W 310 x 45,0 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 45,0 (México) · Doble T 310 x 45,0 (Argentina / LATAM) · UB 313 (UK / Australia)

The W 310 x 45,0 steel profile weighs 44.7 kg/m (30.02 lb/ft), has a depth of 313 mm (12.32 in), flange width 166 mm (6.54 in). Cross-sectional area: 5,691.298 mm². Moment of inertia Ix = 9,933.886 cm⁴, Iy = 854.719 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	313 mm	12.32 in
Width (b)	166 mm	6.54 in
Web thickness (tw)	6.6 mm	0.26 in
Flange thickness (tf)	11.2 mm	0.44 in
Fillet radius (r)	8 mm	0.31 in
Weight	44.7 kg/m	30.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,691.3 mm²	8.822 in²
Moment of inertia (Ix)	9,933.89 cm⁴	238.66 in⁴
Moment of inertia (Iy)	854.72 cm⁴	20.53 in⁴
Elastic section modulus (Sx)	634.75 cm³	38.735 in³
Elastic section modulus (Sy)	102.98 cm³	6.284 in³
Plastic section modulus (Zx)	708.33 cm³	43.225 in³
Plastic section modulus (Zy)	157.76 cm³	9.627 in³
Radius of gyration (rx)	13.21 cm	5.201 in
Radius of gyration (ry)	3.88 cm	1.526 in