SUS321, also known as AISI 321, is a stainless steel material widely used in various industrial fields. Known for its excellent corrosion resistance and high temperature properties, it performs well in applications that require high strength and durability in the manufacturing process. In this paper, the chemical composition, mechanical properties, heat treatment state, low temperature impact test and main application scenarios of SUS321 stainless steel plate are discussed in depth. In addition, relevant supply cases of TJC Steel Group as a quality supplier will be presented.

2. chemical composition

The main chemical composition of SUS321 stainless steel plate includes iron (Fe), chromium (Cr), nickel (Ni), titanium (Ti) and other elements. Among them, the content of chromium is between 17.00% and 20.00%, and the content of nickel is between 8.00% and 12.00%. Titanium acts as a stabilizer to help prevent intergranular corrosion and improve the weldability of steel. In addition, it may also contain small amounts of silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other elements. Precise control of the content of these elements is the key to ensuring the excellent performance of the SUS321 stainless steel plate.

3. Mechanical Properties

SUS321 stainless steel plate has excellent mechanical properties. It has high strength and hardness, as well as good plasticity and toughness. At room temperature, its tensile strength is generally greater than or equal to 520MPa, and its yield strength is in the range of 205-350MPa. In addition, it can maintain good mechanical properties at high temperatures and is suitable for the manufacture of equipment used in higher temperature environments.

4., Heat Treatment State

SUS321 stainless steel plates are usually supplied in an annealed state to maintain their good workability. Other heat treatments such as solution treatment or stabilization treatment can also be performed as required. With proper heat treatment, its mechanical properties and corrosion resistance can be further optimized to meet the needs of specific applications.

5. Low Temperature Impact Test

In order to evaluate the toughness of SUS321 stainless steel plate in low temperature environment, low temperature impact test is required. This test evaluates the low temperature toughness of steel plates by measuring the impact absorption work at different temperatures. The good low temperature impact performance indicates that the material can maintain good toughness and brittle fracture resistance at low temperature.

6. Main Application Scenarios

Due to its excellent corrosion resistance and high temperature properties, SUS321 stainless steel is widely used in various industrial fields. It is mainly used to manufacture equipment and components that need to withstand high temperature and corrosive environments, such as stoves, pipes, containers, heat exchangers in petrochemical, power energy, aerospace and other industries. In addition, in the food processing, pharmaceutical and medical device industries, due to its high requirements for hygiene and cleanliness, SUS321 stainless steel plate has also been widely used.

7. TJC Steel Group Supply Case

As a world-renowned Steel company, TJC Steel Group supplies high-quality SUS321 stainless steel plates to customers worldwide. They have established long-term relationships with a number of well-known manufacturers and end users to provide customized product solutions according to customer needs. TJC Steel Group focuses on product quality and delivery time, ensuring that the steel plates supplied meet strict quality standards. Their SUS321 stainless steel plates are widely used in a variety of industrial equipment and building structures, meeting the needs of customers for high-performance materials. These successful supply cases demonstrate TJC Steel Group's expertise and market position in the field of SUS321 stainless steel plates.