Profile Section
260x90x2.5mm S235JR Uncoated Steel Sigma Profile
The 260x90x2.5mm steel Sigma profile is a cold roll-formed section to EN 10162 with a stiffened, indented 260 mm web, 90 mm flanges with 30 mm edge lips and 2.5 mm sheet thickness, weighing a nominal 10.14 kg/m. Produced to order in uncoated S235JR steel, the Σ geometry moves the shear centre towards the section centroid — higher load capacity and less twist than an equivalent C profile at the same weight. 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.
Add to Quote Request
Select length and quantity to add to your quote cart
Minimum order: 25 pieces
Minimum total length: 300 m
Optional made-to-order requirements — added to this line for our production team.
Applications & Usage
Sigma 260x90x2.5 is the weight-optimized choice for solar tracker and fixed-tilt rafters, long-span purlins, racking and shelving uprights, and light steel structures where every kilogram of steel and foundation load counts. The indented web raises buckling resistance, allowing thinner material for the same performance. 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 10.14 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 | 260mm × 90mm × 2.5mm |
| Weight per Meter | 10.138 kg/m |
| Material | Steel |
| Alloy/Grade | S235JR |
| Standard | EN 10162 / EN 10346 |
| Profile Type | Sigma (Σ) |
| Edge Lip (c) | 30 mm |
| Developed Width | ≈ 517 mm |
| Cross-Section Area | ≈ 12.91 cm² |
| Moment of Inertia Iₓ | ≈ 1331.9 cm⁴ |
| Moment of Inertia Iᵧ | ≈ 139.3 cm⁴ |
| Section Modulus Wₑₗ,ₓ | ≈ 101.48 cm³ |
| Section Modulus Wₑₗ,ᵧ | ≈ 22.49 cm³ |
| Minimum Production Run | 3 t |
| Finish | S235JR Uncoated |
| Available Lengths | 6m, 12m |
| Standard Length | 6 m |
| Minimum Order Length | 300 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 | ≈ 31.80 kN/m |
| 3 m | ≈ 14.13 kN/m |
| 4 m | ≈ 7.95 kN/m |
| 5 m | ≈ 5.09 kN/m |
| 6 m | ≈ 3.53 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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