I 1200x400x16x25 CISC · Weight & Dimensions

CISC, 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 1200x400x16x25 (México) · Doble T I 1200x400x16x25 (Argentina / LATAM) · UB 1200 (UK / Australia)

The I 1200x400x16x25 steel profile weighs 301.4 kg/m (202.57 lb/ft), has a depth of 1200 mm (47.24 in), flange width 400 mm (15.75 in). Cross-sectional area: 38,400 mm². Moment of inertia Ix = 893,200 cm⁴, Iy = 26,705.92 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1200 mm	47.24 in
Width (b)	400 mm	15.75 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	25 mm	0.98 in
Weight	301.4 kg/m	202.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	38,400 mm²	59.520 in²
Moment of inertia (Ix)	893,200 cm⁴	21459.13 in⁴
Moment of inertia (Iy)	26,705.92 cm⁴	641.61 in⁴
Elastic section modulus (Sx)	14,886.67 cm³	908.444 in³
Elastic section modulus (Sy)	1,335.3 cm³	81.485 in³
Plastic section modulus (Zx)	17,040 cm³	1039.849 in³
Plastic section modulus (Zy)	2,073.6 cm³	126.539 in³
Radius of gyration (rx)	48.23 cm	18.988 in
Radius of gyration (ry)	8.34 cm	3.283 in