W21x166 12m Steel h Beam Steel Weight
W21x166 h beam profile definition
W21×166 h shaped steel is a US standard wide flange H-shaped steel, made of ASTM A572 Gr50 or A992 structural steel. The number represents a nominal height of 21 inches (533 mm) and a weight of 166 pounds per foot (247 kg/m).
W21x166 h section beam cross-sectional dimensions (typical reference values)
Height (h): 21 inches (533.4 mm)
Flange width (b): 12.5 inches (317.5 mm)
Web thickness (tw): ~1.25 inches (31.75 mm)
Flange thickness (tf): ~2.0 inches (50.8 mm)
Theoretical weight: 166 lb/ft ≈ 247 kg/m
W21x166 h type steel beam material standard
A572 Gr50 structural h beam material: minimum yield strength 345 MPa, tensile strength 450 MPa, suitable for high-load structures.
A992 h beam material: optimized welding performance, yield strength ≥345 MPa, tensile strength 450-620 MPa.
W21x166 steel beam h Core use
Super high-rise buildings: used for core tube shear wall connectors (similar projects in Shanghai Center use up to 800 tons).
Heavy industrial plant: truss main beam with a span of ≥30 meters, replacing traditional welded composite beams (saving 40% of construction time).
Energy infrastructure: offshore wind power tower transition section (a single 10MW unit requires about 65 tons of W21×166).
