Factory Price A36 Q235B Q355 63X63X6 200X200X12 Carbon Equal Angle Steel

Our factory price A36, Q235B, Q355 carbon equal angle steel, available in standard specifications of 63X63X6mm and 200X200X12mm, is a high-performance, cost-effective structural steel profile engineered for diverse industrial and construction applications. Characterized by its symmetrical equal-sided L-shaped cross-section, robust mechanical properties, and consistent quality, this equal angle steel is manufactured directly by our factory, eliminating intermediate links to offer competitive factory-direct pricing while adhering strictly to international (ASTM) and Chinese national standards. Produced from high-purity carbon steel billets via advanced hot-rolling technology, it delivers excellent processability, reliable load-bearing capacity, and long-term durability, making it a preferred choice for large-scale construction, infrastructure, and heavy machinery projects worldwide.

This carbon equal angle steel features two distinct standard equal-sided specifications-63X63X6mm and 200X200X12mm-each tailored to meet different load-bearing requirements and application scenarios. The 63X63X6mm specification consists of two parallel legs (flanges) each 63mm in length and 6mm in thickness, connected at a precise 90-degree right angle. Its moderate size and thickness strike a balance between weight and rigidity, making it ideal for light to medium-duty structural components, such as brackets, purlins, girts, and auxiliary supports, where flexibility in installation and cost-efficiency are prioritized.

The 200X200X12mm specification, by contrast, is a heavy-duty equal angle steel with legs of 200mm in length and 12mm in thickness. Its thicker cross-section and larger size significantly enhance load-bearing capacity, torsional resistance, and structural stability, suitable for heavy-duty applications including main building frames, load-bearing columns, bridge supports, industrial plant frameworks, and large-scale machinery bases that require superior strength to withstand high static and dynamic loads.

Both specifications are manufactured through mature hot-rolling technology, a critical process that ensures their superior performance. Carbon steel billets are heated to temperatures above the recrystallization point (typically 800-1050℃) to soften the material while preserving its structural integrity, then precision-rolled into the standard equal-sided L-shape. This thermal processing refines the internal grain structure, eliminates internal defects such as porosity and segregation, and results in a smooth surface finish, tight dimensional tolerances, and consistent thickness. The finished angle steel can be easily processed on-site through cutting, bending, welding, and drilling without compromising its mechanical properties, adapting to diverse project installation needs.

The three core steel grades-A36, Q235B, and Q355-are high-quality carbon and low-alloy structural steels, each with well-defined chemical and mechanical properties to match the two specifications, ensuring optimal performance and cost-efficiency for different project demands.

A36, compliant with ASTM A36/A36M standards, is a general-purpose carbon structural steel with a minimum yield strength of 250MPa and a tensile strength range of 400-550MPa. It has a maximum carbon content of 0.25%, excellent weldability, and formability, suitable for both 63X63X6mm and 200X200X12mm specifications. This grade is widely used in global construction projects, serving as a versatile material for both light and heavy-duty structural components.

Q235B, adhering to Chinese GB/T 700 standards, is a mild carbon steel grade with a minimum yield strength of 235MPa and a tensile strength range of 375-500MPa. The "B" grade indicates it meets impact toughness requirements at 20℃, ensuring good toughness and weldability. Q235B is primarily paired with the 63X63X6mm specification for light to medium-duty applications, offering an economical solution without sacrificing reliability, such as in residential construction brackets and light steel frames.

Q355 (updated standard equivalent of the former Q345), compliant with GB/T 1591 standards, is a low-alloy high-strength steel with a minimum yield strength of 355MPa and a tensile strength range of 470-630MPa. It contains trace alloying elements that enhance strength and toughness, making it ideal for the 200X200X12mm heavy-duty specification. This grade provides superior load-bearing capacity and structural stability, suitable for heavy-duty projects such as bridge supports, industrial plant frames, and large-scale infrastructure reinforcement, where high strength and durability are paramount.

All grades of our carbon equal angle steel have strictly controlled harmful impurities, with phosphorus content ≤0.045% and sulfur content ≤0.045%, effectively preventing material brittleness and improving fatigue resistance. The carbon steel base material exhibits good corrosion resistance in normal atmospheric conditions; for applications in humid, corrosive, or outdoor environments, it can be further treated with galvanization, painting, or other anti-corrosion processes to extend service life.

As a factory-direct product, our A36 Q235B Q355 carbon equal angle steel offers competitive pricing while maintaining strict quality control throughout the production process-from raw material selection to hot-rolling, dimensional inspection, and mechanical property testing. This ensures each batch of products meets or exceeds relevant standards, delivering consistent performance and reliability. With two tailored specifications, three versatile steel grades, and factory-direct cost advantages, this equal angle steel provides a practical, economical, and reliable structural solution for diverse construction and industrial needs, catering to the demands of both small-scale and large-scale bulk procurement projects.