W 250 x 17,9 Gerdau · Weight & Dimensions

Gerdau · 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 250 x 17,9 (México) · Doble T 250 x 17,9 (Argentina / LATAM) · UB 251 (UK / Australia)

The W 250 x 17,9 steel profile weighs 17.9 kg/m (12.03 lb/ft), has a depth of 251 mm (9.88 in), flange width 101 mm (3.98 in). Cross-sectional area: 2,310.361 mm². Moment of inertia Ix = 2,291.229 cm⁴, Iy = 91.446 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	251 mm	9.88 in
Width (b)	101 mm	3.98 in
Web thickness (tw)	4.8 mm	0.19 in
Flange thickness (tf)	5.3 mm	0.21 in
Fillet radius (r)	10 mm	0.39 in
Weight	17.9 kg/m	12.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,310.36 mm²	3.581 in²
Moment of inertia (Ix)	2,291.23 cm⁴	55.05 in⁴
Moment of inertia (Iy)	91.45 cm⁴	2.20 in⁴
Elastic section modulus (Sx)	182.57 cm³	11.141 in³
Elastic section modulus (Sy)	18.11 cm³	1.105 in³
Plastic section modulus (Zx)	211 cm³	12.876 in³
Plastic section modulus (Zy)	28.82 cm³	1.758 in³
Radius of gyration (rx)	9.96 cm	3.921 in
Radius of gyration (ry)	1.99 cm	0.783 in