VS 650x128 Usiminas · Weight & Dimensions

Usiminas, 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: VS 650x128 (México) · Doble T VS 650x128 (Argentina / LATAM) · UB 650 (UK / Australia)

The VS 650x128 steel profile weighs 127.9 kg/m (85.96 lb/ft), has a depth of 650 mm (25.59 in), flange width 300 mm (11.81 in). Cross-sectional area: 16,296 mm². Moment of inertia Ix = 128,791.575 cm⁴, Iy = 8,552.611 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	650 mm	25.59 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	19 mm	0.75 in
Weight	127.9 kg/m	85.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,296 mm²	25.259 in²
Moment of inertia (Ix)	128,791.58 cm⁴	3094.22 in⁴
Moment of inertia (Iy)	8,552.61 cm⁴	205.48 in⁴
Elastic section modulus (Sx)	3,962.82 cm³	241.827 in³
Elastic section modulus (Sy)	570.17 cm³	34.794 in³
Plastic section modulus (Zx)	4,345.79 cm³	265.197 in³
Plastic section modulus (Zy)	864.79 cm³	52.773 in³
Radius of gyration (rx)	28.11 cm	11.068 in
Radius of gyration (ry)	7.24 cm	2.852 in