JIS SS400 Steel Plate

Overview of JIS SS400 Steel Plate

JIS SS400 is one of the most commonly used hot-rolled general structural steel grades defined in the Japanese Industrial Standard JIS G 3101. It is a reliable carbon structural steel recognized for its balanced mechanical properties, including moderate tensile strength and excellent ductility. “SS” stands for “Structural Steel,” and “400” refers to its minimum tensile strength of 400 MPa. Due to its stable performance and cost-effectiveness, SS400 steel plate is a staple material in international B2B steel procurement for a wide variety of engineering and construction applications.

As a low-carbon steel, JIS SS400 offers superior workability and formability. It is highly responsive to standard fabrication techniques such as cutting, drilling, and machining. Unlike high-alloy steels that require complex processing, SS400 provides a straightforward and economical solution for projects that demand dependable structural integrity without the need for extreme high-strength specifications. Shandong Tanglu Metal Material Co., Ltd. ensures that every SS400 plate supplied meets the rigorous quality standards expected by global contractors and manufacturers.

Key Features and Processing Advantages

The primary advantage of JIS SS400 steel plate lies in its exceptional weldability. With a controlled chemical composition, it can be easily joined using all common welding methods, including SMAW, GMAW, and submerged arc welding (SAW). This makes it an ideal choice for large-scale welded structures where fabrication speed and joint reliability are critical. Additionally, SS400 plate exhibits good atmospheric corrosion resistance in general environments and can be easily treated with protective coatings such as anti-rust oil, primer painting, or hot-dip galvanizing for enhanced longevity.

Processing JIS SS400 is highly efficient for any workshop. It can be precision-cut using flame, plasma, or laser cutting systems to match specific technical drawings. Its excellent bending and punching characteristics allow for the creation of complex structural shapes and components. For B2B buyers, the high availability and standardized performance of SS400 mean shorter lead times and predictable manufacturing costs, making it the preferred grade for everything from simple base plates to complex industrial frameworks.

Main Applications of JIS SS400 Steel Plate

JIS SS400 steel plate is widely utilized in the construction of buildings, steel bridges, and infrastructure projects. It is a fundamental material for manufacturing steel frames, support columns, and structural trusses. In the industrial sector, it is frequently used to fabricate base plates, brackets, and secondary structural members for heavy machinery. Its reliability makes it a top choice for the production of storage tanks (non-pressure), trailers, agricultural equipment, and automotive components that require steady structural support.

Furthermore, SS400 is often specified for marine structures (non-critical parts), transport engineering, and general engineering fabrication. Because it combines moderate strength with high versatility, it is suitable for almost any project that involves welding, bolting, or riveting steel components together. For customers looking for a practical, multi-purpose carbon steel plate that delivers consistent performance across different structural roles, JIS SS400 remains the most widely requested and reliable option in the Asian and global markets.

Why Choose Us for JIS SS400 Steel Plate

Shandong Tanglu Metal Material Co., Ltd. specializes in providing high-quality JIS SS400 steel plates with professional export services. We maintain a comprehensive stock of various thicknesses and dimensions to ensure we can meet both urgent small-scale needs and large-volume project requirements. All our SS400 plates come with original Mill Test Certificates (MTC) to guarantee that the chemical composition and mechanical properties fully comply with the JIS G 3101 standard.

Our strategic logistics network, based near major ports like Tianjin, Shanghai, and Qingdao, allows us to offer efficient shipping and competitive pricing for B2B clients worldwide. We also provide value-added processing services, including precision cutting, shot-blasting, and customized surface protection. Partnering with us means gaining access to stable material supply, expert technical support, and a dedicated team committed to ensuring your structural projects are built on a foundation of quality and reliability.