. Due to its properties, it is used in a variety of industrial applications, including exhaust valves, boiler headers, superheater tubes, and parts in power station combustion systems.
