W 203 x 25,3 SAISC · Weight & Dimensions

SAISC, hot-rolled 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: IPR 203 x 25,3 (México) · Doble T 203 x 25,3 (Argentina / LATAM) · UB 203.2 (UK / Australia)

The W 203 x 25,3 steel profile weighs 25.3 kg/m (16.99 lb/ft), has a depth of 203.2 mm (8.00 in), flange width 133.4 mm (5.25 in). Cross-sectional area: 3,199.942 mm². Moment of inertia Ix = 2,343.149 cm⁴, Iy = 309.013 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	203.2 mm	8.00 in
Width (b)	133.4 mm	5.25 in
Web thickness (tw)	5.7 mm	0.22 in
Flange thickness (tf)	7.8 mm	0.31 in
Fillet radius (r)	7.6 mm	0.30 in
Weight	25.3 kg/m	16.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,199.94 mm²	4.960 in²
Moment of inertia (Ix)	2,343.15 cm⁴	56.29 in⁴
Moment of inertia (Iy)	309.01 cm⁴	7.42 in⁴
Elastic section modulus (Sx)	230.62 cm³	14.074 in³
Elastic section modulus (Sy)	46.33 cm³	2.827 in³
Plastic section modulus (Zx)	258.04 cm³	15.746 in³
Plastic section modulus (Zy)	71.15 cm³	4.342 in³
Radius of gyration (rx)	8.56 cm	3.369 in
Radius of gyration (ry)	3.11 cm	1.223 in