• A wide variety of galvanized welded steel pipe System 1
  • A wide variety of galvanized welded steel pipe System 2
A wide variety of galvanized welded steel pipe

A wide variety of galvanized welded steel pipe

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
12000 m.t./month

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Specification

Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
3
Length:
6
Net Weight:
1

1Structure of   A wide variety of galvanized welded steel pipe

:

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  A wide variety of galvanized welded steel pipe

:

 

• High manufacturing accuracy

• High strength

• Good visual effect

• Reasonable price 

 

3  A wide variety of galvanized welded steel pipe  Specification

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1 - 33 mm

Section Shape

Round

Outer Diameter

21 - 610mm

Place of Origin

Tianjin, China (Mainland)

Secondary Or Not

Non-secondary

Application

Hydraulic Pipe

Technique

Cold Drawn

Certification

API

Surface Treatment

factory state or painted black

Special Pipe

API Pipe

Alloy Or Not

Non-alloy

Length

5-12M

Outer Diameter

21.3-610mm

Grade 

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

Standard

ASME, ASTM

 

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 of our clients!
4) Surface: galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of  A wide variety of galvanized welded steel pipe :

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.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6‍‍   Galvanized welded round tube and square rectangular tube Images ‍‍

 

 

A wide variety of galvanized welded steel pipe

A wide variety of galvanized welded steel pipe

 

Q:How are steel pipes repaired in case of damage or leaks?
Various methods can be used to repair steel pipes in the event of damage or leaks. Welding is a common approach where a filler material is melted along with the damaged or leaking area, creating a strong bond that seals the leak. This method is effective for small to moderate-sized leaks and finds wide application in industries like oil and gas, plumbing, and construction. Another method involves the use of mechanical couplings. These couplings are designed to connect two sections of pipe securely, ensuring a tight connection. They can be utilized to repair damaged or leaking sections of a steel pipe by removing the damaged area and replacing it with a new section that is linked using the mechanical coupling. This method is particularly useful for larger leaks or damaged sections that cannot be repaired through welding. In certain cases, temporary fixes can be applied using pipe clamps or epoxy compounds. Pipe clamps are employed to seal the damaged area tightly, preventing further leakage. On the other hand, epoxy compounds are directly applied to the damaged or leaking section, creating a temporary seal that stops the leak until a more permanent repair can be carried out. It is essential to consider the severity and location of the damage or leak, as well as the specific requirements of the application, when deciding on the method of repair. In some instances, it may be necessary to replace the entire section of the steel pipe if the damage is extensive or if multiple leaks are present. It is advisable to consult a professional or a specialized pipe repair service to determine the most suitable repair method for a particular situation.
Q:How do you calculate the flow velocity in a steel pipe?
To calculate the flow velocity in a steel pipe, you need to consider the principles of fluid mechanics and apply relevant equations. The most commonly used equation to calculate flow velocity is the Bernoulli equation, which relates the pressure, velocity, and elevation of a fluid. First, you need to determine the volumetric flow rate (Q) of the fluid passing through the pipe. This can be done by measuring the mass flow rate (m) or the volumetric flow rate directly using a flow meter. Once you have the volumetric flow rate, you can proceed with calculating the flow velocity (V). The flow velocity (V) is obtained by dividing the volumetric flow rate (Q) by the cross-sectional area (A) of the pipe. The cross-sectional area of the pipe can be determined using the formula A = πr^2, where r is the radius of the pipe. Therefore, the formula to calculate the flow velocity (V) in a steel pipe is: V = Q / A Keep in mind that this calculation assumes an ideal flow condition and does not account for any frictional losses or other factors that may affect the flow. In real-world scenarios, it is essential to consider additional factors like pipe roughness, fluid viscosity, and pipe diameter to obtain a more accurate estimation of flow velocity.
Q:Which is better, galvanized steel pipe or stainless steel?
Stainless steel is good.Stainless steel (Stainless Steel) is referred to as the stainless steel, the resistance of air, steam, water and other weak corrosive medium or with stainless steel known as stainless steel; while the resistance to chemical corrosion (acid, alkali and salt chemical etching) corrosion of steel called acid resistant steel. Because of the difference in the chemical composition of the two, and make their corrosion resistance is different, ordinary stainless steel is generally not resistant to chemical medium corrosion, and acid resistant steel are generally stainless steel.
Q:How are steel pipes used in tunnel construction?
Steel pipes are commonly used in tunnel construction for various purposes. They are used to provide structural support by acting as reinforcements or casings for the tunnel walls. Steel pipes also serve as conduits for utilities such as water, gas, and electricity within the tunnel. Additionally, they can be used for ventilation and drainage systems, ensuring a safe and functional environment inside the tunnel. Overall, steel pipes play a crucial role in the construction and functionality of tunnels.
Q:How are steel pipes used in the oil and gas industry?
Steel pipes are widely used in the oil and gas industry for various purposes. They are primarily used for transporting oil and gas from production sites to refineries and distribution centers. These pipes are known for their strength, durability, and resistance to corrosion, making them ideal for handling the high-pressure and corrosive nature of oil and gas fluids. Steel pipes are also used in drilling operations as casing and tubing to maintain the integrity of the wellbore and prevent any leakage. Additionally, steel pipes are utilized in the construction of oil and gas infrastructure such as pipelines, storage tanks, and offshore platforms, ensuring the safe and efficient transportation and storage of oil and gas resources.
Q:How are steel pipes classified based on their thickness?
Steel pipes are classified based on their thickness into three categories: standard, extra strong, and double extra strong.
Q:What are the advantages of using steel pipes in plumbing systems?
There are several advantages to using steel pipes in plumbing systems. Firstly, steel pipes are highly durable and resistant to corrosion, making them ideal for carrying water and other fluids. They can withstand high pressure and extreme temperatures, ensuring long-term reliability. Additionally, steel pipes have a smooth interior surface, resulting in less friction and improved flow efficiency. They are also fire resistant, reducing the risk of accidents. Moreover, steel pipes are eco-friendly as they can be recycled, promoting sustainability. Overall, steel pipes offer strength, longevity, and reliability, making them a preferred choice in plumbing systems.
Q:What does "DN25 PN16" mean?
Steel pipe DN25, PN16, first of all, for this annotation: pipe DN class, often used in welded pipe, such as welded pipe DN25. PN16 means pressure, that is, 16 kilograms (1.6MPa).
Q:What are the safety measures to be followed while working with steel pipes?
There are several safety measures that should be followed while working with steel pipes. Firstly, it is important to wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect against potential hazards. Secondly, workers should be cautious of sharp edges or burrs on the pipes and handle them with care to avoid cuts or injuries. Additionally, proper lifting techniques should be employed when moving heavy steel pipes to prevent strains or back injuries. It is also crucial to secure pipes properly during transport or storage to prevent accidents. Finally, workers should be trained on the safe use of tools and equipment associated with steel pipe work to minimize the risk of accidents or damage.
Q:What are the different methods of joining steel pipes?
There are several different methods of joining steel pipes, including welding, threading, flanging, grooving, and using mechanical connectors.

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