I 570x490x20x40 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 570x490x20x40 (México) · Doble T I 570x490x20x40 (Argentina / LATAM) · UB 570 (UK / Australia)

The I 570x490x20x40 steel profile weighs 384.6 kg/m (258.48 lb/ft), has a depth of 570 mm (22.44 in), flange width 490 mm (19.29 in). Cross-sectional area: 49,000 mm². Moment of inertia Ix = 295,412.833 cm⁴, Iy = 78,465.333 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	570 mm	22.44 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	384.6 kg/m	258.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	49,000 mm²	75.950 in²
Moment of inertia (Ix)	295,412.83 cm⁴	7097.29 in⁴
Moment of inertia (Iy)	78,465.33 cm⁴	1885.13 in⁴
Elastic section modulus (Sx)	10,365.36 cm³	632.536 in³
Elastic section modulus (Sy)	3,202.67 cm³	195.440 in³
Plastic section modulus (Zx)	11,588.5 cm³	707.177 in³
Plastic section modulus (Zy)	4,851 cm³	296.027 in³
Radius of gyration (rx)	24.55 cm	9.667 in
Radius of gyration (ry)	12.65 cm	4.982 in