W18x258 American W Shapes | Section Sizes
The "W18" in the model number indicates that the height of the steel section is 18 inches (about 457.2mm), and "258" indicates that the weight per foot is 258 pounds (about 384kg/m).
W18x258 steel beam section dimensions
Height (H): 509mm
Flange width (B): 289mm
Web thickness (tw): 22.6mm
Flange thickness (tf): 40.4mm
Theoretical weight: about 384kg/m.
W18x258 h shaped beam section characteristics
Moment of inertia (Ix): about 3310cm⁴
Section modulus (Sx): about 428.2cm³
Radius of gyration (r): about 199mm5.
W18x258 h beam section materials and production standards
Main materials: A572GR50 (high-strength low-alloy steel, yield strength ≥345MPa) and A992 (suitable for building structures, with better welding performance).
Production standards: in accordance with the US ASTM standards, hot-rolled manufacturing process to ensure mechanical properties and dimensional accuracy.
W18x258 steel h profile Application areas
Building structures: heavy frames for high-rise buildings, large-span support beams and load-bearing columns for industrial plants.
Bridge engineering: suitable for the main beams and cross beams of railway bridges and highway bridges, carrying heavy traffic loads.
Machinery manufacturing: as a skeleton material for heavy equipment (such as port cranes and pressure vessels), it provides high bending strength.
Special scenarios: used in offshore platforms, power towers and other environments that require weather resistance and corrosion resistance, and require galvanizing or spraying.
GNEE Steel is an H-beam manufacturer, H-beam supplier and H-beam exporter. We are a company with 18 years of production experience and are committed to providing H-beams of various materials.
As an ISO-certified company, we produce a large number of H shaped steel products and have a large number of international customers. The H beam structure we provide to customers can be customized according to the size required and is used in many industries such as construction, bridges, marine, and manufacturing.
GNEE supports multi-specification and multi-brand H-beam customization. If you have customized requirements for profile steel, angle steel, and channel steel, please contact us!
