I 797x490x15.5x30 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 797x490x15.5x30 (México) · Doble T I 797x490x15.5x30 (Argentina / LATAM) · UB 797 (UK / Australia)

The I 797x490x15.5x30 steel profile weighs 320.5 kg/m (215.35 lb/ft), has a depth of 797 mm (31.38 in), flange width 490 mm (19.29 in). Cross-sectional area: 40,823.5 mm². Moment of inertia Ix = 484,320.341 cm⁴, Iy = 58,847.371 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	797 mm	31.38 in
Width (b)	490 mm	19.29 in
Web thickness (tw)	15.5 mm	0.61 in
Flange thickness (tf)	30 mm	1.18 in
Weight	320.5 kg/m	215.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	40,823.5 mm²	63.276 in²
Moment of inertia (Ix)	484,320.34 cm⁴	11635.80 in⁴
Moment of inertia (Iy)	58,847.37 cm⁴	1413.81 in⁴
Elastic section modulus (Sx)	12,153.58 cm³	741.660 in³
Elastic section modulus (Sy)	2,401.93 cm³	146.576 in³
Plastic section modulus (Zx)	13,379.68 cm³	816.482 in³
Plastic section modulus (Zy)	3,645.77 cm³	222.479 in³
Radius of gyration (rx)	34.44 cm	13.561 in
Radius of gyration (ry)	12.01 cm	4.727 in