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Circular Hollow Section,round steel hollow section

Specifications of Circular Hollow Section (CHS):

1.Outer Diameter: 54mm-258mm
2.Wall Thickness: 2.5mm-4mm
3.Theoretical Weight:3.175kg/m-25.056kg/m
4.Cross Section Area: 4.045m2-31.919m2
5.Standard: ASTM, GB, DIN, JIS
6.Technique: hot rolled or ERW (seamless and welded steel pipe)
7.Size: 10*10mm-500*500mm (square) or 20*10mm~600*400mm (rectangular)
8.Implementation of standards: Executable GB6728-2002 standards for structural steel cold-formed hollow Executable JISG3466-88 in Japan to adapt the general scope of Rectangular Pipe Construction Standards Application: Widely used in bridge buildings, construction supports, mechanical tube, and furniture etc.
9.General Packaging: Follow as clients' requirement
All circular tube is available in a range of standard lengths or can be cut as you request.

Circular Hollow Section

Product Name	round steel tube/round steel hollow section/CHS/circular hollow section
Size	OD	13-1800mm
	Wall Thickness	0.8-35mm
	Length	less than 12m
Standard	ASTM A53 BS1387 BS EN39 ASTM A500 BS4568 BS EN31
Material	Chinese Grade	Q195 Q235 Q345
	Foreign Grade	ASTM	ASTM A519 :Grade B,Grade C,Grade D,Grade 50
		EN	S185,S235JR,S235JO,E335,S355JR,S355J2
		JIS	S JIS 4051:S330,SS400,SPFC590,S20C, S45C
Usage	Used For Construction,Machinofacture And Accessorize,ect
Ends	Plain,Beveled,Threaded with coupling or cap
Surface Treatment	Bared,Galvanized,Black painted(varnish coating),With oiled,corrosion resistant coating
Technique	ERW(Electronic Resistance Welding)
	EFW(Electronic Fusion Welding)
	DSAW(Double Submerged Arc Welding)
Welded Line Type	Longitudinal
Section Shape	Round
Inspection	With Hydraulic Testing,Eddy Current and Infrared Test

Features of Circular Hollow Sections (CHS):

1.Polished lines cause smooth surface appearance

2.Ideal for applications where the products confront compression and tension

3.Perfect as bracing and columns

4.Lack of protruding edges makes them safe to touch

5.Smooth round surfaces used in thoroughfare areas

6.Fully closed sections are less exposed to the environment

7.Easy to keep clean from dust and other material build-up

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Applications of Circular Hollow Sections (CHS):

1.Residential construction: structural and foundation uses

2.Non-Residential construction: commercial and industrial construction, signage, leisure equipment , road furniture, stadiums, fire hydrant/sprinkler application

3.Manufacturing: materials handling equipment

4.Mining: conveyor equipment, wash plants, mining equipment

5.Rural: feed and fencing, farm machinery

6.Transport: truck and trailer, horse floats, car carrying, box trailers

7.Powder coaters: playground equipment, architectural features in shopping centers

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