I 790x300x20x25 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 790x300x20x25 (México) · Doble T I 790x300x20x25 (Argentina / LATAM) · UB 790 (UK / Australia)

The I 790x300x20x25 steel profile weighs 233.9 kg/m (157.20 lb/ft), has a depth of 790 mm (31.10 in), flange width 300 mm (11.81 in). Cross-sectional area: 29,800 mm². Moment of inertia Ix = 287,074.833 cm⁴, Iy = 11,299.333 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	790 mm	31.10 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	20 mm	0.79 in
Flange thickness (tf)	25 mm	0.98 in
Weight	233.9 kg/m	157.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	29,800 mm²	46.190 in²
Moment of inertia (Ix)	287,074.83 cm⁴	6896.97 in⁴
Moment of inertia (Iy)	11,299.33 cm⁴	271.47 in⁴
Elastic section modulus (Sx)	7,267.72 cm³	443.505 in³
Elastic section modulus (Sy)	753.29 cm³	45.969 in³
Plastic section modulus (Zx)	8,475.5 cm³	517.209 in³
Plastic section modulus (Zy)	1,199 cm³	73.168 in³
Radius of gyration (rx)	31.04 cm	12.220 in
Radius of gyration (ry)	6.16 cm	2.424 in