W 310 x 33,0 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 33,0 (México) · Doble T 310 x 33,0 (Argentina / LATAM) · UB 313 (UK / Australia)

The W 310 x 33,0 steel profile weighs 32.8 kg/m (22.05 lb/ft), has a depth of 313 mm (12.32 in), flange width 102 mm (4.02 in). Cross-sectional area: 4,181.378 mm². Moment of inertia Ix = 6,507.024 cm⁴, Iy = 191.87 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	313 mm	12.32 in
Width (b)	102 mm	4.02 in
Web thickness (tw)	6.6 mm	0.26 in
Flange thickness (tf)	10.8 mm	0.43 in
Fillet radius (r)	8 mm	0.31 in
Weight	32.8 kg/m	22.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,181.38 mm²	6.481 in²
Moment of inertia (Ix)	6,507.02 cm⁴	156.33 in⁴
Moment of inertia (Iy)	191.87 cm⁴	4.61 in⁴
Elastic section modulus (Sx)	415.78 cm³	25.373 in³
Elastic section modulus (Sy)	37.62 cm³	2.296 in³
Plastic section modulus (Zx)	480.92 cm³	29.348 in³
Plastic section modulus (Zy)	59.63 cm³	3.639 in³
Radius of gyration (rx)	12.47 cm	4.911 in
Radius of gyration (ry)	2.14 cm	0.843 in