Quality Angle Steel Bars - Standard Sizes Q235, Q355b, S235jr

Angle steel bars, also known as angle irons, are essential structural components characterized by their L-shaped cross-section, which endows them with excellent load-bearing capacity, rigidity, and structural stability. Our premium angle steel bars, available in standard sizes and three high-performance material grades-Q235, Q355b, and S235jr-are engineered to meet the rigorous requirements of various industrial, construction, and manufacturing applications.

Material properties stand as the cornerstone of our angle steel bars' performance. Q235, a carbon structural steel widely utilized in general engineering, boasts a minimum yield strength of 235 MPa. It exhibits good weldability, formability, and machinability, making it ideal for non-critical load-bearing structures such as building frames, brackets, and light-duty machinery parts. Q355b, a low-alloy high-strength steel, offers superior mechanical properties compared to Q235, with a minimum yield strength of 355 MPa. The "b" grade indicates its ability to withstand low temperatures (down to -20°C) without compromising toughness, rendering it suitable for heavy-duty structural projects, bridge construction, and offshore applications where high strength and cold resistance are paramount. S235jr, a European standard carbon steel (EN 10025), is equivalent to Q235 in performance. It features reliable ductility and weldability, and is commonly used in architectural structures, furniture manufacturing, and general mechanical fabrication.

Our angle steel bars adhere to strict international and national standards for dimensions, ensuring precise dimensional accuracy and consistent cross-sectional geometry. The standard sizes cover a wide range of leg lengths (from 20mm to 200mm) and wall thicknesses (from 3mm to 24mm), catering to diverse application needs. The L-shaped design allows for easy assembly and connection with other structural components, enabling the construction of stable and efficient load-bearing systems. Whether used as primary structural members, bracing elements, or reinforcement components, our angle steel bars deliver consistent performance and structural integrity.

In addition to superior material quality and precise dimensions, our angle steel bars undergo rigorous quality control processes throughout the production cycle-from raw material selection to hot rolling, cooling, and final inspection. This ensures that each batch of products meets the specified mechanical properties, chemical composition, and surface quality requirements, free from defects such as cracks, inclusions, and uneven thickness. The hot-rolled production process further enhances the material's grain structure, improving its strength and toughness.

Applicable across a broad spectrum of industries, including construction (residential, commercial, and industrial buildings), infrastructure (bridges, railways, and highways), machinery manufacturing (equipment frames, brackets, and bases), automotive, and shipbuilding, our quality angle steel bars with standard sizes Q235, Q355b, and S235jr are the preferred choice for engineers, contractors, and manufacturers seeking reliable, high-performance structural solutions.