I 350x300x6x12 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 350x300x6x12 (México) · Doble T I 350x300x6x12 (Argentina / LATAM) · UB 350 (UK / Australia)

The I 350x300x6x12 steel profile weighs 71.9 kg/m (48.32 lb/ft), has a depth of 350 mm (13.78 in), flange width 300 mm (11.81 in). Cross-sectional area: 9,156 mm². Moment of inertia Ix = 22,304.859 cm⁴, Iy = 5,400.587 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)	6 mm	0.24 in
Flange thickness (tf)	12 mm	0.47 in
Weight	71.9 kg/m	48.32 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,156 mm²	14.192 in²
Moment of inertia (Ix)	22,304.86 cm⁴	535.87 in⁴
Moment of inertia (Iy)	5,400.59 cm⁴	129.75 in⁴
Elastic section modulus (Sx)	1,274.56 cm³	77.779 in³
Elastic section modulus (Sy)	360.04 cm³	21.971 in³
Plastic section modulus (Zx)	1,376.21 cm³	83.982 in³
Plastic section modulus (Zy)	542.93 cm³	33.132 in³
Radius of gyration (rx)	15.61 cm	6.145 in
Radius of gyration (ry)	7.68 cm	3.024 in