I 900x400x12x32 Cintac · Weight & Dimensions

Cintac, 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 900x400x12x32 (México) · Doble T I 900x400x12x32 (Argentina / LATAM) · UB 900 (UK / Australia)

The I 900x400x12x32 steel profile weighs 279.7 kg/m (187.96 lb/ft), has a depth of 900 mm (35.43 in), flange width 400 mm (15.75 in). Cross-sectional area: 35,632 mm². Moment of inertia Ix = 540,837.519 cm⁴, Iy = 34,145.372 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	900 mm	35.43 in
Width (b)	400 mm	15.75 in
Web thickness (tw)	12 mm	0.47 in
Flange thickness (tf)	32 mm	1.26 in
Weight	279.7 kg/m	187.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	35,632 mm²	55.230 in²
Moment of inertia (Ix)	540,837.52 cm⁴	12993.62 in⁴
Moment of inertia (Iy)	34,145.37 cm⁴	820.34 in⁴
Elastic section modulus (Sx)	12,018.61 cm³	733.424 in³
Elastic section modulus (Sy)	1,707.27 cm³	104.184 in³
Plastic section modulus (Zx)	13,207.09 cm³	805.949 in³
Plastic section modulus (Zy)	2,590.1 cm³	158.058 in³
Radius of gyration (rx)	38.96 cm	15.338 in
Radius of gyration (ry)	9.79 cm	3.854 in