HP 310 x 79,0 Gerdau · Weight & Dimensions

Gerdau · 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: HP 310 x 79,0 (México) · Doble T HP 310 x 79,0 (Argentina / LATAM) · UB 299 (UK / Australia)

The HP 310 x 79,0 steel profile weighs 79.0 kg/m (53.09 lb/ft), has a depth of 299 mm (11.77 in), flange width 306 mm (12.05 in). Cross-sectional area: 9,998.752 mm². Moment of inertia Ix = 16,314.799 cm⁴, Iy = 5,258.059 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	299 mm	11.77 in
Width (b)	306 mm	12.05 in
Web thickness (tw)	11 mm	0.43 in
Flange thickness (tf)	11 mm	0.43 in
Fillet radius (r)	16 mm	0.63 in
Weight	79.0 kg/m	53.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,998.75 mm²	15.498 in²
Moment of inertia (Ix)	16,314.8 cm⁴	391.96 in⁴
Moment of inertia (Iy)	5,258.06 cm⁴	126.32 in⁴
Elastic section modulus (Sx)	1,091.29 cm³	66.595 in³
Elastic section modulus (Sy)	343.66 cm³	20.972 in³
Plastic section modulus (Zx)	1,210.06 cm³	73.843 in³
Plastic section modulus (Zy)	525.37 cm³	32.060 in³
Radius of gyration (rx)	12.77 cm	5.029 in
Radius of gyration (ry)	7.25 cm	2.855 in