Steel Pipe

Steel Pipes are not only used for conveying fluid and powdery solids, exchanging heat energy, making mechanical parts and containers, but also a kind of economic steel. There are many kinds of steel pipes, which can be divided into seamless steel pipe and welded pipe. Steel pipes are widely used.The use of steel pipe to make building structure net frame, pillar and mechanical support can reduce weight, save 20 ~ 40% of metal, and realize mechanized construction of factory. The use of steel pipe to make highway bridges can not only save steel and simplify construction, but also greatly reduce the area of coating protection layer, save investment and maintenance cost. The variety specifications of steel tube products are very various, and their performance requirements are also various. All of these should be distinguished with changes in user requirements or working conditions.

Steel Tubing

sizes	O.D : 21.3mm-712mm W.T : 0.5mm-25mm
	Less than 12 meters,5.8 m and 6m are common
Steel material	Q235, Q345 ,S235JR ,S275 ,S355
Standard	BS1139-1775,EN1039,EN10219,ASTM A53AB
Zinc coating	100-500g if galvanized
Application	Carbon steel pipe use for construction ,building filed , low pressure liquid, water, gas, oil, line pipe
Pipe Ends	1) Plain
	2) Beveled
	3) Thread with Coupling or cap
	4) Chamfer
	5) Groove
	6) Screw
End protector	1) Plastic pipe cap
	2) Iron protector,clamp
Surface Treatment	1) Galvanized
	2) Black Painted (varnish coating)
	3) Bared
	4) Oiled
	5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.
Technique	Electronic Resistance Welded (ERW )
	Electronic Fusion Welded (EFW)
	Double Submerged Arc Welded (DSAW)
Welded Line Type	Longitudinal
Section Shape	Round
Inspection	With Hydraulic Testing, Eddy Current , Infrared Test
Package	1)Bundle
	2)Bulk
Delivery	1) Container
	2) Bulk carrier

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Seamless Steel Tube

Seamless steel pipe is widely used. The general purpose seamless steel pipe is produced by ordinary carbon structural steel, low alloy structural steel or alloy structural steel. The output is the largest, and is mainly used for conveying fluid pipes or structural parts.

Seamless steel pipe has a hollow section, a large number of pipes used for conveying fluid, such as pipelines, such as oil, natural gas, gas, water and some solid materials. Widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing circular parts, can improve the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.

Outdiameter:10---812.2mm(2/5"—32")
Wall thickness: 1.0---200mm(1/25"—8")

STANDARD	GRADE
ASTM A53/A106	Gr.A/B
ASTM A519	4140, 8720, 4130
ASTM A213	T5/T9/T11/T22
ASTM A335	T5/T9/T11/T22
DIN1629	ST35/ST45/ST52
DIN2448	ST37.2/ST37.4/ST52
EN	S235, S355
DIN17175	ST35.8/ST45.8
GB	42CrMo, 40CrNiMo 30CrMnSi, 20CrMnTi

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Square Or Rectangular Tube

A Hollow Structural Section, or HSS, is a type of metal with a hollow tubular section. These sections can be circular (CHS), square (SHS) or rectangular (RHS). Hollow Structural Sections, especially RHS steel is commonly used in welded steel frames while SHS and CHS are more often used in columns. Hollow Steel Sections are also commonly used as beams.

The usual delivery length of the square moment tube is 4000mm-12000mm, with the majority of 6000mm and 12000mm. The square tube is allowed to deliver short and non - scale products that are not less than 2000mm, and can also be delivered in the form of an interface tube, but the buyer should remove the interface tube when it is used. The weight of short and non - scale products does not exceed 5% of the total deliveries, and the square moment pipe with theoretical weight greater than 20kg/m should not exceed 10% of the total delivery.

Material	Q235,SS400 Square Steel Pipe,Weld Square Steel Pipe,Galvanized Square Steel Pipe
Material type	hot rolled weld square steel pipe
Out diameter	10-600mm
Thickness	0.5-20.0mm
Length	6m or as request
Zinc coating	>200g/M2
Fabrication	Plain ends, cutting, threading, etc
Surface treatment	Galvanized,or black
Package	1)In bundle with steel strip, with seaworthy package at the end. Or as the clients’ requirements.2)In bulk
The application	Construction,machine structure pipe, Agriculture equipment pipe, Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc

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