220×220×6 mm S420MC–S700MC High-Strength Square Hollow Section
220x220x6mm Steel high-strength square 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 39.59 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 heavy-duty structural Steel high-strength square tube is commonly specified for framework, support structures, machinery bases, and industrial equipment. The 6mm wall thickness provides superior load-bearing capacity 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 | 220mm × 220mm × 6mm |
| Weight per Meter | 39.59 kg/m |
| Material | Steel |
| Alloy/Grade | S420MC, S500MC, S600MC, S700MC |
| 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) | 50.4 cm² |
| Second moment of area(I) | 3813 cm⁴ |
| Radius of gyration(i) | 8.70 cm |
| Elastic section modulus(Wel) | 347 cm³ |
| Plastic section modulus(Wpl) | 402 cm³ |
| Torsional inertia constant(It) | 5976 cm⁴ |
| Torsional modulus constant(Ct) | 521 cm³ |
| Surface area per metre(As) | 0.859 m²/m |
| Length per tonne | 25.3 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 | 146 kNm | 2118 kN | 8 mm · 51.5 kg/m (+30%) |
| S500MC | 500 MPa | 550–700 MPa | 173 kNm | 2522 kN | 10 mm · 63.2 kg/m (+60%) |
| S600MC | 600 MPa | 650–820 MPa | 208 kNm | 3026 kN | 12 mm · 73.5 kg/m (+86%) |
| S700MC | 700 MPa | 750–950 MPa | 243 kNm | 3530 kN | 16 mm · 93.9 kg/m (+137%) |
In S700MC, this section (39.6 kg/m) carries the elastic bending load of a 16 mm S355J2H wall in the same outer size (93.9 kg/m), which is 137% 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