I 290x300x8x15.5 IAS · Weight & Dimensions

IAS, 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.

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Also known as: I 290x300x8x15.5 (México) · Doble T I 290x300x8x15.5 (Argentina / LATAM) · UB 290 (UK / Australia)

The I 290x300x8x15.5 steel profile weighs 88.7 kg/m (59.61 lb/ft), has a depth of 290 mm (11.42 in), flange width 300 mm (11.81 in). Cross-sectional area: 11,372 mm². Moment of inertia Ix = 18,695.818 cm⁴, Iy = 6,976.105 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	290 mm	11.42 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	15.5 mm	0.61 in
Weight	88.7 kg/m	59.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,372 mm²	17.627 in²
Moment of inertia (Ix)	18,695.82 cm⁴	449.17 in⁴
Moment of inertia (Iy)	6,976.11 cm⁴	167.60 in⁴
Elastic section modulus (Sx)	1,289.37 cm³	78.682 in³
Elastic section modulus (Sy)	465.07 cm³	28.381 in³
Plastic section modulus (Zx)	1,410.59 cm³	86.080 in³
Plastic section modulus (Zy)	701.64 cm³	42.817 in³
Radius of gyration (rx)	12.82 cm	5.048 in
Radius of gyration (ry)	7.83 cm	3.084 in