500×300×18 mm S235JRH Steel Rectangular Hollow Section
500x300x18mm Steel rectangular hollow section in S235JRH, S275J0H, S355J2H to EN 10219, with a galvanized coating that protects against corrosion in harsh environments. Nominal weight 204.99 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: 5 pieces
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 18mm 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 | 500mm × 300mm × 18mm |
| Weight per Meter | 204.99 kg/m |
| Material | Steel |
| Alloy/Grade | S235JRH, S275J0H |
| 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) | 261 cm² |
| Second moment of area(Ix) | 84114 cm⁴ |
| Second moment of area(Iy) | 38281 cm⁴ |
| Radius of gyration(ix) | 17.9 cm |
| Radius of gyration(iy) | 12.1 cm |
| Elastic section modulus(Wel,x) | 3365 cm³ |
| Elastic section modulus(Wel,y) | 2552 cm³ |
| Plastic section modulus(Wpl,x) | 4194 cm³ |
| Plastic section modulus(Wpl,y) | 2958 cm³ |
| Torsional inertia constant(It) | 89644 cm⁴ |
| Torsional modulus constant(Ct) | 4416 cm³ |
| Surface area per metre(As) | 1.51 m²/m |
| Length per tonne | 4.88 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 | 225 MPa | 360–510 MPa | 757 kNm | 5876 kN |
| S275J0H | 265 MPa | 410–560 MPa | 892 kNm | 6920 kN |
Ordered in S355J2H, the S235JRH bending capacity of this size is reached with a 12 mm wall in the same outer size (141 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.
Nearest inch size to ASTM A500: HSS 20 × 12 × ¾ →
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