Steel Section Catalog

UB 686x254x170

EN — 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.

The UB 686x254x170 steel profile weighs 170.2 kg/m (114.37 lb/ft), has a depth of 692.9 mm (27.28 in), flange width 255.8 mm (10.07 in). Cross-sectional area: 21,484.7 mm². Moment of inertia Ix = 168,303.33 cm⁴, Iy = 6,627.88 cm⁴.

h=692.9b=255.8tw=14.5tf=23.7
Cross-section (not to scale)

Dimensions

PropertyMetricImperial
Depth (h)692.9 mm27.28 in
Width (b)255.8 mm10.07 in
Web thickness (tw)14.5 mm0.57 in
Flange thickness (tf)23.7 mm0.93 in
Fillet radius (r)15.2 mm0.60 in
Weight170.2 kg/m114.37 lb/ft

Section Properties

PropertyMetricImperial
Area (A)21,484.7 mm²33.301 in²
Moment of inertia (Ix)168,303.33 cm⁴4043.49 in⁴
Moment of inertia (Iy)6,627.88 cm⁴159.23 in⁴
Elastic section modulus (Sx)4,857.94 cm³296.451 in³
Elastic section modulus (Sy)518.21 cm³31.623 in³
Plastic section modulus (Zx)5,567.43 cm³339.747 in³
Plastic section modulus (Zy)809.32 cm³49.388 in³
Radius of gyration (rx)27.99 cm11.020 in
Radius of gyration (ry)5.55 cm2.185 in
UB 686x254x152UB 762x267x134

Beam Calculator— UB 686x254x170

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mfixed @ 0mfixed @ 6m→kN/m

Results — UB 686x254x170

Mmax

15.0 kN·m

Vmax

15.0 kN

δmax

0.05 mm

L/119682

R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard: