The is a fundamental structural steel section, commonly known as an "H-beam" or RSJ (Rolled Steel Joist). The designation specifically refers to its nominal dimensions and weight, with 46.1 kg/m being its standard weight per linear metre. Key Specifications and Properties
Slight variations may occur depending on the specific steel standard (e.g., BS EN 10210 vs. BS 4) and the steel manufacturer, but the nominal weight remains 46 kg/m. 203x203x46 uc weight
Its shallow depth makes it an excellent load-bearing member in lofts, basements, or other areas with limited height clearance. The is a fundamental structural steel section, commonly
| Property | Value | |----------|-------| | Mass per metre | 46 kg/m | | Depth (h) | 203.2 mm | | Width (b) | 203.6 mm | | Web thickness (tw) | 7.2 mm | | Flange thickness (tf) | 11.0 mm | | Root radius (r) | 10.2 mm | | Cross-sectional area | 58.7 cm² | | Second moment of area (Ixx) | 4,570 cm⁴ | | Second moment of area (Iyy) | 1,530 cm⁴ | | Elastic modulus (Zxx) | 450 cm³ | | Elastic modulus (Zyy) | 150 cm³ | | Radius of gyration (rx) | 8.82 cm | | Radius of gyration (ry) | 5.10 cm | | Plastic modulus (Sxx) | 510 cm³ | | Plastic modulus (Syy) | 230 cm³ | BS 4) and the steel manufacturer, but the