W 338 x 222,9 British Steel · Weight & Dimensions

British Steel, 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 338 x 222,9 (México) · Doble T 338 x 222,9 (Argentina / LATAM) · UB 337.9 (UK / Australia)

The W 338 x 222,9 steel profile weighs 222.9 kg/m (149.82 lb/ft), has a depth of 337.9 mm (13.30 in), flange width 325.7 mm (12.82 in). Cross-sectional area: 28,397.016 mm². Moment of inertia Ix = 52,698.774 cm⁴, Iy = 17,576.763 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	337.9 mm	13.30 in
Width (b)	325.7 mm	12.82 in
Web thickness (tw)	30.3 mm	1.19 in
Flange thickness (tf)	30.4 mm	1.20 in
Fillet radius (r)	15.2 mm	0.60 in
Weight	222.9 kg/m	149.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	28,397.02 mm²	44.015 in²
Moment of inertia (Ix)	52,698.77 cm⁴	1266.09 in⁴
Moment of inertia (Iy)	17,576.76 cm⁴	422.28 in⁴
Elastic section modulus (Sx)	3,119.19 cm³	190.346 in³
Elastic section modulus (Sy)	1,079.32 cm³	65.865 in³
Plastic section modulus (Zx)	3,653.09 cm³	222.926 in³
Plastic section modulus (Zy)	1,679.7 cm³	102.502 in³
Radius of gyration (rx)	13.62 cm	5.363 in
Radius of gyration (ry)	7.87 cm	3.097 in