Steel structures and machine frames – hollow sections and structural tubes
In short: for steel structures and machine frames we supply hollow sections and structural tubes.
- Hot-finished: EN 10210.
- Cold-formed: EN 10219.
- Grades: S235JRH, S275J0H, S355J2H; for high strength, S460NH and quenched-and-tempered S690QL.
- Stainless hollow sections: for food-industry and outdoor structures.
- Also supplied: fasteners and U-bolts.
This guide is for steel fabricators, machine builders and contractors.
What matters for structural sections
- Hot-finished or cold-formed? Hot-finished sections give more uniform properties and smaller corner radii. Cold-formed sections are more economical.
- Toughness class. JR, J0 and J2 indicate the impact-test temperature. This matters for outdoor and dynamically loaded structures.
- High strength. Q&T steels allow lighter structures, but the welding procedure must match.
Material overview
| Structure | Typical material | Standard |
|---|---|---|
| General steelwork, halls | S235JRH, S355J2H | EN 10219 / EN 10210 |
| Dynamically loaded, outdoor | S355J2H | EN 10210 |
| Cranes, vehicles, lightweight structures | S460NH, S690QL | – |
| Food-machinery frames, railings | 1.4301 / 1.4404 hollow sections | – |
The complete package
- Hollow sections in square, rectangular and circular shapes.
- Stainless hollow sections.
- Fasteners: stainless A2 / A4 bolts, nuts, U-bolts.
- Cut to length on request.
Buyer checklist
- Section size and wall.
- Grade (e.g. S355J2H).
- Hot-finished or cold-formed.
- Lengths or cut to size.
- Certificate: 3.1.
Common mistakes
- Cold-formed sections where the design specifies hot-finished.
- JR instead of J2 in outdoor, dynamically loaded structures.
Frequently asked questions
What is the difference between EN 10210 and EN 10219?
EN 10210 covers hot-finished hollow sections and EN 10219 covers cold-formed ones.
Do you supply stainless hollow sections?
Yes, in 1.4301, 1.4404 and 1.4571, in many sizes.
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Send your section list. We quote hollow sections and fasteners in one offer.
Related: Structural tubes & hollow sections · Stainless fasteners · S355J2H
Send us your material list – one quote for the complete package (pipe, fittings, flanges, gaskets, bolting), sourced direct from manufacturers, no minimum order.
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