W 798 x 177,9 GOST · Weight & Dimensions

GOST, 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 798 x 177,9 (México) · Doble T 798 x 177,9 (Argentina / LATAM) · UB 798 (UK / Australia)

The W 798 x 177,9 steel profile weighs 177.9 kg/m (119.54 lb/ft), has a depth of 798 mm (31.42 in), flange width 280 mm (11.02 in). Cross-sectional area: 22,392.283 mm². Moment of inertia Ix = 228,410.599 cm⁴, Iy = 7,345.564 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	798 mm	31.42 in
Width (b)	280 mm	11.02 in
Web thickness (tw)	14 mm	0.55 in
Flange thickness (tf)	20 mm	0.79 in
Fillet radius (r)	26 mm	1.02 in
Weight	177.9 kg/m	119.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	22,392.28 mm²	34.708 in²
Moment of inertia (Ix)	228,410.6 cm⁴	5487.56 in⁴
Moment of inertia (Iy)	7,345.56 cm⁴	176.48 in⁴
Elastic section modulus (Sx)	5,724.58 cm³	349.337 in³
Elastic section modulus (Sy)	524.68 cm³	32.018 in³
Plastic section modulus (Zx)	6,584.33 cm³	401.802 in³
Plastic section modulus (Zy)	828.57 cm³	50.563 in³
Radius of gyration (rx)	31.94 cm	12.574 in
Radius of gyration (ry)	5.73 cm	2.255 in