W 320 x 126,4 Acindar · Weight & Dimensions

Acindar, 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 320 x 126,4 (México) · Doble T 320 x 126,4 (Argentina / LATAM) · UB 320 (UK / Australia)

The W 320 x 126,4 steel profile weighs 126.4 kg/m (84.93 lb/ft), has a depth of 320 mm (12.60 in), flange width 300 mm (11.81 in). Cross-sectional area: 16,134.279 mm². Moment of inertia Ix = 30,823.542 cm⁴, Iy = 9,238.825 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	320 mm	12.60 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	11.5 mm	0.45 in
Flange thickness (tf)	20.5 mm	0.81 in
Fillet radius (r)	27 mm	1.06 in
Weight	126.4 kg/m	84.93 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,134.28 mm²	25.008 in²
Moment of inertia (Ix)	30,823.54 cm⁴	740.54 in⁴
Moment of inertia (Iy)	9,238.83 cm⁴	221.96 in⁴
Elastic section modulus (Sx)	1,926.47 cm³	117.561 in³
Elastic section modulus (Sy)	615.92 cm³	37.586 in³
Plastic section modulus (Zx)	2,149.24 cm³	131.155 in³
Plastic section modulus (Zy)	939.1 cm³	57.307 in³
Radius of gyration (rx)	13.82 cm	5.442 in
Radius of gyration (ry)	7.57 cm	2.979 in