W 403 x 53,9 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 403 x 53,9 (México) · Doble T 403 x 53,9 (Argentina / LATAM) · UB 402.6 (UK / Australia)

The W 403 x 53,9 steel profile weighs 53.9 kg/m (36.19 lb/ft), has a depth of 402.6 mm (15.85 in), flange width 177.6 mm (6.99 in). Cross-sectional area: 6,855.069 mm². Moment of inertia Ix = 18,667.838 cm⁴, Iy = 1,019.419 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	402.6 mm	15.85 in
Width (b)	177.6 mm	6.99 in
Web thickness (tw)	7.6 mm	0.30 in
Flange thickness (tf)	10.9 mm	0.43 in
Fillet radius (r)	10.2 mm	0.40 in
Weight	53.9 kg/m	36.19 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,855.07 mm²	10.625 in²
Moment of inertia (Ix)	18,667.84 cm⁴	448.49 in⁴
Moment of inertia (Iy)	1,019.42 cm⁴	24.49 in⁴
Elastic section modulus (Sx)	927.36 cm³	56.591 in³
Elastic section modulus (Sy)	114.8 cm³	7.006 in³
Plastic section modulus (Zx)	1,050.59 cm³	64.111 in³
Plastic section modulus (Zy)	177.94 cm³	10.859 in³
Radius of gyration (rx)	16.5 cm	6.497 in
Radius of gyration (ry)	3.86 cm	1.518 in