W 309 x 28,2 IMCA · Weight & Dimensions

IMCA, 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 309 x 28,2 (México) · Doble T 309 x 28,2 (Argentina / LATAM) · UB 309 (UK / Australia)

The W 309 x 28,2 steel profile weighs 28.2 kg/m (18.94 lb/ft), has a depth of 309 mm (12.17 in), flange width 102 mm (4.02 in). Cross-sectional area: 3,562.8 mm². Moment of inertia Ix = 5,323.673 cm⁴, Iy = 157.937 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
Weight	28.2 kg/m	18.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,562.8 mm²	5.522 in²
Moment of inertia (Ix)	5,323.67 cm⁴	127.90 in⁴
Moment of inertia (Iy)	157.94 cm⁴	3.79 in⁴
Elastic section modulus (Sx)	344.57 cm³	21.027 in³
Elastic section modulus (Sy)	30.97 cm³	1.890 in³
Plastic section modulus (Zx)	399.63 cm³	24.387 in³
Plastic section modulus (Zy)	48.92 cm³	2.985 in³
Radius of gyration (rx)	12.22 cm	4.813 in
Radius of gyration (ry)	2.11 cm	0.829 in