Profile Section
180x70x3mm S235JR Uncoated Steel Z Profile
The 180x70x3mm steel Z profile is a cold roll-formed purlin section to EN 10162 with a 180 mm web, opposed 70 mm flanges with 25 mm edge lips and 3 mm sheet thickness, weighing a nominal 8.71 kg/m. Produced to order in uncoated S235JR steel, the Z geometry nests and overlaps at supports, forming structurally continuous roof and wall purlin lines that carry more load with less steel. 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
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Minimum order: 29 pieces
Minimum total length: 348 m
Optional made-to-order requirements — added to this line for our production team.
Applications & Usage
Z 180x70x3 carries roof and wall cladding on industrial halls, warehouses, agricultural buildings and solar carports; overlapped and bolted at supports it forms continuous multi-span purlin lines. Cleat and overlap holes are punched in-line to your purlin schedule, and anti-sag accessories are configured per project. 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 8.71 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 | 180mm × 70mm × 3mm |
| Weight per Meter | 8.713 kg/m |
| Material | Steel |
| Alloy/Grade | S235JR |
| Standard | EN 10162 / EN 10346 |
| Profile Type | Z (purlin) |
| Edge Lip (c) | 25 mm |
| Developed Width | ≈ 370 mm |
| Cross-Section Area | ≈ 11.10 cm² |
| Moment of Inertia Iₓ | ≈ 576.9 cm⁴ |
| Moment of Inertia Iᵧ | ≈ 142.1 cm⁴ |
| Section Modulus Wₑₗ,ₓ | ≈ 63.05 cm³ |
| Section Modulus Wₑₗ,ᵧ | ≈ 19.87 cm³ |
| Minimum Production Run | 3 t |
| Finish | S235JR Uncoated |
| Available Lengths | 6m, 12m |
| Standard Length | 6 m |
| Minimum Order Length | 348 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 | ≈ 19.75 kN/m |
| 3 m | ≈ 8.78 kN/m |
| 4 m | ≈ 4.94 kN/m |
| 5 m | ≈ 3.16 kN/m |
| 6 m | ≈ 2.19 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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