W410x39 · Weight & Dimensions

AISC — 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 410x39 (México) · Doble T 410x39 (Argentina / LATAM) · UB 399 (UK / Australia)

The W410x39 steel profile weighs 38.8 kg/m (26.07 lb/ft), has a depth of 399 mm (15.71 in), flange width 140 mm (5.51 in). Cross-sectional area: 4,905 mm². Moment of inertia Ix = 12,339.53 cm⁴, Iy = 403.29 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	399 mm	15.71 in
Width (b)	140 mm	5.51 in
Web thickness (tw)	6.4 mm	0.25 in
Flange thickness (tf)	8.8 mm	0.35 in
Fillet radius (r)	10.2 mm	0.40 in
Weight	38.8 kg/m	26.07 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,905 mm²	7.603 in²
Moment of inertia (Ix)	12,339.53 cm⁴	296.46 in⁴
Moment of inertia (Iy)	403.29 cm⁴	9.69 in⁴
Elastic section modulus (Sx)	618.52 cm³	37.745 in³
Elastic section modulus (Sy)	57.61 cm³	3.516 in³
Plastic section modulus (Zx)	713.47 cm³	43.539 in³
Plastic section modulus (Zy)	90.15 cm³	5.501 in³
Radius of gyration (rx)	15.86 cm	6.244 in
Radius of gyration (ry)	2.87 cm	1.130 in