JIS G3136 SN400B steel plate is a high-quality material commonly used in the construction industry. It is a grade of steel that meets the specifications outlined in the Japanese Industrial Standards (JIS). This steel plate is characterized by its excellent chemical composition, mechanical properties, and suitability for a wide range of applications.

Chemical Composition

The chemical composition of JIS G3136 SN400B steel plate ensures its high strength and durability. It is composed of various alloying elements, including carbon, manganese, silicon, and phosphorus. The precise alloying ratios are crucial in achieving the desired mechanical properties and corrosion resistance.

Mechanical Properties

JIS G3136 SN400B steel plate exhibits excellent mechanical properties, making it suitable for a range of loading conditions. It offers high tensile strength, yield strength, and ductility. This steel plate also has good impact resistance, ensuring its durability in various environments.

Applications

The versatility of JIS G3136 SN400B steel plate makes it suitable for a wide range of applications in the construction industry. It is commonly used in the manufacturing of structural components, such as beams, columns, and girders. This steel plate is also suitable for use in bridges, buildings, and other civil engineering structures. Its corrosion resistance makes it an excellent choice for outdoor applications exposed to the elements.

Case Studies

Numerous construction projects have utilized JIS G3136 SN400B steel plate with success. One example is the Akashi Kaikyo Bridge in Japan, which is a suspension bridge with a main span of 1,991 meters. The bridge decks are reinforced with JIS G3136 SN400B steel plate, providing exceptional durability and corrosion resistance.

Another notable example is the Tohoku Shinkansen bullet train station in Sendai, Japan. The station's roof is supported by steel columns and beams made from JIS G3136 SN400B steel plate. This material was chosen for its high strength, fatigue resistance, and corrosion resistance, ensuring the longevity of the station's structural components.

In conclusion, JIS G3136 SN400B steel plate offers a combination of chemical composition, mechanical properties, and versatility that makes it an excellent choice for construction applications. Its use in projects such as the Akashi Kaikyo Bridge and the Tohoku Shinkansen bullet train station demonstrates its reliability and durability under demanding conditions.