Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of en 10219 circular hollow section in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable en 10219 circular hollow section from our factory.
Tianjin Brisk Steel is one of the EN 10219 Circular Hollow Section 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.
EN 10219 CHS Product Specifications
| Item | Details |
|---|---|
| Product Name | EN 10219 Circular Hollow Section |
| Manufacturing | Cold formed welded |
| Applicable Standard | EN 10219-1 / EN 10219-2 |
| Profile | Circular Hollow Section (CHS) |
| Common Steel Grades | S235JRH, S275J0H, S275J2H, S355J0H, S355J2H |
| Dimensions | Outside Diameter × Wall Thickness |
| Length | 6m , 12m |
| Surface Finish | Black, painted, primed, galvanized, or specified coating |
| Inspection | MTC and additional inspection according to order requirements |
Features of EN 10219 Circular Hollow Section
Uniform Circular Profile
The round cross-section provides consistent geometry around the entire tube. This makes EN 10219 CHS suitable for structural members subjected to loads from different directions.
Its smooth external surface also makes it a practical choice for exposed steelwork where a clean tubular appearance is required.
Efficient Structural Performance
The closed circular section can provide a favorable strength-to-weight relationship in many structural applications. Actual performance depends on the outside diameter, wall thickness, steel grade, effective length, loading conditions, and connection design.
The appropriate CHS size should therefore be selected according to engineering calculations rather than nominal diameter alone.
Suitable for Fabrication
EN 10219 CHS can be used in common steel fabrication processes, including:
- Cutting to length
- Welding
- Drilling and machining
- End preparation
- Plate and bracket connections
- Painting and galvanizing
Fabrication procedures should be suitable for the selected steel grade, wall thickness, and project requirements.
Where Does EN 10219 CHS Get Used?
- Trusses and bracing - the round profile's uniform section properties around every axis make connection design simpler where members carry load from multiple directions
- Columns and posts - architectural and structural columns where the circular profile is also the visual specification, not just the structural one
- Handrail and guardrail structure - smaller-diameter CHS, typically galvanized, for exposed outdoor use
- Secondary offshore structure - where a project's fine-grain grade requirement points toward the related EN 10225 offshore variant rather than standard EN 10219, we can advise which applies
EN 10219 CHS Surface Treatment
The required surface condition depends on the final service environment and whether the CHS will undergo additional fabrication or coating.
| Surface Condition | Typical Use |
|---|---|
| Black / Bare | General structural fabrication or subsequent surface treatment |
| Primer | Preparation for a subsequent coating system |
| Painted | Projects requiring specified paint protection |
| Hot-Dip Galvanized | Structures exposed to atmospheric or outdoor environments |
| Customer-Specified Coating | Projects with defined corrosion-control requirements |
For galvanized CHS, the purchaser should confirm whether galvanizing will take place before or after fabrication, since fabrication details can affect the treatment process.
A Case Worth Knowing
A fabricator pricing a truss package specified wall thickness one size heavier than the connection design required for a run of 168.3mm OD CHS bracing, based on a cold-formed corner-toughness allowance their detailer had carried over from a previous SHS project. Across the order - approximately 8.5 tonnes of tube - the unnecessary wall-thickness step added roughly USD 1,900 to the material cost with no structural benefit, since the toughness concern the allowance was meant to cover doesn't apply to a section with no formed corners in the first place. Once flagged, the order was re-priced against the connection design's actual requirement rather than a rule of thumb built for a different shape.
Why Source EN 10219 CHS From Us?
- Full diameter range from 21.3mm to 610mm OD in standard cold-formed production, larger sizes on request
- 100% weld seam testing on every length, not batch-sampled
- Both grade families produced - non-alloy and fine-grain, so mixed-grade orders run from one facility
- Full mill certification on every order, with CE documentation coordinated for EU-bound shipments when specified up front
- Export experience across the Middle East, Southeast Asia, Europe, and New Zealand
FAQ
Q: Is EN 10219 CHS sized the same way as SHS or RHS?
A: No - CHS is specified by outside diameter and wall thickness (e.g. 168.3mm OD x 6mm), while SHS/RHS use a width-by-height-by-thickness convention. Confirm which convention your drawing is using before placing an inquiry.
Q: Does cold-formed CHS need the same corner-toughness allowance as cold-formed SHS or RHS?
A: No - the corner-toughness concern in cold-formed section comes from the sharp bend radius at formed corners, and CHS has no corners. Applying an SHS/RHS-based allowance to a CHS order typically adds unnecessary wall thickness and cost.
Q: Can EN 10219 CHS be substituted with EN 10210 CHS at the same size?
A: Not without engineering review - one is cold-formed, the other hot-finished, and they carry different design wall thickness assumptions in most structural codes even at matching nominal dimensions.
Q: What do you need to quote an EN 10219 CHS order?
A: Outside diameter, wall thickness, grade (or your application if you're not sure which grade applies), length, quantity, and finish. We'll confirm pricing, lead time, and certification package from there.
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