300×150×12.5 mm S235JRH Steel Rectangular Hollow Section
300x150x12.5mm Steel rectangular hollow section in S235JRH, S275J0H, S355J2H to EN 10219, with a galvanized coating that protects against corrosion in harsh environments. Nominal weight 78.142 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 extra heavy-duty industrial Steel rectangular hollow section is commonly specified for heavy structural supports, load-bearing frames, and demanding industrial applications. The 12.5mm wall thickness provides exceptional structural integrity 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 | 300mm × 150mm × 12.5mm |
| Weight per Meter | 78.142 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) | 99.5 cm² |
| Second moment of area(Ix) | 10594 cm⁴ |
| Second moment of area(Iy) | 3595 cm⁴ |
| Radius of gyration(ix) | 10.3 cm |
| Radius of gyration(iy) | 6.01 cm |
| Elastic section modulus(Wel,x) | 706 cm³ |
| Elastic section modulus(Wel,y) | 479 cm³ |
| Plastic section modulus(Wpl,x) | 912 cm³ |
| Plastic section modulus(Wpl,y) | 563 cm³ |
| Torsional inertia constant(It) | 9452 cm⁴ |
| Torsional modulus constant(Ct) | 862 cm³ |
| Surface area per metre(As) | 0.836 m²/m |
| Length per tonne | 12.8 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 | 166 kNm | 2339 kN |
| S275J0H | 275 MPa | 410–560 MPa | 194 kNm | 2737 kN |
| S355J2H | 355 MPa | 470–630 MPa | 251 kNm | 3534 kN |
Ordered in S355J2H, the S235JRH bending capacity of this size is reached with a 8 mm wall in the same outer size (52.8 kg/m, 32% lighter).
Indicative values from nominal dimensions: Wel × fy and A × fy, without buckling, cross-section class or partial safety factors. Not a design check.
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