Hot Rolled Ss400-Ss540 Series 200X200 Steel Angle Steel

Our hot-rolled steel angle, belonging to the SS400-SS540 high-strength series and featuring a robust 200x200mm equal-angle configuration, stands as a premium structural solution engineered to meet the most demanding heavy-duty application requirements across construction, infrastructure, and industrial sectors. This iconic L-profile product combines exceptional material performance, precise manufacturing, and dimensional stability, making it an indispensable component for projects requiring superior load-bearing capacity, structural rigidity, and long-term reliability.

At the core of this product's excellence lies the SS400-SS540 material series-a range of Japanese industrial standard (JIS) structural steels renowned for their consistent mechanical properties and versatility. SS400, a widely adopted low-carbon high-strength steel, delivers a minimum yield strength of 400 MPa and tensile strength between 470-630 MPa, offering an optimal balance of ductility, weldability, and cost-effectiveness for general heavy-duty structural use. Progressing to SS540, the high-end of the series, this grade boasts a minimum yield strength of 540 MPa and tensile strength of 670-830 MPa, catering to ultra-heavy-load scenarios that demand exceptional structural resilience and fatigue resistance. Both grades exhibit excellent formability, enabling seamless fabrication through welding, drilling, bending, and cutting-critical for integrating into complex structural frameworks without compromising material integrity.

The 200x200mm equal-angle design is a defining feature that sets this product apart for large-scale structural applications. With uniform leg lengths of 200mm and standard thicknesses ranging from 10mm to 24mm (customizable to project needs), the profile provides a broad load-bearing surface and enhanced moment of inertia, ensuring efficient force distribution and structural stability in high-stress environments. This large-format configuration eliminates the need for redundant material assembly, simplifying construction processes while optimizing structural efficiency-ideal for supporting massive structures such as bridge piers, industrial plant frames, high-rise building columns, and heavy machinery bases.

Manufactured via advanced hot-rolling technology, this steel angle undergoes a precision-controlled process where raw steel billets are heated to temperatures exceeding 1,000°C, then passed through calibrated rolls to form the precise L-profile. This thermal processing refines the material's grain structure, eliminates internal defects, and relieves residual stresses, resulting in superior toughness, dimensional accuracy, and resistance to deformation under extreme loads or environmental conditions. The hot-rolled surface finish, characterized by a natural oxide layer, not only enhances adhesion for subsequent coatings (such as galvanization or painting) but also provides inherent protection against mild corrosion in indoor and outdoor settings.

Rigorous quality assurance protocols are implemented throughout production, including non-destructive testing, mechanical property verification, and dimensional inspection, ensuring full compliance with JIS G 3101 (for SS400) and JIS G 3106 (for SS540) standards. This commitment to quality guarantees that each 200x200mm steel angle delivers consistent performance, supporting the safety and longevity of critical infrastructure projects-from large-scale industrial complexes and civil engineering works to heavy-duty manufacturing facilities and power generation plants. As a testament to its versatility, this product also serves as a reliable choice for custom fabrication projects requiring high-strength, large-format structural components.