A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology.
HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available. HSS is only composed of structural steel per code.
HSS is sometimes mistakenly referenced as hollow structural steel. Rectangular and square HSS are also commonly called tube steel or box section. Circular HSS are sometimes mistakenly called steel pipe, although true steel pipe is actually dimension and classed differently from HSS. (HSS dimensions are based on exterior dimensions of the profile; pipes are also manufactured to an exterior tolerance, albeit to a different standard.) The corners of HSS are heavily rounded, having a radius which is approximately twice the wall thickness. The wall thickness is uniform around the section.
In the UK, or other countries which follow British construction or engineering terminology, the term HSS is not used. Rather, the three basic shapes are referenced as CHS, SHS, and RHS, being circular, square, and rectangular hollow sections. Typically, these designations will also relate to metric sizes, thus the dimensions and tolerances differ slightly from HSS.
ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes
EN 10210 Hot finished structural hollow sections of non-alloy and fine grain structural steels
EN 10219 Cold formed welded structural hollow sections of non-alloy and fine grain steels
ASTM A53 used as structural steel or for low-pressure plumbing
hollow section
Hollow Section (Square and Rectangle) We provide hollow Pipe of an ISO 9001:2008 certified company specializing in the manufacture of MS ERW Black, Hollow pipe sections are mainly used for industrial shade, Home Fabrication, Home furniture, Home interior, Idlers, Belt Conveyors, etc. The product has recently been enhanced with the addition of API Standards pipe manufacturing facilities. Our products are primarily available in company branding, with sub-brands for specific markets. we also provide MS STRIP black Hollow sections of various brands. The range we provide starts from 15*15mm square and Rectangle in thickness starting from 0.8mm in the required length.
Hollow Section (Square and Rectangle) We provide hollow Pipe of an ISO 9001:2008 certified company specializing in the manufacture of MS ERW Black, Hollow pipe sections are mainly used for industrial shade, Home Fabrication, Home furniture, Home interior, Idlers, Belt Conveyors, etc. The product has recently been enhanced with the addition of API Standards pipe manufacturing facilities. Our products are primarily available in company branding, with sub-brands for specific markets. we also provide MS STRIP black Hollow sections of various brands. The range we provide starts from 15*15mm square and Rectangle in thickness starting from 0.8mm in the required length.
Hollow Sections For Constrction
Square steel tube rentangular steel tube
They offer strength and are used in construction and engineering applications for their load-bearing capacity and resistance to bending and torsion force.
Welded ERW Mild Steel Rectangular Hollow Sections. Various thickness & size available. Size range: Rectangular: 38x19mm ~ 150x250mm, Thickness 1.2~9.0mm. Square: 19x19mm ~ 200x200mm, Thickness 1.2~9.0mm. Length: 6M, 12M or as requested. Spec: BSEN10255 / BSEN10219 / ASTM A500 or equivalent / as per requested. Grade: S195T / L275 / S275J0H or equivalent / as per requested. Note: Price is indicative only, please contact with us for further discussion on the final quotation.
Standard: GB6728-2017, ASTM A500 GRADE A, B,C, EN10219 Grade: Q235B,Q355B,SS400, S235JR,S275JR, S275J0R, S275J2R, S355JR,S355J0R, S355J2R Thickness: 1.2mm-18mm Section Shape: Square and Rectangle Place of Origin : Handanï¼?Hebei , China Outer Diameter: 20X20-300X300 & 20X40-400X200 Technique: ERW Certification : CE, SIREM ,ISO Application: Structure pipe Surface Treatment: Hot dipped galvanized or Oil or Black painting/Lacquer Packaging&Deliver Packaging Details : Bundle Delivery Detail : bulk or container
Circular hollow sections are used as columns and braces in portal frames structures. An example is a 114.3 x 5 CHS, which has a diameter of 114.3 mm and the wall is 5 mm thick. Similarly to RHS and SHS sections, hot rolled CHSs are made at the mill as one piece, whereas cold formed CHSs are made of a flat sheet rolled at a radius and welded. It is theirfore easy to note the difference, as the cold rolled CHSs has a weld all along its length.
