W 397 x 57,4 Arval · Weight & Dimensions

Arval, 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 397 x 57,4 (México) · Doble T 397 x 57,4 (Argentina / LATAM) · UB 397 (UK / Australia)

The W 397 x 57,4 steel profile weighs 57.4 kg/m (38.56 lb/ft), has a depth of 397 mm (15.63 in), flange width 180 mm (7.09 in). Cross-sectional area: 7,309.558 mm². Moment of inertia Ix = 20,292.594 cm⁴, Iy = 1,170.593 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	397 mm	15.63 in
Width (b)	180 mm	7.09 in
Web thickness (tw)	7 mm	0.28 in
Flange thickness (tf)	12 mm	0.47 in
Fillet radius (r)	21 mm	0.83 in
Weight	57.4 kg/m	38.56 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,309.56 mm²	11.330 in²
Moment of inertia (Ix)	20,292.59 cm⁴	487.53 in⁴
Moment of inertia (Iy)	1,170.59 cm⁴	28.12 in⁴
Elastic section modulus (Sx)	1,022.3 cm³	62.385 in³
Elastic section modulus (Sy)	130.07 cm³	7.937 in³
Plastic section modulus (Zx)	1,143.9 cm³	69.805 in³
Plastic section modulus (Zy)	202.07 cm³	12.331 in³
Radius of gyration (rx)	16.66 cm	6.560 in
Radius of gyration (ry)	4 cm	1.576 in