Cold-Formed Rectangular Hollow Sections - 150x100x5.0

Cold-formed rectangular hollow sections (RHS) are flat-sided, box-shaped steel tubes made by bending flat steel sheets into shape at room temperature and welding the seam. This cold-shaping process triggers "work hardening," which increases the steel's yield strength and makes the finished tube highly resistant to bending. Their flat, straight faces make them much easier to join, bolt, or weld to other flat structural parts compared to round pipes. Thanks to this practical shape and high strength-to-weight ratio, they are a favorite choice for construction frames, machinery scaffolding, and architectural steelwork.

Dimensions

PropertyValue
D mm150
B mm100
t mm5
kg/m18.3
A cm223.4

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Ratios for Local Buckling - d/t(1)25
Ratios for Local Buckling - b/t(1)15
Second Moment of Area (x-x) - cm4719
Second Moment of Area (y-y) - cm4384
Radius of Gyration (x-x) - cm5.55
Radius of Gyration (y-y) - cm4.05
Elastic Modulus (x-x) - cm395.9
Elastic Modulus (y-y) - cm376.8
Plastic Modulus (x-x) - cm3117
Plastic Modulus (y-y) - cm388.3
Torsional Constants - J cm4809
Torsional Constants - C cm3127
Surface Area (Per Metre) - m20.483
Surface Area (Per Tonne) - m226.3

Full sortable table: Properties table for this category