Profile Section
280x72x4mm S235JR Uncoated Steel U Profile
The 280x72x4mm steel U profile is a cold roll-formed plain channel to EN 10162 with a 280 mm web, 72 mm flanges and 4 mm sheet thickness, weighing a nominal 13.31 kg/m. Produced to order in uncoated S235JR steel, the open unlipped face slides cleanly over panels and boards, making it the standard track, edge and closure channel in light steel framing and general fabrication — supplied cut to your exact length. This variant is uncoated cold-rolled structural strip in grade S235JR (EN 10025), minimum yield about 235 MPa. The surface is bare — specify shop painting or hot-dip galvanizing in the quote when the profile will be used outdoors.
Made to Order — Roll Formed
This profile is roll-formed to order in your exact length (1–15 m; longer on project basis). Minimum production run is approx. 3000 kg per size and grade. Add your sizes to a quote request and our team confirms lead time and pricing within one business day.
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Minimum order: 19 pieces
Minimum total length: 228 m
Optional made-to-order requirements — added to this line for our production team.
Applications & Usage
U 280x72x4 serves as top and bottom tracks in light steel framing, edge and closure channels on sandwich panels and trapezoidal sheets, sliding-gate and door guides, machine guards, and cable or pipe routing in industrial fit-outs. Roll forming keeps the channel straight and uniform over the full length, so profiles arrive ready to fix. S235JR is the general structural grade for indoor frames, painted purlins, and profiles that will be hot-dip galvanized after roll forming. At a nominal 13.31 kg/m and cut-to-length production from 1 to 15 m, material usage is optimized with no offcuts on site. Minimum production run is approximately 3000 kg per size and grade — add your sizes to a quote request and our team confirms exact tonnage, lead time and delivered pricing.
Technical Specifications
| Specification | Value |
|---|---|
| Dimensions | 280mm × 72mm × 4mm |
| Weight per Meter | 13.314 kg/m |
| Material | Steel |
| Alloy/Grade | S235JR |
| Standard | EN 10162 / EN 10346 |
| Profile Type | U (plain channel) |
| Developed Width | ≈ 424 mm |
| Cross-Section Area | ≈ 16.96 cm² |
| Moment of Inertia Iₓ | ≈ 1860.7 cm⁴ |
| Moment of Inertia Iᵧ | ≈ 74.2 cm⁴ |
| Section Modulus Wₑₗ,ₓ | ≈ 131.03 cm³ |
| Section Modulus Wₑₗ,ᵧ | ≈ 12.01 cm³ |
| Minimum Production Run | 3 t |
| Finish | S235JR Uncoated |
| Available Lengths | 6m, 12m |
| Standard Length | 6 m |
| Minimum Order Length | 228 m |
| Cut-to-Length Range | 1000 – 15000 mm |
Indicative elastic section properties computed from the nominal centerline (thin-walled, corner radii ignored). For preliminary sizing only — not a substitute for a stamped structural calculation.
Indicative load span (single span, simply supported)
Allowable uniformly-distributed load (kN/m) limited by elastic bending about the strong axis (γ = 1.5 on yield, S235JR). Deflection is not checked and usually governs long spans. Indicative only — confirm with a project calculation.
| Span | Max UDL |
|---|---|
| 2 m | ≈ 41.06 kN/m |
| 3 m | ≈ 18.25 kN/m |
| 4 m | ≈ 10.26 kN/m |
| 5 m | ≈ 6.57 kN/m |
| 6 m | ≈ 4.56 kN/m |
Made to Order — Roll Formed
This profile is roll-formed to order in your exact length (1–15 m; longer on project basis). Minimum production run is approx. 3000 kg per size and grade. Add your sizes to a quote request and our team confirms lead time and pricing within one business day.
Cut to exact length
Any length from 1 to 15 m — no offcut waste on site
Material options
Uncoated S235JR cold-rolled structural strip. Paint or hot-dip galvanize after forming when corrosion protection is required.
In-line punching
Mounting holes and slots punched to your drawing during roll forming
Certified quality
Produced to EN 10162; EN 10204 3.1 mill certificates available
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