W 391 x 375,3 IMCA · Weight & Dimensions

IMCA, 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 391 x 375,3 (México) · Doble T 391 x 375,3 (Argentina / LATAM) · UB 391 (UK / Australia)

The W 391 x 375,3 steel profile weighs 375.3 kg/m (252.21 lb/ft), has a depth of 391 mm (15.39 in), flange width 330 mm (12.99 in). Cross-sectional area: 47,543.64 mm². Moment of inertia Ix = 112,432.607 cm⁴, Iy = 34,362.194 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	391 mm	15.39 in
Width (b)	330 mm	12.99 in
Web thickness (tw)	35.4 mm	1.39 in
Flange thickness (tf)	57.2 mm	2.25 in
Weight	375.3 kg/m	252.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	47,543.64 mm²	73.693 in²
Moment of inertia (Ix)	112,432.61 cm⁴	2701.19 in⁴
Moment of inertia (Iy)	34,362.19 cm⁴	825.55 in⁴
Elastic section modulus (Sx)	5,751.03 cm³	350.951 in³
Elastic section modulus (Sy)	2,082.56 cm³	127.086 in³
Plastic section modulus (Zx)	6,977.9 cm³	425.819 in³
Plastic section modulus (Zy)	3,201.2 cm³	195.350 in³
Radius of gyration (rx)	15.38 cm	6.054 in
Radius of gyration (ry)	8.5 cm	3.347 in