VS 850x155 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 850x155 (México) · Doble T VS 850x155 (Argentina / LATAM) · UB 850 (UK / Australia)

The VS 850x155 steel profile weighs 155.4 kg/m (104.43 lb/ft), has a depth of 850 mm (33.46 in), flange width 350 mm (13.78 in). Cross-sectional area: 19,796 mm². Moment of inertia Ix = 265,344.032 cm⁴, Iy = 13,580.548 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	850 mm	33.46 in
Width (b)	350 mm	13.78 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	19 mm	0.75 in
Weight	155.4 kg/m	104.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,796 mm²	30.684 in²
Moment of inertia (Ix)	265,344.03 cm⁴	6374.89 in⁴
Moment of inertia (Iy)	13,580.55 cm⁴	326.27 in⁴
Elastic section modulus (Sx)	6,243.39 cm³	380.997 in³
Elastic section modulus (Sy)	776.03 cm³	47.357 in³
Plastic section modulus (Zx)	6,844.84 cm³	417.699 in³
Plastic section modulus (Zy)	1,176.74 cm³	71.810 in³
Radius of gyration (rx)	36.61 cm	14.414 in
Radius of gyration (ry)	8.28 cm	3.261 in