W 400 x 196,8 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 400 x 196,8 (México) · Doble T 400 x 196,8 (Argentina / LATAM) · UB 400 (UK / Australia)

The W 400 x 196,8 steel profile weighs 196.8 kg/m (132.25 lb/ft), has a depth of 400 mm (15.75 in), flange width 408 mm (16.06 in). Cross-sectional area: 25,069.469 mm². Moment of inertia Ix = 70,888.078 cm⁴, Iy = 23,809.266 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	408 mm	16.06 in
Web thickness (tw)	21 mm	0.83 in
Flange thickness (tf)	21 mm	0.83 in
Fillet radius (r)	22 mm	0.87 in
Weight	196.8 kg/m	132.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,069.47 mm²	38.858 in²
Moment of inertia (Ix)	70,888.08 cm⁴	1703.09 in⁴
Moment of inertia (Iy)	23,809.27 cm⁴	572.02 in⁴
Elastic section modulus (Sx)	3,544.4 cm³	216.294 in³
Elastic section modulus (Sy)	1,167.12 cm³	71.222 in³
Plastic section modulus (Zx)	3,992.46 cm³	243.636 in³
Plastic section modulus (Zy)	1,793.75 cm³	109.462 in³
Radius of gyration (rx)	16.82 cm	6.620 in
Radius of gyration (ry)	9.75 cm	3.837 in