Carbon Steel Square Tube Wholesale Price, Steel Tubing for Bulk Orders

Carbon Steel Square Tube Wholesale Price, Steel Tubing for Bulk Orders. Comprehensive Material Range: Available in Q195, Q235, Q345, ASTM A36, S235, S355, SS400, and more. Wide Size Specifications: Square tubes from 16x16mm to 250x250mm; Rectangular from 10x20mm to 120x80mm. Flexible Length Options: Standard 6m lengths available, or customized based on customer request. Robust Hot-Dip Galvanizing: Zinc coating 40-650g/m2 ensures excellent corrosion resistance and durability. Superior Processing Performance: Alloy layer firmly attached, allowing cold punching, bending, drilling, and welding without coating damage. Strict Quality Assurance: Pre-production samples and final inspections required; third-party testing allowed. Global Certification Standards: Meets EN10210, EN10219, DIN17100, ASTM A36, JIS G3466, CE, and ISO9001 standards. Versatile Application Scope: Ideal for civil engineering, architecture, scaffolding, shipyards, and structural supports.