I 838x406.4x9.5x22.2 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 838x406.4x9.5x22.2 (México) · Doble T I 838x406.4x9.5x22.2 (Argentina / LATAM) · UB 838 (UK / Australia)

The I 838x406.4x9.5x22.2 steel profile weighs 200.8 kg/m (134.96 lb/ft), has a depth of 838 mm (32.99 in), flange width 406.4 mm (16.00 in). Cross-sectional area: 25,583.36 mm². Moment of inertia Ix = 339,865.485 cm⁴, Iy = 24,840.593 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)	22.2 mm	0.87 in
Weight	200.8 kg/m	134.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,583.36 mm²	39.654 in²
Moment of inertia (Ix)	339,865.49 cm⁴	8165.27 in⁴
Moment of inertia (Iy)	24,840.59 cm⁴	596.80 in⁴
Elastic section modulus (Sx)	8,111.35 cm³	494.987 in³
Elastic section modulus (Sy)	1,222.47 cm³	74.600 in³
Plastic section modulus (Zx)	8,855.99 cm³	540.428 in³
Plastic section modulus (Zy)	1,851.19 cm³	112.967 in³
Radius of gyration (rx)	36.45 cm	14.350 in
Radius of gyration (ry)	9.85 cm	3.879 in