SUS630 duplex steel is a metal material with excellent properties, and it has a wide range of applications in many fields. The following is an introduction to SUS630 duplex steel.
1. Composition and structure.
SUS630 duplex steel is an alloy containing elements such as iron, chromium, nickel, etc., in which the chromium content is higher, about 22%. This alloy has an austenitic and ferritic two-phase structure, hence the name duplex steel. During the manufacturing process, the ratio of the two phases can be adjusted to achieve the best performance by controlling the composition and cooling rate.
2. Mechanical properties.
SUS630 duplex steel has excellent mechanical properties, and its tensile strength, yield point and elongation are all high. Compared to traditional austenitic stainless steels, SUS630 duplex steel has higher strength and better toughness, making it more suitable for manufacturing components that are subjected to high stresses and impacts.
3. Corrosion resistance.
SUS630 duplex steel has good corrosion resistance in many environments, especially in some environments containing chloride ions, and its corrosion resistance is more prominent. In addition, due to its duplex structure, SUS630 duplex steel is not easily deformed during processing, making it suitable for manufacturing components that require high-precision dimensions.
Fourth, the manufacturing process.
SUS630 duplex steel can be manufactured using a variety of manufacturing processes, such as casting, forging, rolling, etc. During the manufacturing process, the cooling rate should be controlled to obtain the best two-phase ratio. In addition, in order to improve the corrosion resistance of SUS630 duplex steel, passivation can be carried out during the manufacturing process.
Fifth, the field of application.
Due to its excellent mechanical properties and corrosion resistance, SUS630 duplex steel is widely used in petroleum, chemical, food, pharmaceutical and other industries, especially in some parts that require high strength, corrosion resistance and easy processing. For example, it can be used to manufacture components such as pressure vessels, pipes, valves, etc.
6. Comparison and Selection.
Compared to traditional austenitic stainless steels, SUS630 duplex steel has higher strength and better toughness, making it more suitable for manufacturing components that are subjected to high stresses and impacts. In addition, due to its duplex structure, SUS630 duplex steel is not easily deformed during processing, making it suitable for manufacturing components that require high-precision dimensions. When choosing, comparison and selection should be made according to the actual application needs.
7. Future development.
With the continuous progress of science and technology and the continuous improvement of application requirements, SUS630 duplex steel will be further developed and improved in the future. Future developments include improving the strength and toughness of materials, further improving corrosion resistance, and developing new manufacturing processes. These developments will provide a broader prospect for the application of SUS630 duplex steel in more fields.
In conclusion, SUS630 duplex steel is a metal material with excellent properties, which is widely used in petroleum, chemical, food, pharmaceutical and other industries. It has the advantages of high strength, good corrosion resistance and easy processing, which brings many conveniences and benefits to industrial manufacturing and production. In the future, with the continuous progress of material science and the continuous improvement of application needs, SUS630 duplex steel will still have broad development prospects.