Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of cold formed structural steel tube in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable cold formed structural steel tube from our factory.
PRODUCT
Tianjin Brisk Steel focus on produce and supply hollow section and steel pipe
What Cold Formed Structural Steel Tube Do We Supply?
| Item | Our Cold Formed Range |
|---|---|
| Profiles | SHS, RHS, CHS |
| Square size | 20 x 20 mm to 400 x 400 mm |
| Rectangular size | 40 x 20 mm to 500 x 300 mm |
| Round OD | 21.3 mm to 508 mm |
| Wall thickness | 1.5 mm to 20 mm (depends on size) |
| Lengths | 6 m and 12 m, custom cut lengths available |
| Specifications | EN 10219, ASTM A500, AS/NZS 1163, JIS G3466 |
| Grades | S235JRH, S275J0H, S355J2H, A500 Gr.B / Gr.C, STKR400 / STKR490 |
| Finishes | Black, oiled, painted, hot-dip galvanized |
Why Does Cold Forming Suit Structural Work?
- Strength from the process: forming at room temperature work-hardens the steel, so the formed zones of the section are stronger than the flat coil they came from. You gain load capacity without paying for a higher grade.
- Lighter for the same job: because the wall is held to a controlled thickness, designers can select thinner walls where loads allow, which reduces steel weight, freight and erection effort.
- Tighter geometry: roll forming holds face flatness, corner radius and squareness within a narrow band, which matters when parts are cut, welded and bolted repeatedly.
- Clean surface: with no hot-rolling scale, the tube goes straight to painting, powder coating or galvanizing.
How Do We Keep Cold Formed Sections Consistent From Bar to Bar?
- Coil approval: each coil is matched to its mill certificate before slitting, and every bundle carries a heat number.
- Controlled forming: the roll sets are kept dedicated to each size group, so the same profile is produced with the same tooling.
- In-line checks: operators measure width, height, wall and corner shape at intervals during the run, not only at the end.
- Straightness and twist control: full-length bars are checked before bundling, since bowed or twisted tubes cost fabricators the most time.
- Lot testing: tensile, flattening and bend tests are carried out by lot, with results recorded on the mill test certificate.
When Should You Look at a Hot-Finished Section Instead?
We supply both, so we will recommend the right one. Cold formed tube is our first choice for most building frames, trusses, racking, solar structures and machinery. For very heavy walls, sections under demanding fatigue or low-temperature conditions, or designs that specifically call for hot-finished properties, we quote EN 10210 hot-finished sections instead. If you are unsure which your drawing needs, send it to us and we will tell you.
Case: How Did a Modular Builder Cut Fit-Up Rejects?
A modular building manufacturer in Australia ran robotic welding on 240 steel frames, each using 80 x 80 x 3 mm SHS columns. Their previous tube supply had inconsistent corner radius and face flatness, and about 7% of parts failed robot fit-up and had to be pulled for manual rework.
We supplied cold formed SHS to the same drawing with dimensional checks on each lot. Fit-up rejects dropped to under 1%, which meant roughly 14 fewer frames' worth of rework across the order and a steadier robot cell schedule.
Which Finishes and Services Can We Add?
- Black or oiled for your own coating line
- Primer or paint in your chosen color
- Hot-dip galvanized for exposed structures
- Cut-to-length, drilling, notching and end capping to shorten your workshop time
Where Is Our Cold Formed Structural Steel Tube Used?
- Modular buildings, steel frames, mezzanines and canopies
- Roof trusses, purlin supports and facade frames
- Solar mounting, greenhouse and agricultural structures
- Storage racking, conveyor frames and machine bases
- Trailers, truck bodies and light bridges
Frequently Asked Questions (FAQ)
Q: Does cold forming make the tube brittle?
A: Cold work raises strength, and structural grades are specified with impact and elongation requirements to suit their use. For low-temperature or fatigue-critical service, tell us the conditions and we will advise on grade and route.
Q: Can you supply cold formed tube to ASTM and EN at the same time?
A: We can quote to either, and can advise on dual-certified options where the sizes and grades allow.
Q: How thin can the wall be?
A: Our range starts at 1.5 mm, depending on section size. Send us the size and application and we will confirm.
Q: Do you offer galvanized cold formed tube?
A: Yes, with vent and drain details agreed before production.
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