W 390 x 124,8 Acindar · Weight & Dimensions

Acindar, 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 390 x 124,8 (México) · Doble T 390 x 124,8 (Argentina / LATAM) · UB 390 (UK / Australia)

The W 390 x 124,8 steel profile weighs 124.8 kg/m (83.88 lb/ft), has a depth of 390 mm (15.35 in), flange width 300 mm (11.81 in). Cross-sectional area: 15,897.779 mm². Moment of inertia Ix = 45,069.396 cm⁴, Iy = 8,563.829 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	390 mm	15.35 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	11 mm	0.43 in
Flange thickness (tf)	19 mm	0.75 in
Fillet radius (r)	27 mm	1.06 in
Weight	124.8 kg/m	83.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,897.78 mm²	24.642 in²
Moment of inertia (Ix)	45,069.4 cm⁴	1082.79 in⁴
Moment of inertia (Iy)	8,563.83 cm⁴	205.75 in⁴
Elastic section modulus (Sx)	2,311.25 cm³	141.042 in³
Elastic section modulus (Sy)	570.92 cm³	34.840 in³
Plastic section modulus (Zx)	2,561.8 cm³	156.331 in³
Plastic section modulus (Zy)	872.86 cm³	53.266 in³
Radius of gyration (rx)	16.84 cm	6.629 in
Radius of gyration (ry)	7.34 cm	2.890 in