I 350x350x10x20 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 350x350x10x20 (México) · Doble T I 350x350x10x20 (Argentina / LATAM) · UB 350 (UK / Australia)

The I 350x350x10x20 steel profile weighs 134.2 kg/m (90.21 lb/ft), has a depth of 350 mm (13.78 in), flange width 350 mm (13.78 in). Cross-sectional area: 17,100 mm². Moment of inertia Ix = 40,644.25 cm⁴, Iy = 14,294.25 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	350 mm	13.78 in
Width (b)	350 mm	13.78 in
Web thickness (tw)	10 mm	0.39 in
Flange thickness (tf)	20 mm	0.79 in
Weight	134.2 kg/m	90.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	17,100 mm²	26.505 in²
Moment of inertia (Ix)	40,644.25 cm⁴	976.48 in⁴
Moment of inertia (Iy)	14,294.25 cm⁴	343.42 in⁴
Elastic section modulus (Sx)	2,322.53 cm³	141.730 in³
Elastic section modulus (Sy)	816.81 cm³	49.845 in³
Plastic section modulus (Zx)	2,550.25 cm³	155.626 in³
Plastic section modulus (Zy)	1,232.75 cm³	75.227 in³
Radius of gyration (rx)	15.42 cm	6.070 in
Radius of gyration (ry)	9.14 cm	3.600 in