SPIRAL STEEL PIPE

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Product Description:

Packaging & Delivery

Packaging Detail:

standard export packing or as customer's requirement

Delivery Detail:

within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard:  SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness:  3.0mm-30mm

4.Outer diameter:  φ168mm-3020mm

5,Length:  5m-12m or as your requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-q345 Material Steel Pipe's Materials

     Elements
     Material  

Chemical Compsition%

Mechanical Property

C%

Mn%

S%

P%

Si%

Yield Point (Mpa)

Tensile Strength(Mpa)

Elongation
(%)

Q195

0.06-0.12

0.25-0.50

<0.050

<0.045

<0.030

>195

315-430

32-33

Q215

0.09-0.15

0.25-0.55

<0.05

<0.045

<0.030

>215

335-450

26-31

Q235

0.12-0.20

0.30-0.70

<0.045

<0.045

<0.030

>235

375-500

24-26

Q345

<0.20

1.0-1.6

<0.040

<0.040

<0.55

>345

470-630

21-22

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Q:What's the difference between a rectangular tube and a rectangular steel tube?
Rectangular tube is a kind of hollow long strip steel, also known as flat tube, flat square tube or square flat tube (Gu Mingsiyi). A large amount of pipe used to transport fluids, such as petroleum,Natural gas, water, gas, steam, etc., in addition to bending and torsional strength of the same weight is lighter, so it is also widely used in the manufacture of machinery parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
Major use differentiation:1, seamed tube can withstand the maximum operating pressure is generally less than 20 kg, which is the most secure use. It is generally used in water, gas, compressed air and other low-pressure fluid;2 seamless tube can withstand ultra-high pressure, of course, its wall thickness will also increase, which needs to be designed according to pressure requirements. It is generally used in high-pressure oil pipes, boiler tubes and other high temperature and high pressure equipment. There are also seamless tubes for structural purposes, depending on the design requirements.3, there are some seamed steel pipe seamless treatment tube, it is the weld annealing treatment, eliminate the residual stress of the weld, the weld and base material, the pressure range of basic and seamless pipe is. May also consider the use of.4, of course, the market also has some use overall heating after drawing steel pipe joints or mandrel rolling seamless steel pipe, mainly in small size, only in the shape of this kind of pipe belongs to the seamless tube, it is not very good
Q:What are the main aspects of precision steel tubes?
Its inside and outside diameter size can be accurate to less than 0.2mm, and it is widely used in the manufacture of precision machinery parts and engineering structure when the bending resistance and torsion strength are the same. It is also used to produce all kinds of conventional weapons, guns, shells, bearings and so on.
Q:Is the seamless steel pipe used in the market hot or cold drawn?
Seamless pipe hot rolling, cold rolling, cold drawn three kinds. Among them, the amount of hot rolling, the largest quantity, the price is relatively cheap. Precision, roughness, mechanical properties, cold drawn and cold rolled are better. Of course, the specific use of your requirements, not expensive
Q:What is lined pipe?
Is the coating of the inside of the pipe, such as pipe conveying sulfuric acid will corrode, corrosion, but soft plastic pipe, buried in the ground to wall thicker, then you can use the liner and characteristics of hard for using steel pipe laying, sheathed in the steel pipe into the thin plastic tube, it can transport the sulfuric acid,
Q:How to make the internal tooth of the steel pipe?
Cylindrical thread can be used, if the tube is too long, you may consider a short tube with thread, and then welded to the long tube. Taper thread is more difficult to use than ordinary vehicle, and the tap is generally considered. The tap can be clamped on the tailstock.
Q:Why should the weak electricity be pre buried with galvanized steel pipe?
Galvanized steel is widely used in construction, machinery, coal, chemical industry, railway vehicles, automobile industry, highway, bridge, container, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.
Q:How to perform nondestructive inspection of steel tubes
The detection principle is based on the ferromagnetic material is magnetized in a magnetic field, discontinuity materials and products (defects) produce leakage magnetic field, magnetic powder adsorption (or detecting) and appear (or on the instrument display). Therefore, this method can only be used for the inspection of the surface or near surface defects of ferromagnetic materials or products.
Q:What does "HBB" glass steel pipe mean?
HBB glass fiber reinforced plastic cable protection tube is suitable for power, communication and communication cables laying protection pipes in all kinds of occasions. Especially in the traffic crossing through cable and cable bridge across the river, the use of the special environment, more fully reflects its simple construction, high strength performance, widely used in the construction of infrastructure, transportation, electricity, communications and other fields of Civil Aviation Airport
Q:Is the diameter of the steel tube indicated by the outer diameter by the wall thickness or by the inside diameter by the wall thickness?
1, DN refers to the nominal diameter of the pipe, the outer diameter and diameter of the average. The value of DN, the value of =De, the thickness of -0.5* tube wall. Note: This is neither outer diameter nor inner diameter. Water and gas transmission pipe (galvanized steel pipe or non galvanized steel pipe), cast iron pipe, steel plastic composite pipe and polyvinyl chloride (PVC) pipe, etc., shall be marked with nominal diameter "DN" (such as DN15, DN50).2, De mainly refers to the pipe diameter, PPR, PE, PP pipe diameter, generally use the De label, are marked as outer diameter and thickness of the form, De25 * 3.3 and D generally refer to the inner diameter of the pipe.4, d concrete pipe diameter. Reinforced concrete (or concrete) pipe, clay pipe, acid resistant ceramic tube, pipe and other pipe diameter gangwa, should be said with inner diameter of D (such as D230, D380 etc.)5, Phi represents the diameter of the ordinary circle. It can also indicate the outer diameter of the pipe, but it should be multiplied by the wall thickness at this time. Such as: Phi 25 x 3, indicating outer diameter 25mm, wall thickness of 3mm pipe.

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