I 310x165x8x9.5 IAS · Weight & Dimensions

IAS, welded 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: I 310x165x8x9.5 (México) · Doble T I 310x165x8x9.5 (Argentina / LATAM) · UB 310 (UK / Australia)

The I 310x165x8x9.5 steel profile weighs 42.9 kg/m (28.82 lb/ft), has a depth of 310 mm (12.20 in), flange width 165 mm (6.50 in). Cross-sectional area: 5,463 mm². Moment of inertia Ix = 8,722.451 cm⁴, Iy = 712.495 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	310 mm	12.20 in
Width (b)	165 mm	6.50 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	9.5 mm	0.37 in
Weight	42.9 kg/m	28.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,463 mm²	8.468 in²
Moment of inertia (Ix)	8,722.45 cm⁴	209.56 in⁴
Moment of inertia (Iy)	712.49 cm⁴	17.12 in⁴
Elastic section modulus (Sx)	562.74 cm³	34.341 in³
Elastic section modulus (Sy)	86.36 cm³	5.270 in³
Plastic section modulus (Zx)	640.4 cm³	39.080 in³
Plastic section modulus (Zy)	133.97 cm³	8.176 in³
Radius of gyration (rx)	12.64 cm	4.975 in
Radius of gyration (ry)	3.61 cm	1.422 in