I 300x200x4x8 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 300x200x4x8 (México) · Doble T I 300x200x4x8 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x200x4x8 steel profile weighs 34.1 kg/m (22.90 lb/ft), has a depth of 300 mm (11.81 in), flange width 200 mm (7.87 in). Cross-sectional area: 4,336 mm². Moment of inertia Ix = 7,586.37 cm⁴, Iy = 1,066.818 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	200 mm	7.87 in
Web thickness (tw)	4 mm	0.16 in
Flange thickness (tf)	8 mm	0.31 in
Weight	34.1 kg/m	22.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,336 mm²	6.721 in²
Moment of inertia (Ix)	7,586.37 cm⁴	182.26 in⁴
Moment of inertia (Iy)	1,066.82 cm⁴	25.63 in⁴
Elastic section modulus (Sx)	505.76 cm³	30.863 in³
Elastic section modulus (Sy)	106.68 cm³	6.510 in³
Plastic section modulus (Zx)	547.86 cm³	33.432 in³
Plastic section modulus (Zy)	161.14 cm³	9.833 in³
Radius of gyration (rx)	13.23 cm	5.208 in
Radius of gyration (ry)	4.96 cm	1.953 in