Galvanized welded steel pipe for materials

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10 m.t.
Supply Capability:
20000 m.t./month

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Item specifice:

Standard: EN,API,DIN,BS,GB,JIS,ASTM,AISI Technique: ERW,Forged,Cold Rolled,Hot Rolled,Extruded,Saw,Cold Drawn,Spring,EFW Shape: LTZ,Oval,Round,Hexagonal,C Channel,Square,Rectangular
Surface Treatment: Galvanized Steel Grade: RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B),Q235B,Q215B,Q235,Q215,Q195 Thickness: 3
Length: 2 Net Weight: 1

Product Description:

1Structure of  Galvanized welded steel pipe for materials :

The surface of galvanized steel pipe welded steel pipe of hot dip galvanized layer or. Galvanized can increase the corrosion resistance of the steel tube, prolong service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low pressure fluid pipelines. It is also used in the petroleum industry, especially for offshore oil field of oil well pipe and oil pipe, chemical, coking equipment of oil heater, condensation cooler, coal run oil exchanger tube, and trestle pile, the mine tunnel support frame tube.


2‍‍Main Features of  Galvanized welded steel pipe for building materials :


• High manufacturing accuracy

• High strength

• Good visual effect

• Reasonable price 


3 Galvanized welded steel pipe for building materials  Specification



ASTM A106-2006, ASTM A53-2007


10#-45#, 16Mn

10#, 20#, 45#, 16Mn


1 - 33 mm

Section Shape


Outer Diameter

21 - 610mm

Place of Origin

Tianjin, China (Mainland)

Secondary Or Not



Hydraulic Pipe


Cold Drawn



Surface Treatment

factory state or painted black

Special Pipe

API Pipe

Alloy Or Not




Outer Diameter



20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B




1) Material:Q195 Q235 Q345 X42 X52

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements  


4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT


5FAQ of  Galvanized welded steel pipe for building materials :

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.


6‍‍  Galvanized welded steel pipe for building materials  Images ‍‍

Galvanized welded steel pipe for materials

Galvanized welded steel pipe for materials

Galvanized welded steel pipe for materials



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Q:Water, gas, steel pipes, thick steel wire means?
Often used in water, heating, gas, compressed air and vacuum lines. Can be used in pressure gauge pressure of 0.6 MPa (6 atm) steam pipe and condensate pipeline below, can also be used for conveying non erosive and non flammable and explosive media. Is divided into ordinary (working pressure is 1 MPa pressure gauge, 10) and strengthening (working pressure gauge is 1.6 MPa, 16 ATM) two. Galvanized white iron tube (galvanized iron tube). Non galvanized black iron pipe (black pipe).
Q:How can galvanized steel pipe be connected with stainless steel pipe?
The method of non direct fusion is adopted, such as blue, silk head and movable joint
Q:What kind of argon arc welding wire is used for 16Mn steel pipe?
JB/T4709 recommends H10MnSi, but H10MnSi allows a lower value of strength of 430MPa, which does not match the parent material. I think American Standard is selected according to the selection of welding wire ER70S-6 GB ER50-6 wire can guarantee the equivalent strength of parent materials, and Si, Mn content can also guarantee the deoxidation effect, the weld joint is not easy to produce pores.
Q:What is PE coated steel pipe? Seek explanation
The appearance of the native HDPE is milky white and is somewhat translucent in the narrow cross section. PE has excellent properties that are resistant to most life and industrial chemicals. Polyethylene (PE) pipe due to its unique advantages and is widely used in building water supply, drainage, underground drainage pipe, building heating, gas pipelines, electrical and telecommunications, industrial protective casing pipes, agricultural pipes etc.. The utility model is mainly used for urban water supply, urban gas supply and farmland irrigation.
Q:Difference between cold rolled steel pipe and common steel pipe
1, from the dimension accuracy above, cold-rolled steel pipe size is good, high precision2. from the outward appearance, the surface of cold-rolled steel pipe is bright, and the surface of hot rolled steel pipe has obvious oxide skin or red rust
Q:What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?
Classification is not the only way, fastener type steel pipe scaffolding is divided by force, and the latter 2 are classified according to the structure.
Q:How are steel tubes represented?
If it is seamless steel pipe, welded steel pipe, the method of expression is: nominal diameter refers to the outer diameter (diameter * wall thickness). The unit is mm. [for example, seamless steel tubes of phi 32 * 3. It means that the nominal diameter (outside diameter) is seamless steel pipe of phi 32mm and wall thickness 3mm.
Q:Hot galvanized steel pipe for use?
Hot galvanized pipe: in order to improve the corrosion resistance of steel pipe, galvanized steel pipe. Galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, zinc plating cost is low, the surface is not very smooth.The hot-dip galvanized pipe is an alloy layer that causes molten metal to react with the iron matrix, thus combining the substrate with the two coating. Hot dip galvanizing is the first steel pickling, in order to remove iron, steel pipe surface after pickling, cleaning by ammonium chloride or zinc chloride solution or ammonium chloride and zinc chloride aqueous solution tank, and then into the hot dip tank. Hot galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on. A complex physical and chemical reaction is formed between the steel tube matrix and the molten plating solution to form a corrosion resistant structure with a tight zinc - iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
Q:RC is it welded steel pipe or galvanized steel pipe?
RC pipe is galvanized steel pipe, usually followed by the diameter, such as RC50, that is, 50mm galvanized steel pipe.
Q:What's the difference between stainless steel seamless tube and stainless steel welded pipe?
Stainless steel seamless pipe featuresFirst, the product of the wall is thicker, it is more economical and practical, the wall thickness of the thinner, processing costs will be substantially increased it; secondly, the product process to determine its performance limitations, generally low precision seamless steel pipe: uneven thickness, tube inner surface brightness low and high cost of fixed length, and the inner surface pitting and black spots difficult to remove; the detection and plastic third, must be processed offline. Therefore, it has its advantages in high pressure, high strength, mechanical structure and timber.

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