ASTM A36 Ss400 S235jr S345jr Q420b Equal Carbon Angle Steel Angle Bar Price Steel Angle Bar

Equal Carbon Angle Steel, a fundamental and versatile structural component with symmetrical L-shaped cross-sections, is engineered to deliver reliable load-bearing performance and structural stability for diverse industrial, construction, and infrastructure projects. This product line encompasses a comprehensive range of premium carbon steel grades, including ASTM A36, Ss400, S235jr, S345jr, and Q420b, each compliant with corresponding international and national standards. As equal angle bars, they feature uniform leg lengths that ensure balanced force distribution, making them an ideal choice for framing, bracing, support structures, and various load-transmission applications.

From a material perspective, the selected grades are tailored to meet global performance requirements and application-specific needs. ASTM A36, a widely recognized American ASTM standard carbon steel, boasts a minimum yield strength of 250 MPa and tensile strength of 400-550 MPa, offering excellent ductility, weldability, and cost-effectiveness for general structural use. Ss400, adhering to Japanese JIS standards, is a mild carbon steel with a minimum tensile strength of 400 MPa, delivering reliable toughness and processability for general engineering and construction projects. S235jr, compliant with European EN standards, has a minimum yield strength of 235 MPa and guaranteed room-temperature impact toughness, making it suitable for light to medium-duty structural applications. S345jr (European EN standard) is a high-strength low-alloy steel with a minimum yield strength of 345 MPa, providing enhanced load-bearing capacity for heavy-duty scenarios. Q420b, a Chinese GB/T 1591 standard high-strength carbon steel, features a minimum yield strength of 420 MPa and excellent fatigue resistance, ideal for high-rise buildings, large-span bridges, and other critical load-bearing structures.

In terms of structural design and manufacturing, these equal carbon angle bars are typically produced via hot rolling, a process that heats steel billets above the recrystallization temperature to form a dense, uniform grain structure. This enhances mechanical stability, dimensional accuracy, and surface quality, ensuring consistent performance across batches. The symmetrical equal-leg profile is optimized for easy assembly and versatile attachment to beams, columns, and substrates, facilitating efficient load distribution. All grades exhibit excellent processability-they can be easily cut, drilled, welded, and formed using common fabrication techniques, enabling customization to meet the precise dimensional and structural requirements of various projects. Additionally, the carbon steel base material allows for flexible surface treatments such as painting, galvanizing, or powder coating to enhance corrosion resistance in harsh environments.

Regarding application scope and quality assurance, this product line caters to a global market with diverse industry needs. ASTM A36 and Ss400 grades are widely used in North American and Japanese civil engineering, industrial machinery bases, and storage rack systems. S235jr and S345jr are preferred for European infrastructure projects, including building frameworks and bridge components. Q420b is a staple in Chinese high-end construction and heavy industry. All equal carbon angle bars undergo rigorous quality control procedures, including material composition analysis, mechanical property testing (yield strength, tensile strength, impact toughness), and dimensional verification, ensuring compliance with respective standards. While product pricing is influenced by material grade, dimensions, and market factors, the cost-effectiveness and reliable performance of these angle bars make them a cost-efficient solution for structural applications worldwide.