Steel square tube steel S355j2 pipe hollow section cut-to-size steel tube square tube
€1.32
VAT included
Square steel tube – closed profile with high spatial stiffness, about 35% higher bending stiffness than round tubes, good workability, high mechanical and thermal strength. Used in mechanical engineering, construction, aircraft and shipbuilding, and the automotive industry. Available from Auremo.
Length tolerance +/-2mm
Description:
The main advantage of a square or rectangular tube is its pronounced spatial stiffness compared to products with a circular cross-section. It is a closed profile with four stiffeners. If the structural tube is used as a load-bearing member and the load is applied at an angle of 90° to the plane, the bending stiffness of the profile is about 35% higher than that of the round counterpart.
Rectangular and square tubes are much easier to work with due to their smooth surface. They are easier to prime and paint, and protective coatings adhere better to the surfaces.
The steel profile tube has a relatively wide range of applications. A well-finished profile tube is used in pipeline construction where no special requirements are placed, but also as a structural element, as a support, and for cable routing. The broad application range of the shaped tubular products is explained by the fact that these products have higher mechanical strength and a shape that is best suited for designing various structures.
Properties of square tubes:
- good workability
- high mechanical and thermal strength
- high tensile strength
Main areas of application for square tubes:
- mechanical engineering
- construction
- aircraft and shipbuilding
- automotive industry
In our online shop Auremo, you will always find square tubes of the highest quality. We always keep square tubes in stock because they are in very high demand. If you have any questions, please contact us—we will be happy to help you quickly.
Chemical composition (in %)
| C | Mn | P | S | Cu | N |
| max. 0.17% | 1.4% | 0.035% | 0.035% | 0.55% | 0.012% |
Technical data:
| Brand: | Auremo |
| Manufacturer part number: | Not applicable |
| Type: | Square, 4-sided, square tube, profile, square tube, pipe |
| Material: | Steel |
| Mechanical properties (room temperature): | |
| Hardness HB | 300-500 |
| 0.2% proof strength Rp - N/mm2: | 215-235 |
| Tensile strength Rm: | 360-510 |
| Elongation A5%: | 20 |
| Further information: | |
| Density: | 7.85 g/cm³ |
| Specific heat J/kg K: | 461 |
| Thermal conductivity W/(mK): | 54 |
| Electrical resistance Ω·mm2/m: | 0.15 |
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Reviews
By
eBay
B.
on
14 Aug 2026
(Steel square tube steel S355j2 pipe hollow section cut-to-size steel tube square tube) :
(5/5)
By
eBay
B.
on
13 Aug 2026
(Steel square tube steel S355j2 pipe hollow section cut-to-size steel tube square tube) :
(5/5)
By
eBay
B.
on
30 Jul 2026
(Steel square tube steel S355j2 pipe hollow section cut-to-size steel tube square tube) :
(5/5)
Square steel tube – closed profile with high spatial stiffness, about 35% higher bending stiffness than round tubes, good workability, high mechanical and thermal strength. Used in mechanical engineering, construction, aircraft and shipbuilding, and the automotive industry. Available from Auremo.
Steel square tube steel S355j2 pipe hollow section cut-to-size steel tube square tube
€1.32
VAT included