Hollow structural section (HSS) is a type of metal profile with a hollow tubular cross section, including Square Pipes and Rectangular Pipes. Hollow Sections are commonly used in welded steel frames where members experience loading in multiple directions.​

1) Application:

Widely used in furniture,interior decoration,structure

2)Size:  

Square  Tube  OD:10mm*10mm ~ 400mm*400mm

Rectangular Tube   OD:20mm*10mm ~ 400mm*300mm

3)Standard&Grade:

ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36

S235JR,S355JR,Q235 ST37,ST37-2,SS400,STK500,Q235B,Q345

4)Surface: 

Black bared,galvanized,oiled,painted,powdered

5)Packing: 

Waterproof,plastic bag,bundle with strip