This category comprises the most common type of stainless steel sheets, including SUS 304 stainless steel. Austenitic stainless steel sheets offer excellent corrosion resistance, high strength, and good formability. They are widely used in various industries such as construction, food processing, and automotive.

SUS 430 stainless steel is an example of ferritic stainless steel. These sheets have lower corrosion resistance compared to austenitic stainless steel but provide higher strength and heat resistance. Ferritic stainless steel sheets are commonly used in applications where corrosion resistance is not the primary concern, such as automotive exhaust systems and decorative applications.

SUS 410 stainless steel is a popular example of martensitic stainless steel. These sheets exhibit high hardness, good wear resistance, and moderate corrosion resistance. They are commonly used in applications such as cutlery, surgical instruments, and turbine blades.

Duplex stainless steel, such as SUS 2205, combines the properties of austenitic and ferritic stainless steels. These sheets offer excellent corrosion resistance, higher strength than austenitic grades, and good weldability. They are commonly used in industries such as chemical processing, oil and gas, and marine environments.