I 838x304.8x9.5x9.5 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 838x304.8x9.5x9.5 (México) · Doble T I 838x304.8x9.5x9.5 (Argentina / LATAM) · UB 838 (UK / Australia)

The I 838x304.8x9.5x9.5 steel profile weighs 106.6 kg/m (71.61 lb/ft), has a depth of 838 mm (32.99 in), flange width 304.8 mm (12.00 in). Cross-sectional area: 13,571.7 mm². Moment of inertia Ix = 142,873.587 cm⁴, Iy = 4,489.352 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	838 mm	32.99 in
Width (b)	304.8 mm	12.00 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	9.5 mm	0.37 in
Weight	106.6 kg/m	71.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,571.7 mm²	21.036 in²
Moment of inertia (Ix)	142,873.59 cm⁴	3432.54 in⁴
Moment of inertia (Iy)	4,489.35 cm⁴	107.86 in⁴
Elastic section modulus (Sx)	3,409.87 cm³	208.084 in³
Elastic section modulus (Sy)	294.58 cm³	17.976 in³
Plastic section modulus (Zx)	3,992.06 cm³	243.612 in³
Plastic section modulus (Zy)	459.77 cm³	28.057 in³
Radius of gyration (rx)	32.45 cm	12.774 in
Radius of gyration (ry)	5.75 cm	2.264 in