I 205x207x8x12.5 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 205x207x8x12.5 (México) · Doble T I 205x207x8x12.5 (Argentina / LATAM) · UB 205 (UK / Australia)

The I 205x207x8x12.5 steel profile weighs 51.9 kg/m (34.90 lb/ft), has a depth of 205 mm (8.07 in), flange width 207 mm (8.15 in). Cross-sectional area: 6,615 mm². Moment of inertia Ix = 5,189.691 cm⁴, Iy = 1,848.631 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	205 mm	8.07 in
Width (b)	207 mm	8.15 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	12.5 mm	0.49 in
Weight	51.9 kg/m	34.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,615 mm²	10.253 in²
Moment of inertia (Ix)	5,189.69 cm⁴	124.68 in⁴
Moment of inertia (Iy)	1,848.63 cm⁴	44.41 in⁴
Elastic section modulus (Sx)	506.31 cm³	30.897 in³
Elastic section modulus (Sy)	178.61 cm³	10.900 in³
Plastic section modulus (Zx)	562.89 cm³	34.350 in³
Plastic section modulus (Zy)	270.69 cm³	16.518 in³
Radius of gyration (rx)	8.86 cm	3.487 in
Radius of gyration (ry)	5.29 cm	2.081 in