W 684 x 140,3 IMCA · Weight & Dimensions

IMCA, 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 684 x 140,3 (México) · Doble T 684 x 140,3 (Argentina / LATAM) · UB 684 (UK / Australia)

The W 684 x 140,3 steel profile weighs 140.3 kg/m (94.27 lb/ft), has a depth of 684 mm (26.93 in), flange width 254 mm (10.00 in). Cross-sectional area: 17,614.08 mm². Moment of inertia Ix = 134,090.889 cm⁴, Iy = 5,172.192 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	684 mm	26.93 in
Width (b)	254 mm	10.00 in
Web thickness (tw)	12.4 mm	0.49 in
Flange thickness (tf)	18.9 mm	0.74 in
Weight	140.3 kg/m	94.27 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	17,614.08 mm²	27.302 in²
Moment of inertia (Ix)	134,090.89 cm⁴	3221.53 in⁴
Moment of inertia (Iy)	5,172.19 cm⁴	124.26 in⁴
Elastic section modulus (Sx)	3,920.79 cm³	239.262 in³
Elastic section modulus (Sy)	407.26 cm³	24.853 in³
Plastic section modulus (Zx)	4,487.36 cm³	273.837 in³
Plastic section modulus (Zy)	634.52 cm³	38.721 in³
Radius of gyration (rx)	27.59 cm	10.863 in
Radius of gyration (ry)	5.42 cm	2.133 in