W 310 x 375,0 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 375,0 (México) · Doble T 310 x 375,0 (Argentina / LATAM) · UB 391 (UK / Australia)

The W 310 x 375,0 steel profile weighs 374.4 kg/m (251.62 lb/ft), has a depth of 391 mm (15.39 in), flange width 330 mm (12.99 in). Cross-sectional area: 47,736.782 mm². Moment of inertia Ix = 112,784.497 cm⁴, Iy = 34,370.905 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	391 mm	15.39 in
Width (b)	330 mm	12.99 in
Web thickness (tw)	35.4 mm	1.39 in
Flange thickness (tf)	57.2 mm	2.25 in
Fillet radius (r)	15 mm	0.59 in
Weight	374.4 kg/m	251.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	47,736.78 mm²	73.992 in²
Moment of inertia (Ix)	112,784.5 cm⁴	2709.65 in⁴
Moment of inertia (Iy)	34,370.91 cm⁴	825.76 in⁴
Elastic section modulus (Sx)	5,769.03 cm³	352.049 in³
Elastic section modulus (Sy)	2,083.09 cm³	127.118 in³
Plastic section modulus (Zx)	7,003.97 cm³	427.410 in³
Plastic section modulus (Zy)	3,205.26 cm³	195.598 in³
Radius of gyration (rx)	15.37 cm	6.052 in
Radius of gyration (ry)	8.49 cm	3.341 in