I 838x406.4x9.5x15.9 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 838x406.4x9.5x15.9 (México) · Doble T I 838x406.4x9.5x15.9 (Argentina / LATAM) · UB 838 (UK / Australia)

The I 838x406.4x9.5x15.9 steel profile weighs 161.6 kg/m (108.58 lb/ft), has a depth of 838 mm (32.99 in), flange width 406.4 mm (16.00 in). Cross-sectional area: 20,582.42 mm². Moment of inertia Ix = 259,868.794 cm⁴, Iy = 17,792.935 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	838 mm	32.99 in
Width (b)	406.4 mm	16.00 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	15.9 mm	0.63 in
Weight	161.6 kg/m	108.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	20,582.42 mm²	31.903 in²
Moment of inertia (Ix)	259,868.79 cm⁴	6243.35 in⁴
Moment of inertia (Iy)	17,792.93 cm⁴	427.48 in⁴
Elastic section modulus (Sx)	6,202.12 cm³	378.478 in³
Elastic section modulus (Sy)	875.64 cm³	53.435 in³
Plastic section modulus (Zx)	6,855.86 cm³	418.372 in³
Plastic section modulus (Zy)	1,331.22 cm³	81.236 in³
Radius of gyration (rx)	35.53 cm	13.989 in
Radius of gyration (ry)	9.3 cm	3.661 in