I 550x150x6x16 Cintac · Weight & Dimensions

Cintac, 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 550x150x6x16 (México) · Doble T I 550x150x6x16 (Argentina / LATAM) · UB 550 (UK / Australia)

The I 550x150x6x16 steel profile weighs 62.1 kg/m (41.72 lb/ft), has a depth of 550 mm (21.65 in), flange width 150 mm (5.91 in). Cross-sectional area: 7,908 mm². Moment of inertia Ix = 41,178.552 cm⁴, Iy = 900.932 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	550 mm	21.65 in
Width (b)	150 mm	5.91 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	16 mm	0.63 in
Weight	62.1 kg/m	41.72 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,908 mm²	12.257 in²
Moment of inertia (Ix)	41,178.55 cm⁴	989.31 in⁴
Moment of inertia (Iy)	900.93 cm⁴	21.64 in⁴
Elastic section modulus (Sx)	1,497.4 cm³	91.377 in³
Elastic section modulus (Sy)	120.12 cm³	7.330 in³
Plastic section modulus (Zx)	1,684.09 cm³	102.770 in³
Plastic section modulus (Zy)	184.66 cm³	11.269 in³
Radius of gyration (rx)	22.82 cm	8.984 in
Radius of gyration (ry)	3.38 cm	1.329 in