I 838x406.4x9.5x12.7 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 838x406.4x9.5x12.7 (México) · Doble T I 838x406.4x9.5x12.7 (Argentina / LATAM) · UB 838 (UK / Australia)

The I 838x406.4x9.5x12.7 steel profile weighs 141.7 kg/m (95.19 lb/ft), has a depth of 838 mm (32.99 in), flange width 406.4 mm (16.00 in). Cross-sectional area: 18,042.26 mm². Moment of inertia Ix = 218,265.305 cm⁴, Iy = 14,213.172 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)	12.7 mm	0.50 in
Weight	141.7 kg/m	95.19 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	18,042.26 mm²	27.966 in²
Moment of inertia (Ix)	218,265.31 cm⁴	5243.82 in⁴
Moment of inertia (Iy)	14,213.17 cm⁴	341.47 in⁴
Elastic section modulus (Sx)	5,209.2 cm³	317.886 in³
Elastic section modulus (Sy)	699.47 cm³	42.684 in³
Plastic section modulus (Zx)	5,827.86 cm³	355.639 in³
Plastic section modulus (Zy)	1,067.11 cm³	65.119 in³
Radius of gyration (rx)	34.78 cm	13.693 in
Radius of gyration (ry)	8.88 cm	3.494 in