EN10219 ASTM A500 Hot Dip Galvanized Square Hollow Section HSS SHS High Zinc Coating Square Pipe for Outdoor Building Projects
Product Spotlights
- Multiple steel grades optional: Q235B, Q355B, S235JR. Stable mechanical property, excellent welding and bending performance.
- ERW welded forming. Straight tube body, smooth surface, uniform wall thickness and clean cut ends.
- Wide range of sizes in stock. Custom cutting service available .
- Factory direct supply, stable production capacity
Product Overview
Hot dip galvanized square tube and rectangular tube, also known as SHS and RHS hollow section, are ERW electric resistance welded carbon steel hollow profiles. After hot-dip galvanizing treatment, the pipe surface forms a uniform zinc coating to achieve excellent anti-corrosion and rust-proof performance. Widely used in greenhouse, fence, steel structure frame, building engineering, support brackets and other construction projects. We are a professional steel manufacturer in China, with large ready stock, complete specifications and custom cutting service. Full material certificates can be supplied for overseas engineering projects.
Product Specification
| Item | Specification |
|---|---|
| Product Name | Hot Dip Galvanized Square Tube / Rectangular Tube, SHS & RHS Hollow Section |
| Material | Carbon Steel |
| Grades | Q235B, Q355B, S235JR, S355JR, ASTM A500 Grade B/C |
| Standard | GB/T6728, EN10210, ASTM A500 |
| Surface Treatment | Hot Dip Galvanized |
| Cross Section | Square / Rectangular Hollow |
| Manufacturing Process | ERW Electric Resistance Welded |
| Length | 6m, 9m, 12m or cut to custom length |
| Size Range | Complete sizes available, from small to large square & rectangular dimensions |
| Tolerance | Meet GB / EN / ASTM standard tolerance |
| Certificate | 3.1 Mill Test Certificate, SGS Test Report |
| MOQ | 1 Ton |
| Supply Capacity | 8000 Ton per month |
| Payment Term | TT, LC |
| Trade Term | FOB, CFR, CIF, DDP |
| Lead Time | 7–15 days for stock items |
| Packing | Bundled with steel strips |
| Availability | Ready Stock |
| Application | Greenhouse, fence, steel structure frame, building construction, support bracket |
Key Advantages
✅ Strong Anti-corrosion PerformanceHot dip galvanized zinc layer is tightly bonded with steel substrate, effectively resisting rust and corrosion for outdoor and humid environments, extending service life greatly.
✅ Full Size Range & Custom CuttingRich inventory of square and rectangular hollow section in various dimensions. We can cut tubes to your target length, reducing your on-site machining work and saving labor cost.
✅ Stable Mechanical PropertyAdopt high-quality carbon steel raw material. ERW welding technology ensures good straightness, flat surface and reliable weld seam, strong bearing capacity.
✅ Complete Documents & Strict InspectionEvery batch will be inspected before shipment. 3.1 mill test certificate and SGS report can be provided to satisfy third-party inspection requirements for international projects.
✅ Factory Direct Supply & Flexible Trade TermsNo middleman markup, competitive factory price. We support multiple trade terms FOB, CFR, CIF, DDP. TT and LC payment are acceptable.
Application Scenarios
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