Steel Section Catalog

HSS 305x305x9.5

AISC — Square Hollow Section

Square Hollow Sections (SHS) are tubular profiles with equal sides, ideal for columns and compression members due to their uniform buckling resistance in all directions.

The HSS 305x305x9.5 steel profile weighs 78.0 kg/m (52.42 lb/ft), has a depth of 304.8 mm (12.00 in), flange width 304.8 mm (12.00 in). Cross-sectional area: 10,419.2 mm². Moment of inertia Ix = 15,228.26 cm⁴, Iy = 15,228.26 cm⁴.

h=304.8b=304.8t=8.8
Cross-section (not to scale)

Dimensions

PropertyMetricImperial
Depth (h)304.8 mm12.00 in
Width (b)304.8 mm12.00 in
Thickness (t)8.8 mm0.35 in
Fillet radius (r)17.6 mm0.69 in
Weight78.0 kg/m52.42 lb/ft

Section Properties

PropertyMetricImperial
Area (A)10,419.2 mm²16.150 in²
Moment of inertia (Ix)15,228.26 cm⁴365.86 in⁴
Moment of inertia (Iy)15,228.26 cm⁴365.86 in⁴
Elastic section modulus (Sx)999.23 cm³60.977 in³
Elastic section modulus (Sy)999.23 cm³60.977 in³
Plastic section modulus (Zx)1,156.87 cm³70.597 in³
Plastic section modulus (Zy)1,156.87 cm³70.597 in³
Radius of gyration (rx)12.09 cm4.760 in
Radius of gyration (ry)12.09 cm4.760 in

Beam Calculator— HSS 305x305x9.5

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mfixed @ 0mfixed @ 6mkN/m

Results — HSS 305x305x9.5

Mmax

15.0 kN·m

Vmax

15.0 kN

δmax

0.55 mm

L/10829

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