American W16x36 W16x40 W16x45 W Shapes Section

The W series model of the American standard H-beam begins with "W", which stands for wide flange steel. The first number (such as W16) indicates the section height (in inches), that is, the total height of the steel is about 16 inches (about 406.4mm).

‌The second number (such as x36) indicates the weight per unit length (in pounds per foot), that is, the weight of the W16x36 h beam structure is 36 pounds per foot (about 53.6kg/m).

‌Material grade‌: mainly A36, A572, A992, etc., with high yield strength (such as the yield strength of A992 ≥50ksi) and tensile strength, suitable for heavy-duty structures.

‌Performance characteristics‌: large section inertia moment and modulus, high bending stiffness, excellent seismic performance, and can absorb energy through plastic deformation.

Heavy structures: such as high-rise building frames, bridge beams, industrial plants and other scenes that require high load-bearing capacity.
Seismic design: Due to the good cross-sectional ductility, it is suitable for building structures in earthquake-prone areas.
Long span support: such as large warehouse roof trusses, tunnel support, etc.

Chinese standard: The national standard model close to W16x45 h section steel is H-shaped steel H200×100×7×11 h beam, but the American standard is heavier and more suitable for heavy load requirements.

Design difference: The American standard emphasizes high strength and lightweight (optimized cross-sectional distribution), while the national standard pays more attention to economy and versatility.