Our Q235 equal angle steel, specifically sized at 20×20×3mm, is a precision-engineered structural component tailored exclusively for steel frame applications. As a core product in carbon structural steel profiles, this equal angle steel features a symmetrical cross-sectional design with two identical 20mm legs and a 3mm thickness, a configuration that ensures balanced load-bearing capacity, excellent structural stability, and seamless integration into various steel frame systems. Its standardized dimensions and reliable material properties make it an ideal choice for enhancing the rigidity and integrity of steel frame structures.
Constructed from Q235 carbon structural steel, a grade widely recognized and utilized in the construction industry for its superior performance and cost-effectiveness, this angle steel adheres to rigorous domestic and industrial standards. Q235 steel is defined by a minimum yield strength of 235 MPa and a tensile strength ranging from 375 to 500 MPa, providing an optimal balance of ductility and toughness. This material composition ensures the angle steel can withstand static and dynamic loads commonly encountered in steel frame structures, while its excellent weldability and formability lay a solid foundation for efficient assembly and fabrication. Unlike higher-strength steel grades that may incur additional costs, Q235 offers a cost-effective solution without compromising on structural safety, making it a preferred material for general-purpose steel frame applications.
The 20×20×3mm equal angle steel is manufactured through advanced hot-rolling processes, which refine the steel's grain structure to enhance its mechanical properties and dimensional accuracy. Strict quality control measures are implemented during production to ensure the leg length, thickness, and angle between legs meet precise tolerances, eliminating deviations that could affect structural performance. The product's surface is free from defects such as cracks, folds, and excessive scale, ensuring good adhesion for subsequent surface treatments (e.g., painting, galvanizing) that extend its service life in both indoor and outdoor steel frame environments. Each batch of angle steel undergoes rigorous testing, including mechanical property verification and dimensional inspection, to guarantee consistency and reliability.
Designed specifically for steel frame applications, this Q235 equal angle steel excels in key performance attributes critical to frame construction. Its outstanding weldability allows for secure and efficient joining with other steel components (e.g., I-beams, channels, steel plates) using conventional welding techniques such as shielded metal arc welding and gas metal arc welding, ensuring strong and durable connections. The 20×20×3mm size is particularly suited for light to medium-duty steel frames, serving as essential components in roof trusses, wall frames, floor joists, and bracing systems. Additionally, its compact dimensions and lightweight nature facilitate easy handling, transportation, and on-site installation, reducing construction time and labor costs. The equal leg design ensures uniform stress distribution across the profile, minimizing the risk of structural failure under load.
This Q235 equal angle steel (20×20×3mm) finds wide application in a range of steel frame projects, including residential buildings, commercial workshops, warehouses, exhibition halls, and light industrial structures. It is commonly used as a connecting bracket, reinforcing member, or secondary framing component, providing critical support to the overall steel structure. Its compliance with Q235 material standards ensures compatibility with global construction practices and materials, making it a versatile choice for both domestic and international projects. Backed by strict quality assurance and reliable performance, our 20×20×3mm Q235 equal angle steel delivers consistent value, ensuring the safety, stability, and longevity of steel frame structures while maintaining cost-effectiveness.
| Grade | Dementions | Wall Thickness (WT) | Length |
| Q235,Q355,S235 | 25mm-100mm | 2mm ~ 10mm | 6m/12m |
| A36 | 25mm-100mm | 2mm ~ 10mm | 6m/12m |
| SS400 | 25mm ~ 100mm | 2mm ~ 10mm | 6m/12m |






















