W 310 x 158,0 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 158,0 (México) · Doble T 310 x 158,0 (Argentina / LATAM) · UB 327 (UK / Australia)

The W 310 x 158,0 steel profile weighs 157.8 kg/m (106.03 lb/ft), has a depth of 327 mm (12.87 in), flange width 310 mm (12.20 in). Cross-sectional area: 20,045.542 mm². Moment of inertia Ix = 38,632.892 cm⁴, Iy = 12,473.691 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	327 mm	12.87 in
Width (b)	310 mm	12.20 in
Web thickness (tw)	15.5 mm	0.61 in
Flange thickness (tf)	25.1 mm	0.99 in
Fillet radius (r)	15 mm	0.59 in
Weight	157.8 kg/m	106.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	20,045.54 mm²	31.071 in²
Moment of inertia (Ix)	38,632.89 cm⁴	928.16 in⁴
Moment of inertia (Iy)	12,473.69 cm⁴	299.68 in⁴
Elastic section modulus (Sx)	2,362.87 cm³	144.192 in³
Elastic section modulus (Sy)	804.75 cm³	49.109 in³
Plastic section modulus (Zx)	2,672.06 cm³	163.060 in³
Plastic section modulus (Zy)	1,224.82 cm³	74.744 in³
Radius of gyration (rx)	13.88 cm	5.466 in
Radius of gyration (ry)	7.89 cm	3.106 in