Angle Steel En S235jr S355jr Grade Made China-Equal Project Material ASTM Standard Sizes Bending Processing Service

Angle Steel EN S235JR S355JR Grade, a China-manufactured equal project material with ASTM standard sizes and professional bending processing service, is a high-performance structural steel product engineered to meet European EN standards, ASTM specifications, and global project requirements. As a specialized equal-angle steel, it features a symmetrical L-shaped cross-section, two premium European standard steel grades (EN S235JR and EN S355JR), and is complemented by customized bending processing services, making it a versatile and reliable choice for various construction, industrial, and engineering projects worldwide.

The product's superior performance is rooted in its two strictly selected European standard steel grades-EN S235JR and EN S355JR-each with well-defined chemical compositions and mechanical properties tailored to diverse project load requirements. EN S235JR, a non-alloy structural steel compliant with EN 10025-2 standard, is a widely used grade for general project applications. With a carbon content ≤0.17% and manganese content 0.30%-0.60%, it offers a minimum yield strength of 235 MPa (at room temperature) and a tensile strength range of 360-510 MPa. The "JR" grade ensures notch impact resistance at 20°C, providing reliable toughness and ductility, making it ideal for medium-load project components such as building frames, roof trusses, and general structural supports.

EN S355JR, also a European standard (EN 10025-2) low-alloy high-strength structural steel, is designed for heavy-load and high-stress project scenarios. Boasting a minimum yield strength of 355 MPa and a tensile strength range of 470-630 MPa, it is enhanced by trace alloying elements (manganese, silicon, vanadium) that significantly improve its toughness, impact resistance, and wear resistance. With a carbon content ≤0.20% and manganese content 1.00%-1.60%, EN S355JR maintains excellent workability while delivering superior load-bearing capacity, suitable for critical project components such as bridge bracing, heavy machinery supports, and large-scale building frameworks.

As a China-manufactured equal project material, this angle steel adheres to strict quality control standards throughout the production process, ensuring consistency and compliance with international benchmarks. The manufacturing process adopts advanced hot-rolling technology, where EN S235JR and EN S355JR steel billets are heated to a high temperature (above 1000°C) to soften the material, then subjected to precision rolling to form the symmetrical equal L-shaped cross-section. This hot-rolling process refines the internal grain structure, eliminates internal defects such as pores, inclusions, and microcracks, and enhances ductility and toughness-critical properties for structural stability and subsequent processing.

Compliance with ASTM standard sizes is a key highlight of this product, ensuring seamless compatibility with global project requirements. The equal-angle steel is produced in full accordance with ASTM A6/A6M specifications, covering a comprehensive range of standard dimensions. Equal leg lengths typically range from 20mm to 200mm (0.75 inches to 8 inches), with thicknesses spanning 3mm to 25mm (0.12 inches to 1 inch), and standard lengths of 6m, 9m, and 12m (20 feet to 40 feet). All dimensions are strictly controlled to meet ASTM dimensional tolerances, ensuring that the product can be easily integrated into projects adhering to international standards, facilitating cross-border application and assembly.

A distinguishing advantage of this product is the provision of professional bending processing service, tailored to meet the customized shape requirements of various projects. The bending processing is carried out using advanced equipment and professional techniques, ensuring precise bending angles (ranging from 0° to 180°) and consistent bending quality. The excellent ductility of EN S235JR and EN S355JR grades ensures that the angle steel can be bent without cracking or compromising structural integrity, maintaining its mechanical properties after processing. This service eliminates the need for on-site processing by customers, improving construction efficiency and reducing project costs.

The equal L-shaped cross-section of the angle steel is specifically designed for project applications, providing balanced force distribution and easy assembly. With identical leg lengths and uniform thickness, it ensures even transmission of loads, reducing stress concentration and enhancing the overall structural integrity of project assemblies. This design simplifies connection with other structural components, such as beams, columns, and brackets, making it suitable for a wide range of project scenarios, including residential construction, commercial buildings, industrial workshops, and infrastructure projects.

Due to its reliable material performance, ASTM standard sizes, and professional bending processing service, this China-manufactured EN S235JR S355JR equal angle steel is widely applied in various projects. EN S235JR grade is commonly used in light to medium-load projects such as residential roof trusses, balcony railings, and temporary scaffolding. EN S355JR grade is suitable for heavy-load projects such as bridge construction, transmission towers, and heavy-duty factory frameworks. The bending processing service further expands its application scope, enabling it to adapt to irregular structural designs and customized project requirements.

Each batch of this angle steel undergoes rigorous quality control procedures to ensure compliance with EN and ASTM standards. Quality inspections include chemical composition analysis of EN S235JR and EN S355JR materials, mechanical property testing (yield strength, tensile strength, impact toughness), dimensional accuracy verification (in line with ASTM standards), and bending processing quality assessment. The natural hot-rolled surface can be further treated with hot-dip galvanization, electro-galvanization, or painting to enhance corrosion resistance, extending its service life in outdoor, humid, or corrosive project environments. Combining high-quality materials, standard sizes, and customized processing services, this equal angle steel is a trusted project material for modern global engineering projects.