W 310 x 143,0 CISC · Weight & Dimensions

CISC, 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 310 x 143,0 (México) · Doble T 310 x 143,0 (Argentina / LATAM) · UB 323 (UK / Australia)

The W 310 x 143,0 steel profile weighs 142.9 kg/m (96.01 lb/ft), has a depth of 323 mm (12.72 in), flange width 309 mm (12.17 in). Cross-sectional area: 18,226.142 mm². Moment of inertia Ix = 34,763.984 cm⁴, Iy = 11,269.112 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	323 mm	12.72 in
Width (b)	309 mm	12.17 in
Web thickness (tw)	14 mm	0.55 in
Flange thickness (tf)	22.9 mm	0.90 in
Fillet radius (r)	15 mm	0.59 in
Weight	142.9 kg/m	96.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	18,226.14 mm²	28.251 in²
Moment of inertia (Ix)	34,763.98 cm⁴	835.20 in⁴
Moment of inertia (Iy)	11,269.11 cm⁴	270.74 in⁴
Elastic section modulus (Sx)	2,152.57 cm³	131.358 in³
Elastic section modulus (Sy)	729.39 cm³	44.510 in³
Plastic section modulus (Zx)	2,418.6 cm³	147.593 in³
Plastic section modulus (Zy)	1,108.84 cm³	67.666 in³
Radius of gyration (rx)	13.81 cm	5.437 in
Radius of gyration (ry)	7.86 cm	3.096 in