Hot Rolled Steel Angle JIS G3192 Q235B 50X50X5, S235jr 100X100X10, A36

Our hot-rolled steel angle portfolio, encompassing compliance with JIS G3192 Q235B, EN S235JR, and ASTM A36 standards, and featuring 精准 dimensioned profiles (50X50X5mm, 100X100X10mm, 4"X4"X1/4"), stands as a versatile and reliable structural solution tailored to meet the varied demands of construction, manufacturing, and infrastructure projects worldwide. Each product variant combines the inherent advantages of hot-rolled processing with material-specific performance traits, ensuring optimal strength, ductility, and fabrication adaptability for both general and specialized applications.​

1. JIS G3192 Q235B Hot-Rolled Steel Angle (50X50X5mm)​

Adhering to Japan's JIS G3192 standard, the Q235B-grade steel angle in 50X50X5mm (equal-angle, 50mm leg length, 5mm thickness) is a cost-effective choice for light to medium-duty structural tasks. Q235B exhibits a minimum yield strength of 235 MPa and tensile strength of 375-500 MPa, balanced with good weldability and cold-forming capacity-ideal for fabricating shelf supports, light steel frames, and decorative structural elements. The 50X50X5mm dimension offers a compact profile that minimizes material weight while providing sufficient load-bearing capacity, making it suitable for residential construction, small-scale industrial fixtures, and indoor infrastructure projects. The hot-rolled finish ensures a uniform grain structure, eliminating internal stresses and enhancing dimensional stability during cutting or bending.​

2. EN S235JR Hot-Rolled Steel Angle (100X100X10mm)​

Compliant with European EN 10025-2 standards, the S235JR-grade steel angle in 100X100X10mm (equal-angle, 100mm leg length, 10mm thickness) is engineered for medium to heavy-duty structural applications. S235JR delivers a minimum yield strength of 235 MPa (consistent across thicknesses up to 16mm) and tensile strength of 360-510 MPa, paired with excellent toughness (even at low temperatures, per JR-grade requirements). The 100X100X10mm profile offers a robust load-bearing surface and high moment of inertia, making it suitable for industrial plant frames, bridge bracing, heavy machinery bases, and commercial building columns. Its hot-rolled construction ensures superior weldability and compatibility with standard fabrication processes, while the natural oxide surface finish provides baseline corrosion resistance (easily enhanced with galvanization or painting for outdoor use).​

3. ASTM A36 Hot-Rolled Steel Angle (4"X4"X1/4")​

Meeting ASTM A36, the most widely used structural steel standard globally, the A36-grade steel angle in 4"X4"X1/4" (imperial equal-angle, 4-inch leg length, 1/4-inch thickness) is a workhorse for diverse construction and engineering projects. A36 boasts a minimum yield strength of 36 ksi (248 MPa) and tensile strength of 58-80 ksi (400-552 MPa), with exceptional ductility (minimum 20% elongation) and weldability-capable of withstanding high-stress conditions without brittle failure. The 4"X4"X1/4" dimension (equivalent to ~101.6X101.6X6.35mm) balances structural rigidity and material efficiency, making it ideal for North American market applications such as building trusses, utility poles, shipping container frames, and infrastructure supports. Hot-rolling refines the steel's microstructure, ensuring consistent performance across the profile and enabling seamless integration into complex assemblies via welding, bolting, or riveting.​

Across all variants, strict quality control measures are implemented-including mechanical property testing (tensile, yield, elongation), dimensional accuracy checks (leg length, thickness, angle squareness), and non-destructive inspections-to ensure full compliance with respective standards. The hot-rolling process, a common strength across the range, involves heating steel billets to ~1,200°C and shaping via calibrated rolls, which enhances material toughness, eliminates defects, and ensures uniform mechanical properties. Whether for regional projects requiring JIS/EN/ASTM compliance or specific load requirements dictating size selection, this steel angle assortment delivers reliable performance, supporting the safety, durability, and efficiency of structural projects of all scales.​