I 1135x490x20x40 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.

Also known as: I 1135x490x20x40 (México) · Doble T I 1135x490x20x40 (Argentina / LATAM) · UB 1135 (UK / Australia)

The I 1135x490x20x40 steel profile weighs 473.4 kg/m (318.10 lb/ft), has a depth of 1135 mm (44.69 in), flange width 490 mm (19.29 in). Cross-sectional area: 60,300 mm². Moment of inertia Ix = 1,371,274.063 cm⁴, Iy = 78,503 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1135 mm	44.69 in
Width (b)	490 mm	19.29 in
Web thickness (tw)	20 mm	0.79 in
Flange thickness (tf)	40 mm	1.57 in
Weight	473.4 kg/m	318.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	60,300 mm²	93.465 in²
Moment of inertia (Ix)	1,371,274.06 cm⁴	32944.86 in⁴
Moment of inertia (Iy)	78,503 cm⁴	1886.03 in⁴
Elastic section modulus (Sx)	24,163.42 cm³	1474.549 in³
Elastic section modulus (Sy)	3,204.2 cm³	195.533 in³
Plastic section modulus (Zx)	27,027.13 cm³	1649.303 in³
Plastic section modulus (Zy)	4,907.5 cm³	299.475 in³
Radius of gyration (rx)	47.69 cm	18.775 in
Radius of gyration (ry)	11.41 cm	4.492 in