Hot Finished Rectangular Hollow Sections - 400x150x10.0

Hot-finished rectangular hollow sections (RHS) are flat-sided, box-shaped steel tubes manufactured at very high temperatures to ensure a uniform metal structure. Shaping the steel while it is red-hot eliminates the internal stresses found in cold-formed alternatives, making these tubes highly reliable under heavy loads and easier to weld or cut. Their rectangular profile provides superior bending strength along their deeper axis, while the flat faces allow for quick and easy connections to other structural parts. These robust tubes are widely used in demanding engineering applications, such as heavy bridge trusses, building columns, and large-scale industrial frameworks.

Dimensions

PropertyValue
D mm400
B mm150
t mm10
kg/m82.4
A cm2105

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Ratios for Local Buckling - d/t(1)37
Ratios for Local Buckling - b/t(1)12
Second Moment of Area (x-x) - cm420100
Second Moment of Area (y-y) - cm44230
Radius of Gyration (x-x) - cm13.8
Radius of Gyration (y-y) - cm6.35
Elastic Modulus (x-x) - cm31010
Elastic Modulus (y-y) - cm3564
Plastic Modulus (x-x) - cm31290
Plastic Modulus (y-y) - cm3636
Torsional Constants - J cm411500
Torsional Constants - C cm3998
Surface Area (Per Metre) - m21.07
Surface Area (Per Tonne) - m213

Full sortable table: Properties table for this category