Hot-rolled angle bar, also referred to as angle iron bar, is a pivotal structural steel product characterized by its L-shaped cross-section, which endows it with excellent load-bearing capacity and structural stability. The product line covers a comprehensive range of material grades and thickness specifications, tailored to meet the diverse requirements of industrial construction, mechanical manufacturing, and infrastructure projects.
In terms of material properties, the angle bars are available in multiple high-quality carbon steel and low-alloy high-strength steel grades, including Q195, Q235, Q355, 20#, and 45#. Q195 and Q235 are typical carbon structural steels, boasting good ductility, weldability, and formability, making them ideal for general structural applications such as frame fabrication, support brackets, and decorative components. Q355, as a low-alloy high-strength steel, offers enhanced tensile strength and impact resistance, suitable for heavy-duty structural projects that demand higher load-bearing performance, such as bridge construction, mechanical equipment bases, and offshore platforms. 20# and 45# are high-quality carbon structural steels with precise chemical composition control; 20# steel features excellent machinability and weldability, widely used in the manufacturing of mechanical parts and pipelines, while 45# steel has higher hardness and strength after heat treatment, making it suitable for load-bearing components and mechanical transmission parts.
The thickness specification of the hot-rolled angle bars ranges from 3mm to 24mm, with corresponding changes in cross-sectional dimensions and weight per unit length to adapt to different force-bearing conditions. The hot-rolling production process ensures uniform metal structure, dense internal organization, and smooth surface of the angle bars, effectively improving their mechanical properties and service life. Additionally, the L-shaped cross-section design allows for flexible assembly and connection, enabling the formation of stable truss and frame structures through welding, bolting, or riveting, which is widely applied in construction engineering (such as building frames, roof trusses, and stair handrails), mechanical manufacturing (such as equipment frames, tool fixtures, and transmission components), and infrastructure construction (such as highway guardrails, railway accessories, and power tower supports).
Our high-quality Q235 carbon L-shaped angle steel strictly complies with national and international construction steel standards. A rigorous quality control system is implemented throughout the entire production process, from the selection of high-purity raw materials to the final finished product inspection. Key quality checks include chemical composition analysis, mechanical property testing (tensile, yield, and impact tests), and dimensional accuracy verification, ensuring that each batch of angle steel meets the exact requirements of construction projects. With its reliable quality, excellent performance, and wide applicability in construction, our Q235 carbon angle steel has become a trusted choice for construction companies, engineers, and contractors, providing strong structural support for the safety, durability, and quality of various building projects.
