320×320×10 mm S235JRH Steel Square Hollow Section
320x320x10mm cold-formed ERW square hollow section to EN 10219, rolled in S235JRH, S275J0H or S355J2H depending on size, supplied with a galvanized coating that protects against corrosion in harsh environments.
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
Equal sides carry load about both axes, so this square hollow section is specified for columns, posts, gates, and frames, and the closed section resists torsion better than an open profile of similar weight. Supplied black, with a red-oxide shop primer, or hot-dip galvanized; the internal weld bead can be removed on request on most sizes.
Technical Specifications
| Specification | Value |
|---|---|
| Dimensions | 320mm × 320mm × 10mm |
| Weight per Meter | 94.645 kg/m |
| Material | Steel |
| Alloy/Grade | S235JRH, S275J0H, S355J2H |
| Standard | EN 10219 |
| Finish | Galvanized |
| 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) | 121 cm² |
| Second moment of area(I) | 19016 cm⁴ |
| Radius of gyration(i) | 12.6 cm |
| Elastic section modulus(Wel) | 1189 cm³ |
| Plastic section modulus(Wpl) | 1387 cm³ |
| Torsional inertia constant(It) | 30461 cm⁴ |
| Torsional modulus constant(Ct) | 1804 cm³ |
| Surface area per metre(As) | 1.24 m²/m |
| Length per tonne | 10.6 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 | 279 kNm | 2833 kN |
| S275J0H | 275 MPa | 410–560 MPa | 327 kNm | 3316 kN |
| S355J2H | 355 MPa | 470–630 MPa | 422 kNm | 4280 kN |
Ordered in S355J2H, the S235JRH bending capacity of this size is reached with a 6.3 mm wall in the same outer size (61.0 kg/m, 36% lighter).
Indicative values from nominal dimensions: Wel × fy and A × fy, without buckling, cross-section class or partial safety factors. Not a design check.
Similar Sizes
Explore alternative dimensions that might suit your needs