Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of en 10219 s355nh steel tube supplier in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable en 10219 s355nh steel tube supplier from our factory.
Tianjin Brisk Steel is one of the manufacturers of EN 10219 S355NH Steel Tube Supplier 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
Technical Breakdown of EN 10219 S355NH
Understanding the nomenclature helps procurement managers and engineers match exact project requirements:
- EN 10219: The European standard for cold-formed welded structural hollow sections of non-alloy and fine-grain steels.
- S355: Specifies a minimum yield strength of 355MPa for wall thicknesses ≤ 16mm.
- N: Indicates a normalized or normalized-rolled material condition, offering a uniform fine-grain crystalline structure.
- H: Stands for "Hollow Section."
Product Range and Available Profiles
We manufacture and supply EN 10219 S355NH steel tubes in three primary profiles to optimize your structural layouts:
- Circular Hollow Sections (CHS): Ideal for columns, aesthetic bracing, and fluid pipelines.
- Square Hollow Sections (SHS): Perfect for symmetric loading, equipment manufacturing, and balanced structural frames.
- Rectangular Hollow Sections (RHS): Optimized for bending moments and structural beams where load is unidirectional.
| Profile Type | Dimension Range | Wall Thickness (WT) |
| CHS (Round) | Outer Diameter: 21.3mm - 1420mm | 2.0mm - 60mm |
| SHS (Square) | Dimensions: 20X20mm - 1200X1200mm | 2.0mm - 50mm |
| RHS (Rectangular) | Dimensions: 40X20mm - 1500X1000mm | 2.0mm - 50mm |
Frequently Asked Questions (FAQ)
Q: Does S355NH require pre-heating before welding?
A: Thanks to its optimized fine-grain chemical composition and low carbon content, EN 10219 S355NH typically does not require pre-heating under standard workshop conditions for ambient temperatures. However, if you are welding exceptionally thick sections ( ≥15mm) or working in sub-zero site conditions, a slight pre-heat is recommended following standard welding codes
Q: What surface protection coatings can be applied to these tubes?
A: We offer multiple surface treatment options based on your final application. These include light oiling for temporary rust prevention during shipping, black anti-corrosion painting, offshore-grade epoxy coatings, and Hot-Dip Galvanizing (HDG) for long-term atmospheric corrosion resistance.
Q: Will my shipment include a Mill Test Certificate (MTC)?
A: Yes. All shipments of EN 10219 S355NH tubes are accompanied by a fully traceable Mill Test Certificate according to EN 10204 3.1 (or 3.2 if requested by a third-party inspector). The MTC details the specific heat number, chemical ladle analysis, mechanical tensile strength, yield point, and low-temperature Charpy V-notch impact test values.
Q: What is the difference between EN 10219 S355NH and EN 10210 S355NH?
A: The primary difference lies in the forming process. EN 10219 governs cold-formed welded hollow sections, which may possess localized internal stresses at the corners due to the cold-shaping process. EN 10210 governs hot-finished structural hollow sections. Because S355NH under EN 10219 utilizes normalized or heat-treated fine-grain steel, it bridges much of the performance gap, offering mechanical properties that approach those of hot-finished tubes at a more competitive price point.
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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