100×80×4.5 mm S235JRH Steel Rectangular Hollow Section
100x80x4.5mm Steel rectangular hollow section in S235JRH, S275J0H, S355J2H to EN 10219, with a galvanized coating that protects against corrosion in harsh environments. Nominal weight 11.672 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 rectangular hollow section is commonly specified for framework, support structures, machinery bases, and industrial equipment. The 4.5mm wall thickness provides superior load-bearing capacity while maintaining workability. The galvanized coating provides exceptional corrosion protection for outdoor and harsh environments. 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 | 100mm × 80mm × 4.5mm |
| Weight per Meter | 11.672 kg/m |
| Material | Steel |
| Alloy/Grade | S235JRH, S275J0H, S355J2H |
| Standard | EN 10219 |
| Finish | Galvanized |
| 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) | 14.9 cm² |
| Second moment of area(Ix) | 208 cm⁴ |
| Second moment of area(Iy) | 147 cm⁴ |
| Radius of gyration(ix) | 3.74 cm |
| Radius of gyration(iy) | 3.15 cm |
| Elastic section modulus(Wel,x) | 41.6 cm³ |
| Elastic section modulus(Wel,y) | 36.8 cm³ |
| Plastic section modulus(Wpl,x) | 50.4 cm³ |
| Plastic section modulus(Wpl,y) | 43.3 cm³ |
| Torsional inertia constant(It) | 281 cm⁴ |
| Torsional modulus constant(Ct) | 58.7 cm³ |
| Surface area per metre(As) | 0.345 m²/m |
| Length per tonne | 85.7 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 | 9.79 kNm | 349 kN |
| S275J0H | 275 MPa | 410–560 MPa | 11.5 kNm | 409 kN |
| S355J2H | 355 MPa | 470–630 MPa | 14.8 kNm | 528 kN |
Ordered in S355J2H, the S235JRH bending capacity of this size is reached with a 3 mm wall in the same outer size (8.01 kg/m, 31% 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