400×300×6 mm S235JRH Steel Rectangular Hollow Section
400x300x6mm Steel rectangular hollow section in S235JRH, S275J0H, S355J2H to EN 10219, with a primer-coated surface optimised for paint adhesion. Nominal weight 64.082 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.
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Minimum order: 10 t per size (from 5 t if the size is in production)
Applications & Usage
This heavy-duty structural Steel rectangular hollow section 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 applied finish enhances both durability and appearance. 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 | 400mm × 300mm × 6mm |
| Weight per Meter | 64.082 kg/m |
| Material | Steel |
| Alloy/Grade | S235JRH, S275J0H, S355J2H |
| Standard | EN 10219 |
| Finish | Primer Coated |
| Standard Length | 6m |
| Internal Weld Removal | Available on request |
| 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) | 81.6 cm² |
| Second moment of area(Ix) | 19447 cm⁴ |
| Second moment of area(Iy) | 12557 cm⁴ |
| Radius of gyration(ix) | 15.4 cm |
| Radius of gyration(iy) | 12.4 cm |
| Elastic section modulus(Wel,x) | 972 cm³ |
| Elastic section modulus(Wel,y) | 837 cm³ |
| Plastic section modulus(Wpl,x) | 1142 cm³ |
| Plastic section modulus(Wpl,y) | 941 cm³ |
| Torsional inertia constant(It) | 23651 cm⁴ |
| Torsional modulus constant(Ct) | 1342 cm³ |
| Surface area per metre(As) | 1.38 m²/m |
| Length per tonne | 15.6 m |
Grade strength and capacity
Minimum strength of each grade this size is rolled in, with the indicative capacity of the section.
| Grade | Min. yield | Tensile | Bending Wel·fy | Axial A·fy |
|---|---|---|---|---|
| S235JRH | 235 MPa | 360–510 MPa | 228 kNm | 1918 kN |
| S275J0H | 275 MPa | 410–560 MPa | 267 kNm | 2245 kN |
| S355J2H | 355 MPa | 470–630 MPa | 345 kNm | 2898 kN |
Indicative values from nominal dimensions: Wel × fy and A × fy, without buckling, cross-section class or partial safety factors. Not a design check.
This size is also rolled in high-strength steel: S420MC–S700MC version →
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