I 2000x550x20x40 CISC · Weight & Dimensions

CISC, 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 2000x550x20x40 (México) · Doble T I 2000x550x20x40 (Argentina / LATAM) · UB 2000 (UK / Australia)

The I 2000x550x20x40 steel profile weighs 646.8 kg/m (434.68 lb/ft), has a depth of 2000 mm (78.74 in), flange width 550 mm (21.65 in). Cross-sectional area: 82,400 mm². Moment of inertia Ix = 5,405,994.667 cm⁴, Iy = 111,044.667 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	2000 mm	78.74 in
Width (b)	550 mm	21.65 in
Web thickness (tw)	20 mm	0.79 in
Flange thickness (tf)	40 mm	1.57 in
Weight	646.8 kg/m	434.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	82,400 mm²	127.720 in²
Moment of inertia (Ix)	5,405,994.67 cm⁴	129879.02 in⁴
Moment of inertia (Iy)	111,044.67 cm⁴	2667.85 in⁴
Elastic section modulus (Sx)	54,059.95 cm³	3298.954 in³
Elastic section modulus (Sy)	4,037.99 cm³	246.414 in³
Plastic section modulus (Zx)	61,552 cm³	3756.149 in³
Plastic section modulus (Zy)	6,242 cm³	380.912 in³
Radius of gyration (rx)	81 cm	31.889 in
Radius of gyration (ry)	11.61 cm	4.570 in