Q345 Q235 6X6X8.5, 7X7X10 Steel Angle Bar

The Q345 and Q235 steel angle bars, available in precise specifications of 6X6X8.5 and 7X7X10, are high-performance structural components engineered for demanding load-bearing and bracing applications across construction and industrial sectors. These angle bars feature a symmetrical L-shaped cross-section, with the numerical specifications representing leg length × leg length × thickness (mm), ensuring uniform stress distribution and exceptional structural stability. Crafted from premium Q345 and Q235 carbon steel grades-two of the most widely recognized and trusted structural steel materials-this product combines reliable mechanical properties with dimensional precision, making it an ideal choice for projects requiring consistent performance and structural integrity.

The core advantage of these angle bars lies in their high-quality Q345 and Q235 carbon steel compositions, each adhering to strict GB/T 706-2016 standards. Q235 carbon steel offers a balanced set of mechanical properties, with a minimum yield strength of 235 MPa and tensile strength ranging from 375 to 500 MPa, ensuring excellent formability, weldability, and machinability for general structural needs. Q345, a high-strength low-alloy (HSLA) steel, boasts superior load-bearing capacity with a minimum yield strength of 345 MPa and tensile strength of 470 to 630 MPa, making it suitable for heavy-duty applications. Both grades exhibit excellent ductility, enabling on-site forming operations (bending, cutting, welding) without compromising structural stability, and their compatibility with common welding techniques (arc welding, gas metal arc welding) facilitates seamless integration into complex assemblies.

The 6X6X8.5 and 7X7X10 specifications are meticulously manufactured to ensure tight dimensional tolerances, critical for precise structural assembly. The production process begins with the selection of high-purity Q345 or Q235 steel billets, which are heated to controlled temperatures in advanced furnaces to optimize ductility. The heated billets are then passed through computer-calibrated rolling mills, gradually shaping into the 6mm×6mm and 7mm×7mm equal leg profiles with precise 8.5mm and 10mm thicknesses, respectively. Post-rolling, the angle bars undergo precision straightening, automated length cutting (standard lengths of 6m, 9m, 12m, or custom lengths available), and surface cleaning to remove oxide scales. This rigorous manufacturing process ensures that each angle bar maintains consistent dimensions, flat leg surfaces, and uniform thickness, guaranteeing reliable performance in load-bearing applications.

The Q345/Q235 6X6X8.5 and 7X7X10 steel angle bars are highly versatile, catering to a wide range of industrial and construction applications. The 6X6X8.5 specification, with its compact leg size and robust thickness, is ideal for light to medium-duty applications such as machinery brackets, electrical enclosures, small-scale structural frames, and furniture hardware. The 7X7X10 specification, featuring larger leg dimensions and increased thickness, offers enhanced load-bearing capacity, making it suitable for heavy-duty applications including industrial machinery bases, bridge bracings, large-scale storage racking, and infrastructure support components. Both specifications are widely used in automotive manufacturing, shipbuilding, and renewable energy projects, where dimensional precision and material reliability are paramount.

Our Q345/Q235 6X6X8.5 and 7X7X10 steel angle bars are produced under a comprehensive quality control system, covering raw material inspection, rolling process monitoring, and final product testing. Each batch undergoes rigorous testing for dimensional accuracy, mechanical properties (yield strength, tensile strength, elongation), and surface quality, and is accompanied by a detailed quality certificate to ensure compliance with GB/T 706-2016 standards. We are committed to delivering high-precision, reliable angle bar solutions that meet the specific needs of your projects. Whether for light industrial use or heavy-duty structural applications, these Q345/Q235 steel angle bars combine premium material performance, precise manufacturing, and versatile specifications to provide durable and cost-effective structural support.