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Need help? Call Us 01744 520 110 or email sales@industrialsuppliesco.co.uk
Description
A 3m length of 50 x 50mm mild steel square box section with a 2.5mm wall, in EN 10219 S235JRH steel. Square hollow section for gates, railings, frames and general fabrication, supplied bare and ready to cut, drill, weld and paint. Each length weighs about 11 kg. The price shown is for one 3m length.
Why choose this box section
The heaviest size in the range. 50mm box is the stiffest here, for posts, bases and frames that carry heavy loads or long spans.
Stiff for its weight. A closed square section resists bending and twisting far better than flat bar or angle of the same weight, and gives clean, flat faces to weld and fix to.
EN 10219 S235JRH steel. The standard grade for welded structural hollow sections, easy to weld with MIG, TIG or stick.
A full 3m length. Long enough for gate and frame members with little waste.
Where it is used
Gate posts, heavy frames and bases, canopy and carport frames, platform framing, trailer chassis and general structural fabrication.
Specifications
| What you get | One 3000mm length |
|---|---|
| Section | Square hollow, 50 x 50mm |
| Wall thickness | 2.5mm |
| Length | 3000mm |
| Grade | EN 10219 S235JRH |
| Finish | Bare black steel (unpainted) |
| Weight | About 11 kg per length |
Other box section sizes
| You want | Choose |
|---|---|
| 20 x 20mm, about 4 kg | Box section 20 x 20mm, 3m |
| 25 x 25mm, about 5.2 kg | Box section 25 x 25mm, 3m |
| 30 x 30mm, about 6.4 kg | Box section 30 x 30mm, 3m |
| 40 x 40mm, about 8.7 kg | Box section 40 x 40mm, 3m |
| 50 x 50mm, about 11 kg | This box section |
| Every size in one listing | Square box section, choose your size |
| Box with fixing flanges for board gates | T shaped profiled box section |
| Open L section | Angle iron 40 x 40 x 5mm |
Cutting, welding and finishing
Cut with a metal cutting disc, band saw, chop saw or hacksaw, and deburr the cut. Mitre the corners at 45 degrees for neat gate and frame joints. Clean the faces where you weld, then weld with MIG, TIG or stick. Cap or seal open ends on outdoor work so water cannot collect inside. To finish, degrease, prime with a metal primer and top coat, or have the finished work hot-dip galvanised.
Frequently asked questions
Is the price for one length?
Yes, for one 3000mm length. For larger quantities, call us for a quantity price.
Is it painted or galvanised?
No. It is bare steel and will rust if left outside unprotected, so prime and paint it or galvanise it once your work is made.
What does S235JRH mean?
It is the steel grade for hollow sections: a minimum yield strength of 235 N/mm², impact tested at room temperature (JR), with H for hollow section, to EN 10219.
Can you cut it to length?
It is supplied in 3m lengths. Call us before you order if you need it cut, and we will tell you what we can do.
Ordering and delivery
Order online, with Express UK Delivery to your site. Steel lengths are long items, so call 01744 520 110 or email sales@industrialsuppliesco.co.uk if you need to confirm delivery access or a date before you order.
Our products have been used by
Logos are for illustrative purposes only and do not imply official endorsement
About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
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