As an important category of steel plates, container plates play a pivotal role in modern industry. Due to their special composition and properties, they are mainly used to manufacture pressure vessels to meet the strict requirements of pressure, temperature and corrosion resistance in different industrial scenarios.
Special composition and performance
The chemical composition of container plates is carefully formulated to ensure that they have excellent comprehensive performance. In addition to the basic elements, alloy elements such as chromium, nickel, molybdenum, and vanadium are added according to different use environments and performance requirements. The addition of these elements can effectively improve the strength, toughness, corrosion resistance and high temperature resistance of container plates, making them suitable for various complex working conditions.
In terms of mechanical properties, container plates have excellent strength and toughness. High strength enables them to withstand huge pressure without deformation or cracking; good toughness can avoid brittle fracture under external forces such as impact or vibration, ensuring the safe operation of equipment. At the same time, its good welding performance and processing performance make it easy to make pressure vessels of various shapes and specifications to meet diverse engineering needs.
Rich and diverse classifications
According to different standards, container plates can be classified in many ways. According to the purpose, it can be divided into general pressure vessel steel, low temperature pressure vessel steel, high temperature pressure vessel steel, stainless steel composite steel plate, etc. General pressure vessel steel is suitable for medium and normal temperature, medium and low pressure environment, and is the most widely used basic material; low temperature pressure vessel steel has good low temperature toughness and is suitable for low temperature service environment; high temperature pressure vessel steel can maintain stable performance in high temperature environment and meet the requirements of high temperature working conditions; stainless steel composite steel plate combines the corrosion resistance of stainless steel and the strength of ordinary steel, and is suitable for scenes with special requirements for corrosion resistance.
According to chemical composition, container plates can be divided into carbon steel container plates, low alloy steel container plates and stainless steel container plates. Carbon steel container plates have low cost and good process performance; low alloy steel container plates have significantly improved strength, toughness and corrosion resistance by adding alloy elements; stainless steel container plates are often used in industries with extremely high corrosion resistance requirements such as chemical industry and food due to their excellent corrosion resistance.
Wide application fields
Container plates have a very wide range of applications and play an indispensable role in industries such as petroleum, chemical industry, power stations, boilers, etc. In the petrochemical industry, it is used to manufacture equipment such as reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, and liquefied gas tanks. These equipment need to operate for a long time under harsh conditions such as high temperature, high pressure, and strong corrosion. The high performance of container plates provides reliable guarantee for their safe and stable operation.
In the field of power stations and boilers, container plates are used to manufacture key components such as boiler drums and nuclear reactor pressure vessels. Boiler drums need to withstand high-temperature and high-pressure steam, which requires extremely high strength and high-temperature resistance of materials; nuclear reactor pressure vessels are related to the safe operation of nuclear power plants, and almost stringent standards are imposed on the quality and performance of container plates.
In addition, in the pharmaceutical, food, environmental protection and other industries, container plates are also used to manufacture various storage and reaction vessels to meet the industry’s special requirements for hygiene, corrosion resistance, etc.
Diverse delivery status
The delivery status of container plates mainly includes hot rolling, controlled rolling, normalizing, normalizing + tempering, tempering + quenching (tempering), etc. Different delivery statuses will cause container plates to present different organizations and properties. In the hot-rolled state, the cost of the steel plate is low, but the uniformity of performance is relatively poor; controlled rolling can refine the grains and improve the strength and toughness of the steel plate by precisely controlling the rolling process parameters; normalizing can make the structure of the steel plate uniform and improve the mechanical properties; normalizing + tempering can further eliminate internal stress, improve toughness and dimensional stability; quenching and tempering can make the steel plate obtain the best combination of high strength and good toughness.
The selection of the appropriate delivery state requires comprehensive consideration of factors such as the use conditions, processing technology and cost of the container. For example, for pressure vessels that are subject to greater pressure and impact, the delivery state of quenching and tempering treatment is often used; while for some containers that are more sensitive to cost and have relatively low performance requirements, hot-rolled or normalized container plates may be more suitable.
Post time: Jul-22-2025