Special tube shapes
| Shape | Size range | Wall | Material | Typical use |
|---|---|---|---|---|
| Flat-oval | 20×10 to 100×50 mm | 0.8–2.5 mm | CR, galvanized, stainless 304 | Furniture, handrails, display stands, stair rails |
| Elliptical (true oval) | 30×15 to 120×60 | 1.0–2.5 | CR, galvanized, stainless | Furniture legs, exhaust, architectural |
| D-shaped | 25 to 80 mm | 1.0–2.0 | Galvanized, CR | Greenhouse arches, trailer bows, handrails against walls |
| Half-round | 30 to 100 mm | 1.0–2.0 | Galvanized, PPGI | Trim, gutters, decorative |
| Triangular / hexagonal | 20–60 mm | 1.0–2.0 | CR, galvanized | Furniture, fittings |
| Round with internal ribs / keys | 20–60 mm | 1.0–2.0 | Galvanized, CR | Telescopic poles, shelving uprights |
Lengths 1–8 m, cut ±1 mm; polished or film-protected stainless; mill or painted finish on steel.
Custom open profiles
| Family | Examples | Thickness | Material | Use |
|---|---|---|---|---|
| Hat / omega / top-hat | Custom heights and feet, clip slots | 0.5–3.0 | Galvanized, ZM, PPGI | Cladding rails, solar, ceilings |
| Channels and U | Lipped, unlipped, stiffened, with return | 0.6–4.0 | All | Frames, tracks, door frames, conveyor sides |
| Door and window frames | Multi-bend profiles with seals grooves | 0.8–2.0 | Galvanized, PPGI, stainless | Steel doors, fire doors, windows |
| Rails and guides | Sliding-door tracks, drawer rails, curtain rails | 0.8–2.5 | Galvanized, stainless | Doors, furniture, industrial |
| Trailer and body profiles | Side rails, floor bearers, cant rails | 2.0–4.0 | HRPO S355MC, galvanized | Trailers, truck bodies |
| Shelving and racking | Uprights with slots, beams, box beams | 1.2–2.5 | Galvanized, painted | Racking, mezzanines |
| Cable management | Cable-tray sides, ladders, wire-mesh frames | 0.8–2.0 | Galvanized, ZM, stainless | Electrical |
| Agricultural | Greenhouse gutters, crop-support rails, fence posts | 1.0–2.5 | Galvanized, ZM | Greenhouses, farms |
| Solar | Rails, clamps, torque-tube brackets | 1.5–3.0 | ZM250–310, HDG | PV mounting |
From drawing to production
Send a DXF or sketch with dimensions and tolerances, material, thickness, length and yearly quantity. Our tooling office checks formability (bend radii ≥ 1t, minimum leg lengths, springback), proposes strip width and material, and quotes tooling and unit price. Tooling (3–6 weeks) is built and kept in-house for your repeat orders; first-article samples are sent for approval before the run. In-line punching, notching, embossing, cut-to-length and end-forming are added as needed.
Materials
- Hot-rolled HRPO S235JR / S355MC 2–4 mm (structural and trailer profiles)
- Cold-rolled DC01–DC04 0.5–3 mm (painted or plated after forming)
- Pre-galvanized DX51D+Z140–Z275 (most profiles)
- Zinc-magnesium ZM250–ZM310 (outdoor, solar, agricultural)
- Pre-painted PPGI, any RAL (visible profiles, film-protected)
- Stainless 304 / 316L 0.5–2 mm, mill or polished
- Aluminium 5754 / 6xxx on request
Tolerances and quality
Per EN 10162: dimensions ±0.5 mm (≤ 50 mm) to ±1.0 (> 150), angles ±1°, straightness 1 mm/m, twist 1°/m; tighter on request. First-article inspection report, in-process checks every 100 m, and EN 10204 3.1 for the strip.
Pricing
Unit price per metre or per ton = strip material at the relevant band (galvanized, cold-rolled, stainless, ZM) plus forming, punching and cutting; plus one-time tooling. Typical: simple hat or channel from galvanized strip 15–30% above the strip price per ton; complex multi-bend or stainless profiles more. Firm quote from your drawing within two working days.
Bands from our weekly export list (September 2026), FOB Istanbul, full-container quantities, excluding freight and certificates. Firm price per project on RFQ within one working day.
Export and packing
Bundled per profile, nested, strapped on bearers, film for painted and stainless; long profiles to 11.8 m in 40' HC, 13.5 m by truck. HS code 7216.61 (steel profiles), 7306.69 (special-shape tubes), 7222.40 (stainless profiles).
| Term | Detail |
|---|---|
| MOQ | 5 t per section (2 t stainless); tooling amortised or invoiced |
| Incoterms | FOB Istanbul · CIF / CFR Gulf, Africa · DAP EU, Balkans, Iraq, Caucasus · DAP Aktau |
| Lead time | Tooling 3–6 weeks; runs 7–12 working days |
| Packing | Nested bundles on bearers, strapped; film for painted / stainless |
| Container / truck | 40' HC ≈ 18–24 t depending on profile · truck 22–24 t |
| Documents | Invoice, packing list, EN 10204 3.1, first-article report, certificate of origin |
| Payment | Tooling 100% with order; production 30% advance, balance against B/L copy |
Certificates
EN 10204 3.1 for strip, first-article and dimensional reports, certificate of origin; CE under EN 1090 for structural profiles on request.
How to order
Send the profile drawing (DXF/PDF), material, thickness, length, punching and quantity; we reply with feasibility, tooling and unit price within two working days.
Standards
- EN 10162 (cold-rolled steel sections — technical delivery conditions, tolerances)
- EN 10305-3 / -5 (welded precision tubes, round and square/rectangular; special shapes by analogy)
- EN 10346 / EN 10130 / EN 10088-2 (strip materials)
- EN 1090 (structural CE where applicable)
Grades
Grade data sheets (chemistry, mechanicals, equivalents) are on our reference site: DX51D · DC01 · S235JR · 304 (1.4301)
Frequently asked questions
Can you make a profile that is not in your catalogue?
Yes — that is the point of this page: send the drawing, we design and build the tooling in-house (3–6 weeks) and roll it from 5 t per run, keeping the tooling for your repeat orders.
What sizes of oval tube do you make?
Flat-oval 20×10 to 100×50 mm, elliptical 30×15 to 120×60, D-shape 25–80 mm, walls 0.8–2.5 mm, in cold-rolled, galvanized or stainless 304, lengths to 8 m.
What is the minimum order for a custom profile?
5 t per section in steel (2 t in stainless), plus the tooling, which is invoiced or amortised over the first orders.
Which materials can be roll-formed?
Hot-rolled HRPO to 4 mm, cold-rolled, pre-galvanized, zinc-magnesium, pre-painted (with film), stainless 304/316L and aluminium — bend radius at least 1× thickness.
Can holes and slots be punched in line?
Yes — punching, notching, embossing and end-forming are integrated in the line, so the profile arrives ready to assemble.
How long does tooling take?
3–6 weeks depending on complexity, then first-article samples for approval and 7–12 working days per production run.