W 388 x 140,1 KS · Weight & Dimensions

KS, 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 388 x 140,1 (México) · Doble T 388 x 140,1 (Argentina / LATAM) · UB 388 (UK / Australia)

The W 388 x 140,1 steel profile weighs 140.1 kg/m (94.16 lb/ft), has a depth of 388 mm (15.28 in), flange width 402 mm (15.83 in). Cross-sectional area: 17,845.469 mm². Moment of inertia Ix = 48,965.169 cm⁴, Iy = 16,258.381 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	388 mm	15.28 in
Width (b)	402 mm	15.83 in
Web thickness (tw)	15 mm	0.59 in
Flange thickness (tf)	15 mm	0.59 in
Fillet radius (r)	22 mm	0.87 in
Weight	140.1 kg/m	94.16 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	17,845.47 mm²	27.660 in²
Moment of inertia (Ix)	48,965.17 cm⁴	1176.39 in⁴
Moment of inertia (Iy)	16,258.38 cm⁴	390.61 in⁴
Elastic section modulus (Sx)	2,523.98 cm³	154.023 in³
Elastic section modulus (Sy)	808.87 cm³	49.361 in³
Plastic section modulus (Zx)	2,802.13 cm³	170.997 in³
Plastic section modulus (Zy)	1,237.33 cm³	75.507 in³
Radius of gyration (rx)	16.56 cm	6.521 in
Radius of gyration (ry)	9.54 cm	3.758 in