W 310 x 28,0 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 28,0 (México) · Doble T 310 x 28,0 (Argentina / LATAM) · UB 309 (UK / Australia)

The W 310 x 28,0 steel profile weighs 28.3 kg/m (19.04 lb/ft), has a depth of 309 mm (12.17 in), flange width 102 mm (4.02 in). Cross-sectional area: 3,617.738 mm². Moment of inertia Ix = 5,437.309 cm⁴, Iy = 158.075 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	309 mm	12.17 in
Width (b)	102 mm	4.02 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	8.9 mm	0.35 in
Fillet radius (r)	8 mm	0.31 in
Weight	28.3 kg/m	19.04 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,617.74 mm²	5.607 in²
Moment of inertia (Ix)	5,437.31 cm⁴	130.63 in⁴
Moment of inertia (Iy)	158.07 cm⁴	3.80 in⁴
Elastic section modulus (Sx)	351.93 cm³	21.476 in³
Elastic section modulus (Sy)	31 cm³	1.891 in³
Plastic section modulus (Zx)	407.53 cm³	24.869 in³
Plastic section modulus (Zy)	49.18 cm³	3.001 in³
Radius of gyration (rx)	12.26 cm	4.827 in
Radius of gyration (ry)	2.09 cm	0.823 in