W 140 x 12,9 SAISC · Weight & Dimensions

SAISC, 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 140 x 12,9 (México) · Doble T 140 x 12,9 (Argentina / LATAM) · UB 140 (UK / Australia)

The W 140 x 12,9 steel profile weighs 12.9 kg/m (8.65 lb/ft), has a depth of 140 mm (5.51 in), flange width 73 mm (2.87 in). Cross-sectional area: 1,642.602 mm². Moment of inertia Ix = 541.224 cm⁴, Iy = 44.918 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	140 mm	5.51 in
Width (b)	73 mm	2.87 in
Web thickness (tw)	4.7 mm	0.19 in
Flange thickness (tf)	6.9 mm	0.27 in
Fillet radius (r)	7 mm	0.28 in
Weight	12.9 kg/m	8.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,642.6 mm²	2.546 in²
Moment of inertia (Ix)	541.22 cm⁴	13.00 in⁴
Moment of inertia (Iy)	44.92 cm⁴	1.08 in⁴
Elastic section modulus (Sx)	77.32 cm³	4.718 in³
Elastic section modulus (Sy)	12.31 cm³	0.751 in³
Plastic section modulus (Zx)	88.34 cm³	5.391 in³
Plastic section modulus (Zy)	19.25 cm³	1.175 in³
Radius of gyration (rx)	5.74 cm	2.260 in
Radius of gyration (ry)	1.65 cm	0.651 in