Factory Supply Wholesale Q235A Q235B Q345 Carbon Steel Angle Steel

Mar 24, 2026

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As a professional factory-supplied wholesale product, Carbon Steel Angle Steel is a fundamental structural component widely applied in construction, industrial manufacturing, infrastructure and other fields, renowned for its excellent mechanical properties, stable quality and cost-effectiveness. Our factory specializes in the wholesale supply of this high-quality angle steel, adhering to strict production standards and quality control systems to ensure that each batch of products meets the requirements of large-scale engineering projects and bulk procurement needs.

The wholesale carbon steel angle steel we supply mainly covers three core high-quality carbon steel grades: Q235A, Q235B and Q345, each designed to cater to different structural strength requirements and application scenarios, providing customers with diversified choices for bulk procurement. These grades are all typical carbon structural steels, featuring good weldability, formability and processability, which are essential for large-scale assembly and post-processing in wholesale applications.

Q235A and Q235B belong to the same series of mild carbon structural steels, with a minimum yield strength of 235 MPa and tensile strength ranging from 375 to 500 MPa, ensuring basic load-bearing capacity and structural stability. The key difference between the two lies in their impact toughness requirements: Q235A is not required to undergo impact tests at room temperature, making it suitable for wholesale applications in non-low-temperature environments, such as indoor building frames, light equipment supports and general structural components. Q235B, on the other hand, must pass the room-temperature impact test, offering better toughness and impact resistance, which is more applicable to outdoor projects, medium-load structures and scenarios where temperature changes may occur, such as open-air storage racks and outdoor engineering brackets.

Q345 is a low-alloy high-strength carbon steel, with a minimum yield strength of 345 MPa and tensile strength of 470 to 630 MPa, which is significantly higher than Q235 series steels. Its excellent mechanical properties are derived from the addition of appropriate alloying elements, which enhance the steel's tensile strength, toughness and wear resistance. Q345 carbon steel angle steel is particularly suitable for wholesale supply in high-demand engineering scenarios, such as high-rise building frames, bridge structures, heavy machinery supports and power transmission towers, where superior load-bearing capacity and structural reliability are critical.

All our wholesale carbon steel angle steel products are manufactured through advanced hot rolling technology, a mature production process that ensures the uniformity of the product's internal structure and mechanical properties. During the hot rolling process, carbon steel billets are heated to high temperatures and continuously rolled into the standard L-shaped cross-section (including equal and unequal angle steel, customizable according to wholesale orders). This process not only improves the ductility and impact resistance of the angle steel but also ensures strict dimensional accuracy, with consistent leg length, thickness and angle, facilitating standardized assembly and reducing construction time for bulk users.

As a factory-direct wholesale supplier, we prioritize product quality and cost control. Our production line adopts strict quality inspection procedures, from the selection of raw materials to the final finished products, ensuring that each piece of angle steel meets national and international standards for carbon structural steels. The factory supply model eliminates intermediate links, enabling us to provide competitive wholesale prices for large-quantity orders, while offering flexible customization services for specifications, grades and packaging to meet the diverse needs of different customers, such as construction companies, engineering contractors and industrial manufacturers.

In addition to excellent product performance and favorable wholesale conditions, our carbon steel angle steel also boasts wide applicability. It is widely used in bulk construction projects (building frames, trusses, wall supports), industrial manufacturing (equipment frames, production line brackets), infrastructure construction (bridges, highways, power facilities) and other fields. Its combination of stable quality, high strength, easy processability and cost-effectiveness makes it an ideal choice for wholesale procurement, helping customers reduce project costs while ensuring structural safety and durability.

 

angle steel

angle steel

angle steel