I 350x300x8x25 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 350x300x8x25 (México) · Doble T I 350x300x8x25 (Argentina / LATAM) · UB 350 (UK / Australia)

The I 350x300x8x25 steel profile weighs 136.6 kg/m (91.79 lb/ft), has a depth of 350 mm (13.78 in), flange width 300 mm (11.81 in). Cross-sectional area: 17,400 mm². Moment of inertia Ix = 41,487.5 cm⁴, Iy = 11,251.28 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	350 mm	13.78 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	25 mm	0.98 in
Weight	136.6 kg/m	91.79 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	17,400 mm²	26.970 in²
Moment of inertia (Ix)	41,487.5 cm⁴	996.74 in⁴
Moment of inertia (Iy)	11,251.28 cm⁴	270.31 in⁴
Elastic section modulus (Sx)	2,370.71 cm³	144.670 in³
Elastic section modulus (Sy)	750.09 cm³	45.773 in³
Plastic section modulus (Zx)	2,617.5 cm³	159.730 in³
Plastic section modulus (Zy)	1,129.8 cm³	68.945 in³
Radius of gyration (rx)	15.44 cm	6.079 in
Radius of gyration (ry)	8.04 cm	3.166 in