Tianjin Brisk Steel is one of the manufacturers of Pre galvanized steel pipe in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.
PRODUCT
Tianjin Brisk Steel focus on produce and supply hollow section and steel pipe




International Standard
Common Material Grades
- Carbon Structural Steel: Gr.A/B/C,S235/275/355/420/460,A36,SS400,Q195/235/355,STKR400/490 – the most widely used grades for general building and infrastructure engineering, balancing cost and performance .
- Galvanized Steel: Hot-dip galvanized square tubes for outdoor and humid environment engineering, with enhanced anti-corrosion performance .
Compliant International Standards
- EN10210,EN10219,ASTMA500,ASTM A501,AS1163,JIS G3466. All products pass strict mechanical performance tests (tensile strength, yield strength, elongation) and quality inspections, with complete factory test reports and certification documents to support global engineering project acceptance .
Specification Range
- Side Length: 20mm – 1200mm (custom special sizes available)
- Wall Thickness: 1.2mm – 20mm
- Length: 6m, 9m, 12m standard lengths; customizable fixed-length cutting
- Processing Types: Hot-rolled, cold-formed, ERW welded, seamless
- Surface Treatment: Black pickled, polished, hot-dip galvanized, cold galvanized, anti-rust oil coating, paint finishing
All customized products strictly follow engineering design drawings and industry standards to ensure dimensional accuracy and structural performance meet project construction needs.
Production Quality & Quality Control
- Raw material inspection: Strictly screen qualified steel billets to ensure material composition meets standard requirements
- In-process monitoring: Real-time detection of wall thickness, flatness and straightness during rolling and welding processes
- Finished product testing: Conduct tensile, compression, torsion and impact tests, as well as non-destructive welding flaw detection
- Standard packaging & marking: Professional anti-rust packaging with clear product grade, standard and batch marking for traceability
FAQ
Q: What is the difference between structural square tubes and ordinary decorative square tubes?
A: Engineering structural square tubes adopt higher-standard raw materials and production processes, with stricter mechanical performance indicators, higher load-bearing capacity and structural stability, suitable for building load-bearing and infrastructure projects; decorative square tubes focus more on surface appearance with lower structural strength, only applicable for decorative auxiliary structures.
Q: Which surface treatment is suitable for outdoor engineering?
A: Hot-dip galvanizing is the best choice for outdoor engineering, with a service life of more than 20 years in conventional environments; for high-corrosion coastal and industrial environments, 304 stainless steel tubes or multi-layer anti-corrosion coating treatment is recommended.
Q: Can you provide customized non-standard specifications?
A: Yes. We support customized production of special side lengths, wall thicknesses, lengths and special surface treatments, providing one-stop material solutions for special engineering projects.
Contact Us
Contact us for free samples, detailed technical parameters and exclusive quotation! Brisk Steel adheres to high-quality manufacturing to provide reliable structural steel pipe solutions for global customers.




Hot Tags: steel square tube for engineering construction, China steel square tube for engineering construction manufacturers, suppliers, factory