I 533.4x304.8x7.9x15.9 AHMSA · Weight & Dimensions

AHMSA, 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 533.4x304.8x7.9x15.9 (México) · Doble T I 533.4x304.8x7.9x15.9 (Argentina / LATAM) · UB 533.4 (UK / Australia)

The I 533.4x304.8x7.9x15.9 steel profile weighs 107.2 kg/m (72.03 lb/ft), has a depth of 533.4 mm (21.00 in), flange width 304.8 mm (12.00 in). Cross-sectional area: 13,655.28 mm². Moment of inertia Ix = 73,222.579 cm⁴, Iy = 7,506.025 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	533.4 mm	21.00 in
Width (b)	304.8 mm	12.00 in
Web thickness (tw)	7.9 mm	0.31 in
Flange thickness (tf)	15.9 mm	0.63 in
Weight	107.2 kg/m	72.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,655.28 mm²	21.166 in²
Moment of inertia (Ix)	73,222.58 cm⁴	1759.17 in⁴
Moment of inertia (Iy)	7,506.03 cm⁴	180.33 in⁴
Elastic section modulus (Sx)	2,745.5 cm³	167.542 in³
Elastic section modulus (Sy)	492.52 cm³	30.056 in³
Plastic section modulus (Zx)	3,004.89 cm³	183.370 in³
Plastic section modulus (Zy)	746.41 cm³	45.549 in³
Radius of gyration (rx)	23.16 cm	9.117 in
Radius of gyration (ry)	7.41 cm	2.919 in