I 618x230x15.5x20 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.

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Also known as: I 618x230x15.5x20 (México) · Doble T I 618x230x15.5x20 (Argentina / LATAM) · UB 618 (UK / Australia)

The I 618x230x15.5x20 steel profile weighs 142.6 kg/m (95.79 lb/ft), has a depth of 618 mm (24.33 in), flange width 230 mm (9.06 in). Cross-sectional area: 18,159 mm². Moment of inertia Ix = 107,221.741 cm⁴, Iy = 4,073.603 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	618 mm	24.33 in
Width (b)	230 mm	9.06 in
Web thickness (tw)	15.5 mm	0.61 in
Flange thickness (tf)	20 mm	0.79 in
Weight	142.6 kg/m	95.79 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	18,159 mm²	28.146 in²
Moment of inertia (Ix)	107,221.74 cm⁴	2576.00 in⁴
Moment of inertia (Iy)	4,073.6 cm⁴	97.87 in⁴
Elastic section modulus (Sx)	3,469.96 cm³	211.751 in³
Elastic section modulus (Sy)	354.23 cm³	21.616 in³
Plastic section modulus (Zx)	4,045.38 cm³	246.865 in³
Plastic section modulus (Zy)	563.72 cm³	34.400 in³
Radius of gyration (rx)	24.3 cm	9.567 in
Radius of gyration (ry)	4.74 cm	1.865 in