JIS Standard Carbon Steel Plate for Diverse Industrial Needs

JIS standard carbon steel plates adhere to Japanese Industrial Standards (JIS), developed by the Japanese Industrial Standards Committee, and are renowned for their precision and consistency. JIS G3101 is the key standard for hot rolled carbon steel plates, covering grades such as SS400, SS550, and SM490, where "SS" denotes general structural use and "SM" indicates structural use in welding. Chemical composition requirements emphasize balance between strength and weldability, with carbon content typically ≤0.25% to minimize hardenability and cracking during welding. Mechanical properties specify tensile strength ranges (e.g., SS400 has a tensile strength of 400 510 MPa) and yield strength, with elongation requirements to ensure ductility. JIS plates undergo strict quality control, including ultrasonic testing for internal defects and surface inspection for uniformity. They are widely used in Japanese construction (earthquake resistant buildings), shipbuilding, automotive manufacturing, and industrial equipment, where high reliability and precise dimensions are critical. International projects in Asia and beyond often adopt JIS standards for compatibility with Japanese engineering practices. Suppliers of JIS standard plates typically provide detailed mill test reports and compliance certificates, ensuring traceability and performance consistency. The reputation for high quality and strict manufacturing processes makes JIS standard carbon steel plates a preferred choice in industries demanding precision and durability.