40×20×1.5 mm S420MC–S600MC High-Strength Rectangular Hollow Section
40x20x1.5mm Steel high-strength rectangular tube in S420MC, S500MC, S600MC, S700MC to EN 10219 / EN 10149-2, with an uncoated steel surface suitable for further processing or painting. Nominal weight 1.297 kg/m.
Minimum order
Minimum 10 t per size. If the size is already in the current production cycle, we can accept orders from 5 t. Standard length 6 m; 4–12 m on request. We confirm the minimum, lead time and grade in your quote.
Add to Quote Request
Select length and quantity to add to your quote cart
Minimum order: 10 t per size (from 5 t if the size is in production)
Applications & Usage
This lightweight and decorative Steel high-strength rectangular tube is commonly specified for trim work, framing, display systems, and interior design projects. The 1.5mm wall thickness provides adequate strength for light-duty applications while maintaining workability. The natural mill finish provides a cost-effective solution for applications where aesthetics are secondary. Available in standard lengths of 6m, this profile can be easily cut, drilled, and welded to suit your specific requirements.
Technical Specifications
| Specification | Value |
|---|---|
| Dimensions | 40mm × 20mm × 1.5mm |
| Weight per Meter | 1.297 kg/m |
| Material | Steel |
| Alloy/Grade | S420MC, S500MC, S600MC |
| Standard | EN 10219 / EN 10149-2 |
| Standard Length | 6m |
| Minimum Order per Size | 10 t |
| Cut-to-Length Range | 4000 – 12000 mm |
Section Properties
Nominal values calculated from nominal dimensions to EN 10219-2.
| Property | Value |
|---|---|
| Cross-sectional area(A) | 1.65 cm² |
| Second moment of area(Ix) | 3.27 cm⁴ |
| Second moment of area(Iy) | 1.10 cm⁴ |
| Radius of gyration(ix) | 1.41 cm |
| Radius of gyration(iy) | 0.815 cm |
| Elastic section modulus(Wel,x) | 1.63 cm³ |
| Elastic section modulus(Wel,y) | 1.10 cm³ |
| Plastic section modulus(Wpl,x) | 2.07 cm³ |
| Plastic section modulus(Wpl,y) | 1.27 cm³ |
| Torsional inertia constant(It) | 2.74 cm⁴ |
| Torsional modulus constant(Ct) | 1.91 cm³ |
| Surface area per metre(As) | 0.115 m²/m |
| Length per tonne | 771 m |
High-strength grades for this size
Strength and indicative capacity for each grade this size is rolled in, compared with the S355J2H wall that carries the same bending load in the same outer size.
| Grade | Min. yield ReH | Tensile Rm | Bending Wel·ReH | Axial A·ReH | S355J2H equivalent |
|---|---|---|---|---|---|
| S420MC | 420 MPa | 480–620 MPa | 0.686 kNm | 69.4 kN | 2 mm · 1.68 kg/m (+29%) |
| S500MC | 500 MPa | 550–700 MPa | 0.816 kNm | 82.6 kN | 2.5 mm · 2.03 kg/m (+57%) |
| S600MC | 600 MPa | 650–820 MPa | 0.980 kNm | 99.1 kN | 3.5 mm · 2.66 kg/m (+105%) |
In S600MC, this section (1.30 kg/m) carries the elastic bending load of a 3.5 mm S355J2H wall in the same outer size (2.66 kg/m), which is 105% heavier per metre.
Indicative values from nominal dimensions: Wel × ReH and A × ReH, without buckling, cross-section class or partial safety factors. Not a design check.
Similar Sizes
Explore alternative dimensions that might suit your needs