I 1600x550x16x40 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.

Also known as: I 1600x550x16x40 (México) · Doble T I 1600x550x16x40 (Argentina / LATAM) · UB 1600 (UK / Australia)

The I 1600x550x16x40 steel profile weighs 536.3 kg/m (360.40 lb/ft), has a depth of 1600 mm (62.99 in), flange width 550 mm (21.65 in). Cross-sectional area: 68,320 mm². Moment of inertia Ix = 3,145,787.733 cm⁴, Iy = 110,968.549 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1600 mm	62.99 in
Width (b)	550 mm	21.65 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	40 mm	1.57 in
Weight	536.3 kg/m	360.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	68,320 mm²	105.896 in²
Moment of inertia (Ix)	3,145,787.73 cm⁴	75577.55 in⁴
Moment of inertia (Iy)	110,968.55 cm⁴	2666.02 in⁴
Elastic section modulus (Sx)	39,322.35 cm³	2399.607 in³
Elastic section modulus (Sy)	4,035.22 cm³	246.245 in³
Plastic section modulus (Zx)	43,561.6 cm³	2658.303 in³
Plastic section modulus (Zy)	6,147.28 cm³	375.132 in³
Radius of gyration (rx)	67.86 cm	26.715 in
Radius of gyration (ry)	12.74 cm	5.018 in