Square and rectangular steel tube
COMARFER stocks black steel square tube from 20 × 20 to 120 × 120 mm and rectangular tube from 30 × 20 to 100 × 50 mm, in 6 m bars, in the usual wall thicknesses from 1.5 to 5 mm. These are the tubes of metalwork and fabrication: gates, grilles, fences, railings, metal furniture, frames and light structures. Stock in Aïn Harrouda (Casablanca), free quote within one hour, free delivery within 24 to 48 h in the Casablanca region.
Usual sizes
- Square tube: 20 × 20, 25 × 25, 30 × 30, 35 × 35, 40 × 40, 50 × 50, 60 × 60, 70 × 70, 80 × 80 and 120 × 120 mm
- Rectangular tube: 30 × 20, 40 × 20, 40 × 27, 50 × 30, 60 × 40, 70 × 40, 80 × 40 and 100 × 50 mm
- Wall thickness: from 1.5 to 5 mm depending on the size
- 6 m bars, black steel to be painted or protected
- Other sizes and thicknesses on request
How is the price of square tube calculated?
Tube is sold per 6 m bar or per kilo: price of a bar = its weight × the day's price per kg. Example: a 40 × 40 × 2 mm square tube weighs 2.31 kg/m, i.e. 13.8 kg per 6 m bar. Steel prices change, which is why we do not publish a price list: send your list (sizes, thicknesses, number of bars) and receive your quote within one hour.
Which wall thickness?
For grilles, furniture, frames and light work, 1.5 to 2 mm is usual. For gates, railings and fence posts, 2 to 3 mm. For load-bearing structures (columns, portal frames, machine frames), 3 mm and more, according to the structural design. Tell us the use in your request: we will advise you.
Square or rectangular tube?
Square tube is equally strong in both directions: it suits columns and frames. Rectangular tube is stiffer along its larger side: set on edge, it carries more as a cross member, lintel or light beam, for a similar weight.
Square tube weight
| Size (mm) | Thickness (mm) | Weight (kg/m) | 6 m bar (kg) |
|---|---|---|---|
| 20 × 20 | 1.8 | 0.96 | 5.8 |
| 20 × 20 | 2 | 1.05 | 6.3 |
| 25 × 25 | 1.6 | 1.12 | 6.7 |
| 25 × 25 | 1.8 | 1.25 | 7.5 |
| 25 × 25 | 2 | 1.36 | 8.2 |
| 30 × 30 | 1.9 | 1.60 | 9.6 |
| 30 × 30 | 2 | 1.68 | 10.1 |
| 35 × 35 | 1.6 | 1.63 | 9.8 |
| 35 × 35 | 1.7 | 1.72 | 10.3 |
| 40 × 40 | 2 | 2.31 | 13.8 |
| 40 × 40 | 3 | 3.30 | 19.8 |
| 50 × 50 | 2 | 2.93 | 17.6 |
| 50 × 50 | 3 | 4.25 | 25.5 |
| 60 × 60 | 3 | 5.19 | 31.1 |
| 70 × 70 | 3 | 6.13 | 36.8 |
| 80 × 80 | 3 | 7.07 | 42.4 |
| 120 × 120 | 4 | 14.25 | 85.5 |
| 120 × 120 | 5 | 17.55 | 105.3 |
Rectangular tube weight
| Size (mm) | Thickness (mm) | Weight (kg/m) | 6 m bar (kg) |
|---|---|---|---|
| 30 × 20 | 1.5 | 1.06 | 6.4 |
| 40 × 20 | 1.7 | 1.45 | 8.7 |
| 40 × 20 | 1.8 | 1.53 | 9.2 |
| 40 × 20 | 2 | 1.68 | 10.1 |
| 40 × 27 | 1.6 | 1.55 | 9.3 |
| 40 × 27 | 1.7 | 1.64 | 9.8 |
| 40 × 27 | 2 | 1.90 | 11.4 |
| 50 × 30 | 1.7 | 1.99 | 11.9 |
| 50 × 30 | 2 | 2.31 | 13.8 |
| 50 × 30 | 3 | 3.30 | 19.8 |
| 60 × 40 | 1.6 | 2.38 | 14.3 |
| 60 × 40 | 1.8 | 2.66 | 16.0 |
| 60 × 40 | 2 | 2.93 | 17.6 |
| 60 × 40 | 3 | 4.25 | 25.5 |
| 70 × 40 | 1.8 | 2.94 | 17.6 |
| 70 × 40 | 2.85 | 4.50 | 27.0 |
| 80 × 40 | 1.6 | 2.88 | 17.3 |
| 80 × 40 | 2 | 3.56 | 21.4 |
| 80 × 40 | 2.4 | 4.22 | 25.3 |
| 80 × 40 | 3 | 5.19 | 31.1 |
| 100 × 50 | 3 | 6.60 | 39.6 |
Theoretical weights according to EN 10219 (steel, density 7.85). Usual sizes; other thicknesses on request.
Why buy from COMARFER?
- Large stock in Aïn Harrouda, available immediately
- Free delivery within 24–48 h by our trucks in the Casablanca region
- Free quote within one hour by phone or WhatsApp
- Technical advice to choose the right product
Frequently Asked Questions
What is the price of square tube in Morocco?
The price depends on the size, the wall thickness, the quantity and the day's steel price: we quote per 6 m bar or per kilo. Send us your list by WhatsApp or phone: you receive your quote within one hour during opening hours, with free delivery within 24 to 48 h in the Casablanca region.
How much does a 40 × 40 square tube weigh?
With a 2 mm wall: 2.31 kg/m, i.e. 13.8 kg per 6 m bar. With 3 mm: 3.30 kg/m, i.e. 19.8 kg per bar.
What is black tube?
It is a steel tube without any coating, neither zinc nor paint. It is easy to weld, drill and bend, and is then painted or protected with an anti-rust primer. Our square and rectangular tubes are black steel.
How long are the bars?
Square and rectangular tubes are supplied in 6 m bars.
Do you deliver tubes?
Yes: our trucks deliver free of charge within 24 to 48 h in the Casablanca region: Casablanca, Mohammedia, Berrechid, Had Soualem, Bouskoura, Nouaceur, Dar Bouazza and Médiouna. For another city, mention it in your quote request: delivery is possible on request.
Where can I buy steel tubes in Casablanca?
At COMARFER, a black steel tube supplier in Aïn Harrouda (Zenata 4 Industrial Zone, Lot 143): square, rectangular and round tubes in stock, in 6 m bars. Free delivery within 24 to 48 h in Casablanca, Mohammedia, Berrechid and the surrounding area; free quote in under an hour on WhatsApp at 06 61 85 86 10.