I 800x300x20x30 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 800x300x20x30 (México) · Doble T I 800x300x20x30 (Argentina / LATAM) · UB 800 (UK / Australia)

The I 800x300x20x30 steel profile weighs 257.5 kg/m (173.03 lb/ft), has a depth of 800 mm (31.50 in), flange width 300 mm (11.81 in). Cross-sectional area: 32,800 mm². Moment of inertia Ix = 334,477.333 cm⁴, Iy = 13,549.333 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	800 mm	31.50 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	20 mm	0.79 in
Flange thickness (tf)	30 mm	1.18 in
Weight	257.5 kg/m	173.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	32,800 mm²	50.840 in²
Moment of inertia (Ix)	334,477.33 cm⁴	8035.82 in⁴
Moment of inertia (Iy)	13,549.33 cm⁴	325.52 in⁴
Elastic section modulus (Sx)	8,361.93 cm³	510.279 in³
Elastic section modulus (Sy)	903.29 cm³	55.122 in³
Plastic section modulus (Zx)	9,668 cm³	589.980 in³
Plastic section modulus (Zy)	1,424 cm³	86.898 in³
Radius of gyration (rx)	31.93 cm	12.572 in
Radius of gyration (ry)	6.43 cm	2.530 in