W 256 x 37,2 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 256 x 37,2 (México) · Doble T 256 x 37,2 (Argentina / LATAM) · UB 256 (UK / Australia)

The W 256 x 37,2 steel profile weighs 37.2 kg/m (25.01 lb/ft), has a depth of 256 mm (10.08 in), flange width 146.4 mm (5.76 in). Cross-sectional area: 4,716.562 mm². Moment of inertia Ix = 5,536.79 cm⁴, Iy = 570.646 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	256 mm	10.08 in
Width (b)	146.4 mm	5.76 in
Web thickness (tw)	6.3 mm	0.25 in
Flange thickness (tf)	10.9 mm	0.43 in
Fillet radius (r)	7.6 mm	0.30 in
Weight	37.2 kg/m	25.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,716.56 mm²	7.311 in²
Moment of inertia (Ix)	5,536.79 cm⁴	133.02 in⁴
Moment of inertia (Iy)	570.65 cm⁴	13.71 in⁴
Elastic section modulus (Sx)	432.56 cm³	26.397 in³
Elastic section modulus (Sy)	77.96 cm³	4.757 in³
Plastic section modulus (Zx)	483.23 cm³	29.489 in³
Plastic section modulus (Zy)	119.37 cm³	7.285 in³
Radius of gyration (rx)	10.83 cm	4.266 in
Radius of gyration (ry)	3.48 cm	1.369 in