I 426x366x15.5x30 IAS · Weight & Dimensions

IAS, welded 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: I 426x366x15.5x30 (México) · Doble T I 426x366x15.5x30 (Argentina / LATAM) · UB 426 (UK / Australia)

The I 426x366x15.5x30 steel profile weighs 216.9 kg/m (145.77 lb/ft), has a depth of 426 mm (16.77 in), flange width 366 mm (14.41 in). Cross-sectional area: 27,633 mm². Moment of inertia Ix = 92,589.454 cm⁴, Iy = 24,525.306 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	426 mm	16.77 in
Width (b)	366 mm	14.41 in
Web thickness (tw)	15.5 mm	0.61 in
Flange thickness (tf)	30 mm	1.18 in
Weight	216.9 kg/m	145.77 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	27,633 mm²	42.831 in²
Moment of inertia (Ix)	92,589.45 cm⁴	2224.46 in⁴
Moment of inertia (Iy)	24,525.31 cm⁴	589.22 in⁴
Elastic section modulus (Sx)	4,346.92 cm³	265.267 in³
Elastic section modulus (Sy)	1,340.18 cm³	81.783 in³
Plastic section modulus (Zx)	4,867.16 cm³	297.014 in³
Plastic section modulus (Zy)	2,031.32 cm³	123.959 in³
Radius of gyration (rx)	18.3 cm	7.207 in
Radius of gyration (ry)	9.42 cm	3.709 in