I 1270x406.4x11.1x19.1 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 1270x406.4x11.1x19.1 (México) · Doble T I 1270x406.4x11.1x19.1 (Argentina / LATAM) · UB 1270 (UK / Australia)

The I 1270x406.4x11.1x19.1 steel profile weighs 229.2 kg/m (154.02 lb/ft), has a depth of 1270 mm (50.00 in), flange width 406.4 mm (16.00 in). Cross-sectional area: 29,197.46 mm². Moment of inertia Ix = 780,232.76 cm⁴, Iy = 21,381.022 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1270 mm	50.00 in
Width (b)	406.4 mm	16.00 in
Web thickness (tw)	11.1 mm	0.44 in
Flange thickness (tf)	19.1 mm	0.75 in
Weight	229.2 kg/m	154.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	29,197.46 mm²	45.256 in²
Moment of inertia (Ix)	780,232.76 cm⁴	18745.09 in⁴
Moment of inertia (Iy)	21,381.02 cm⁴	513.68 in⁴
Elastic section modulus (Sx)	12,287.13 cm³	749.810 in³
Elastic section modulus (Sy)	1,052.22 cm³	64.210 in³
Plastic section modulus (Zx)	13,920.38 cm³	849.477 in³
Plastic section modulus (Zy)	1,615.23 cm³	98.568 in³
Radius of gyration (rx)	51.69 cm	20.352 in
Radius of gyration (ry)	8.56 cm	3.369 in