I 1251x360x12.7x25.4 IMCA · Weight & Dimensions

IMCA, 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 1251x360x12.7x25.4 (México) · Doble T I 1251x360x12.7x25.4 (Argentina / LATAM) · UB 1251 (UK / Australia)

The I 1251x360x12.7x25.4 steel profile weighs 263.2 kg/m (176.88 lb/ft), has a depth of 1251 mm (49.25 in), flange width 360 mm (14.17 in). Cross-sectional area: 33,530.54 mm². Moment of inertia Ix = 869,827.776 cm⁴, Iy = 19,771.527 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1251 mm	49.25 in
Width (b)	360 mm	14.17 in
Web thickness (tw)	12.7 mm	0.50 in
Flange thickness (tf)	25.4 mm	1.00 in
Weight	263.2 kg/m	176.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	33,530.54 mm²	51.972 in²
Moment of inertia (Ix)	869,827.78 cm⁴	20897.61 in⁴
Moment of inertia (Iy)	19,771.53 cm⁴	475.01 in⁴
Elastic section modulus (Sx)	13,906.12 cm³	848.607 in³
Elastic section modulus (Sy)	1,098.42 cm³	67.030 in³
Plastic section modulus (Zx)	15,780.41 cm³	962.984 in³
Plastic section modulus (Zy)	1,694.32 cm³	103.394 in³
Radius of gyration (rx)	50.93 cm	20.052 in
Radius of gyration (ry)	7.68 cm	3.023 in