Q235/Ss400/A36 GB JIS Hot Rolled Mild Steel Angle Bar Carbon Steel Angle Iron Price

The Q235/SS400/A36 Hot Rolled Mild Steel Angle Bar, also known as carbon steel angle iron, is a versatile structural component manufactured in compliance with international standards including GB (Chinese National Standard), JIS (Japanese Industrial Standard), and ASTM (American Society for Testing and Materials). As a core product in the carbon steel category, it features a characteristic L-shaped cross-section, which endows it with excellent load-bearing capacity, structural stability, and ease of installation-making it an indispensable material in numerous industrial and construction scenarios.

Material & Manufacturing Excellence

Crafted from high-quality mild carbon steel, this angle bar adheres to the chemical and mechanical property requirements of Q235 (GB standard), SS400 (JIS standard), and A36 (ASTM standard)-three globally recognized specifications for low-carbon structural steel. The material exhibits a carbon content typically ranging from 0.17% to 0.24%, ensuring optimal weldability, ductility, and machinability. The hot rolling process, a key manufacturing step, involves heating the steel billet to a high temperature (above the recrystallization point) before passing it through calibrated rolls to form the precise L-shape. This process enhances the material's internal structure, resulting in uniform grain distribution, improved tensile strength (minimum 370MPa for A36/SS400, 370-500MPa for Q235), and superior impact resistance compared to cold-rolled alternatives.

Key Characteristics & Specifications

Structural Advantages: The L-shaped profile provides dual-axis load-bearing capability, making it ideal for reinforcing frameworks, supporting loads, and forming rigid connections in structures. Its symmetrical design ensures balanced stress distribution, reducing deformation under dynamic or static loads.

Dimensional Versatility: Available in a wide range of sizes, with leg lengths (equal or unequal) typically spanning from 20x20mm to 200x200mm and thicknesses from 3mm to 20mm. Custom dimensions can be tailored to meet specific project requirements.

Corrosion Resistance: While mild steel inherently offers moderate corrosion resistance, additional surface treatments such as galvanization (hot-dip or electro-galvanized), painting, or oiling are available to enhance durability in harsh environments (e.g., marine, industrial, or outdoor applications).

Cost-Effectiveness: As a low-carbon steel product, it balances high performance with competitive pricing, making it a cost-efficient choice for large-scale construction and industrial projects.

Applications

The Q235/SS400/A36 Hot Rolled Mild Steel Angle Bar is widely utilized across multiple sectors, including:

Construction: Building frameworks, trusses, beams, columns, floor supports, and wall reinforcements; residential, commercial, and industrial buildings, bridges, and infrastructure projects.

Manufacturing: Fabrication of machinery frames, equipment bases, conveyor systems, storage racks, and automotive components.

Engineering: Scaffolding, formwork, bracing systems, and structural supports in civil engineering projects.

Other Fields: Agricultural machinery, furniture production, and general metal fabrication where structural integrity and versatility are paramount.

Quality Assurance

All products undergo strict quality control measures, including chemical composition analysis, mechanical property testing (tensile strength, yield strength, elongation), dimensional inspection, and surface quality checks. They are certified to meet the requirements of GB/T 706, JIS G 3192, and ASTM A36 standards, ensuring reliability and consistency for every application.