W 319 x 151,5 CISC · Weight & Dimensions

CISC, 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 319 x 151,5 (México) · Doble T 319 x 151,5 (Argentina / LATAM) · UB 319 (UK / Australia)

The W 319 x 151,5 steel profile weighs 151.5 kg/m (101.81 lb/ft), has a depth of 319 mm (12.56 in), flange width 321 mm (12.64 in). Cross-sectional area: 19,316.662 mm². Moment of inertia Ix = 33,788.255 cm⁴, Iy = 11,491.01 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	319 mm	12.56 in
Width (b)	321 mm	12.64 in
Web thickness (tw)	20.8 mm	0.82 in
Flange thickness (tf)	20.8 mm	0.82 in
Fillet radius (r)	15 mm	0.59 in
Weight	151.5 kg/m	101.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,316.66 mm²	29.941 in²
Moment of inertia (Ix)	33,788.25 cm⁴	811.76 in⁴
Moment of inertia (Iy)	11,491.01 cm⁴	276.07 in⁴
Elastic section modulus (Sx)	2,118.39 cm³	129.272 in³
Elastic section modulus (Sy)	715.95 cm³	43.690 in³
Plastic section modulus (Zx)	2,417.31 cm³	147.514 in³
Plastic section modulus (Zy)	1,104.29 cm³	67.388 in³
Radius of gyration (rx)	13.23 cm	5.207 in
Radius of gyration (ry)	7.71 cm	3.037 in