I 1251x300x9.5x25.4 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 1251x300x9.5x25.4 (México) · Doble T I 1251x300x9.5x25.4 (Argentina / LATAM) · UB 1251 (UK / Australia)

The I 1251x300x9.5x25.4 steel profile weighs 209.1 kg/m (140.53 lb/ft), has a depth of 1251 mm (49.25 in), flange width 300 mm (11.81 in). Cross-sectional area: 26,641.9 mm². Moment of inertia Ix = 709,248.679 cm⁴, Iy = 11,438.575 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1251 mm	49.25 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	25.4 mm	1.00 in
Weight	209.1 kg/m	140.53 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	26,641.9 mm²	41.295 in²
Moment of inertia (Ix)	709,248.68 cm⁴	17039.70 in⁴
Moment of inertia (Iy)	11,438.58 cm⁴	274.81 in⁴
Elastic section modulus (Sx)	11,338.91 cm³	691.946 in³
Elastic section modulus (Sy)	762.57 cm³	46.535 in³
Plastic section modulus (Zx)	12,760.21 cm³	778.679 in³
Plastic section modulus (Zy)	1,170.08 cm³	71.403 in³
Radius of gyration (rx)	51.6 cm	20.313 in
Radius of gyration (ry)	6.55 cm	2.580 in