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40mm x 40mm x 3mm Mild Steel Square Box Section

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20 reviews
Rated 4.4 out of 5 stars
5 stars
(15)
4 stars
(2)
3 stars
(1)
2 stars
(1)
1 star
(1)
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Our 40mm x 40mm square box sections are fabricated from high-strength cold-reduced mild steel conforming to EN10219 standards, delivered in a mill finish. These hollow structural sections (HSS) offer outstanding load-bearing capabilities in a square tubular profile. Available in stock lengths up to 4m with free custom cutting to your specified size.

The unfinished mill surface may have some surface oxidation, while cut ends can exhibit minor burrs. However, these robust and economical 40x40mm square steel box sections provide excellent rigidity and are ideal for construction, manufacturing, and demanding DIY projects requiring durable square hollow section tubing.

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mm
Min: 20mmMax: 4000mm

Approximate Weight: 69.00 g

Free delivery when you spend £250+

  Inc. VAT
Out Of Stock

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Product Information

Shape Square Box Section
Alloy Grade S325JRH
Production Method Cold Formed
Finish Mill Finish
Formability Poor
Weldability Excellent
Corrosion Resistance Poor
Machinability Excellent

Frequently Asked Questions

Have a question? You can find answers to commonly asked questions about our products, delivery, returns, cancellations and more on our FAQs page

Alternatively, for help and assistance, you can use our Live Chat or reach out to us via email using the contact form on our Contact Us page. 

Delivery depends on the size of your order

Reviews

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4.4 / 5 20 reviews
Andrew Twigg, 21st July
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Good product exactly what i ordered and received in time
Verified, Collected by Cut My
customer, 15th July
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Wouldn't use again
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K Turnbull, 9th July
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Order arrived as specified. A*
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John Stacey, 4th July
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Not delivered when stated, but once contacted delivered within 2 days. The product is excellent though & good quality.
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BRADLEY ORCHARD, 22nd June
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Turned up as 25mm angle and still no resolutions or contact after 2 weeks
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andrew aston, 13th June
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excellent product many thanks
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Grant McMurray, 11th June
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Good service, will use again for this kinda thing
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David Cooper , 10th June
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Exerlent service all materials cut to size
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Turner, 9th June
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Did the job
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Dainius B., 5th June
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Nice, clean metals... ideally, according to the desired measurements, cut.. very well packed and fast delivery... Excellent.. Thank you
Verified, Collected by Cut My
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