W 987 x 655,7 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 987 x 655,7 (México) · Doble T 987 x 655,7 (Argentina / LATAM) · UB 987 (UK / Australia)

The W 987 x 655,7 steel profile weighs 655.7 kg/m (440.64 lb/ft), has a depth of 987 mm (38.86 in), flange width 431 mm (16.97 in). Cross-sectional area: 83,527.385 mm². Moment of inertia Ix = 1,335,356.324 cm⁴, Iy = 83,041.783 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	987 mm	38.86 in
Width (b)	431 mm	16.97 in
Web thickness (tw)	34.5 mm	1.36 in
Flange thickness (tf)	62 mm	2.44 in
Fillet radius (r)	19 mm	0.75 in
Weight	655.7 kg/m	440.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	83,527.39 mm²	129.467 in²
Moment of inertia (Ix)	1,335,356.32 cm⁴	32081.94 in⁴
Moment of inertia (Iy)	83,041.78 cm⁴	1995.08 in⁴
Elastic section modulus (Sx)	27,058.89 cm³	1651.242 in³
Elastic section modulus (Sy)	3,853.45 cm³	235.153 in³
Plastic section modulus (Zx)	31,273.88 cm³	1908.457 in³
Plastic section modulus (Zy)	6,022.05 cm³	367.489 in³
Radius of gyration (rx)	39.98 cm	15.742 in
Radius of gyration (ry)	9.97 cm	3.926 in