Cold-Formed Rectangular Hollow Sections - 200x150x8.0

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.

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Dimensions

PropertyValue
D mm200
B mm150
t mm8
kg/m40.2
A cm251.2

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Ratios for Local Buckling - d/t(1)20
Ratios for Local Buckling - b/t(1)13.8
Second Moment of Area (x-x) - cm42830
Second Moment of Area (y-y) - cm41820
Radius of Gyration (x-x) - cm7.43
Radius of Gyration (y-y) - cm5.95
Elastic Modulus (x-x) - cm3283
Elastic Modulus (y-y) - cm3242
Plastic Modulus (x-x) - cm3344
Plastic Modulus (y-y) - cm3283
Torsional Constants - J cm43670
Torsional Constants - C cm3396
Surface Area (Per Metre) - m20.666
Surface Area (Per Tonne) - m216.5

Full sortable table: Properties table for this category