Tianjin Brisk Steel is one of the manufacturers of Cold Formed Square Hollow Section 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
What is a Cold Formed Square Hollow Section?
A Cold Formed Square Hollow Section (SHS) is a structural steel tube produced by progressively bending flat-rolled steel coils at room temperature into a square geometry. The longitudinal seam is then continuously joined using high-frequency Electric Resistance Welding (ERW).
Because the shaping is conducted entirely without heating the steel above its recrystallization point, the mechanical strain hardening process inherently boosts the steel's yield strength and hardness, resulting in a smooth, scale-free surface finish.
Core International Sourcing Standards
To comply with local building regulations and safety standards across North America, Europe, and Asia-Pacific markets, our cold formed square hollow sections are manufactured to strict international criteria:
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EN 10219 (S235JRH, S275J0H, S355J0H/J2H): The primary European standard governing cold formed welded structural hollow sections, providing verified low-temperature impact toughness options.
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ASTM A500 (Grades A, B, and C): The standard North American specification for cold formed carbon steel structural tubing in round and shaped profiles.
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AS/NZS 1163 (C250/C350L0): The governing specification for structural steel hollow sections utilized in Australian and New Zealand construction networks.
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JIS G3466 (STKR 400, STKR 490): Japanese standard
PROCESS
Tianjin Brisk Steel Can Provide Surface Treatment and Processing Service
Frequently Asked Questions (FAQ)
Q: What does SHS stand for in steel pipe?
A: SHS refers to Square Hollow Section, which is the international standard term for square hollow steel tube, widely used in steel trade and engineering design.
Q: What corner radius can be expected on cold formed square pipes?
A: Per standard engineering guidelines (such as EN 10219 or ASTM A500), the outside corner radius of a cold formed square tube is dependent on its wall thickness ($t$). For standard gauges, the corner radius typically ranges between 1.5t to 3.0t, ensuring a structural profile that accommodates clean connecting alignments.
Q: Can cold formed square tubes be hot-dip galvanized?
A: Yes, absolutely. While they are produced with a bare, lightly oiled mill finish to prevent storage rust, cold formed tubes are fully compatible with post-production hot-dip galvanization or high-durability powder coating to provide long-term corrosion protection in severe outdoor environments.
Q: Is cold formed SHS suitable for outdoor use?
A: Yes. We provide hot dipped galvanized cold formed SHS pipes with excellent anti-rust and anti-corrosion performance, perfectly adapted to outdoor open-air environments, solar supports, municipal guardrails and other scenarios.
BRISK STEEL
As an ISO 9001 certified manufacturer and global exporter, our facility integrates advanced rolling mills, automated sizing lines, and rigorous non-destructive testing (NDT) to ensure every tube delivers maximum field performance. We provide comprehensive EN 10204 3.1 Material Test Certificates (MTC) with every shipment, ensuring complete traceability and compliance with your local building codes.
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