W 920 x 387,0 CISC · Weight & Dimensions

CISC, hot-rolled sections · Wide Flange (I-beam)

Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.

Also known as: IPR 920 x 387,0 (México) · Doble T 920 x 387,0 (Argentina / LATAM) · UB 921 (UK / Australia)

The W 920 x 387,0 steel profile weighs 387.0 kg/m (260.06 lb/ft), has a depth of 921 mm (36.26 in), flange width 420 mm (16.54 in). Cross-sectional area: 49,296.583 mm². Moment of inertia Ix = 718,339.323 cm⁴, Iy = 45,275.63 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	921 mm	36.26 in
Width (b)	420 mm	16.54 in
Web thickness (tw)	21.3 mm	0.84 in
Flange thickness (tf)	36.6 mm	1.44 in
Fillet radius (r)	24 mm	0.94 in
Weight	387.0 kg/m	260.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	49,296.58 mm²	76.410 in²
Moment of inertia (Ix)	718,339.32 cm⁴	17258.10 in⁴
Moment of inertia (Iy)	45,275.63 cm⁴	1087.75 in⁴
Elastic section modulus (Sx)	15,599.12 cm³	951.920 in³
Elastic section modulus (Sy)	2,155.98 cm³	131.567 in³
Plastic section modulus (Zx)	17,629.36 cm³	1075.814 in³
Plastic section modulus (Zy)	3,332.2 cm³	203.344 in³
Radius of gyration (rx)	38.17 cm	15.029 in
Radius of gyration (ry)	9.58 cm	3.773 in