Steel Section Catalog

UC 305x305x198

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 UC 305x305x198 steel profile weighs 198.1 kg/m (133.12 lb/ft), has a depth of 339.9 mm (13.38 in), flange width 314.5 mm (12.38 in). Cross-sectional area: 25,043.2 mm². Moment of inertia Ix = 50,541.59 cm⁴, Iy = 16,295.56 cm⁴.

h=339.9b=314.5tw=19.1tf=31.4
Cross-section (not to scale)

Dimensions

PropertyMetricImperial
Depth (h)339.9 mm13.38 in
Width (b)314.5 mm12.38 in
Web thickness (tw)19.1 mm0.75 in
Flange thickness (tf)31.4 mm1.24 in
Fillet radius (r)15.2 mm0.60 in
Weight198.1 kg/m133.12 lb/ft

Section Properties

PropertyMetricImperial
Area (A)25,043.2 mm²38.817 in²
Moment of inertia (Ix)50,541.59 cm⁴1214.26 in⁴
Moment of inertia (Iy)16,295.56 cm⁴391.50 in⁴
Elastic section modulus (Sx)2,973.91 cm³181.480 in³
Elastic section modulus (Sy)1,036.28 cm³63.238 in³
Plastic section modulus (Zx)3,413.18 cm³208.286 in³
Plastic section modulus (Zy)1,578.16 cm³96.306 in³
Radius of gyration (rx)14.21 cm5.594 in
Radius of gyration (ry)8.07 cm3.177 in

Beam Calculator— UC 305x305x198

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mfixed @ 0mfixed @ 6mkN/m

Results — UC 305x305x198

Mmax

15.0 kN·m

Vmax

15.0 kN

δmax

0.17 mm

L/35941

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