• Welded Black ERW Pipe GB9711.2 ERW Pipe System 1
  • Welded Black ERW Pipe GB9711.2 ERW Pipe System 2
Welded Black ERW Pipe GB9711.2 ERW Pipe

Welded Black ERW Pipe GB9711.2 ERW Pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
5600 m.t./month

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1、Structure of Welded Black ERW Pipe GB9711.2 :

Welded Black ERW Pipe GB9711.2  is electric resistance welding, the abbreviation for ERW for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.With sound reputation and high quality , we will offer clients a wonderful business experience.

 

2、‍‍Main Features of Welded Black ERW Pipe GB9711.2 :

• High manufacturing accuracy

• High strength

• Good visual effect

• Good view and appearance 

• Good shape 

• Reasonable price  

• Small inertia resistance

• Strong heat dissipation ability

 

3、Welded Black ERW Pipe GB9711.2  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:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

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:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

4、Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5、FAQ of Welded Black ERW Pipe GB9711.2 : 

①How 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.

②How 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.

③Why 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、‍‍ Welded Black ERW Pipe GB9711.2  Images: ‍‍

Welded Black ERW Pipe GB9711.2 ERW Pipe

Welded Black ERW Pipe GB9711.2 ERW Pipe

 

 

 

Q:What is the difference between steel pipes and cast iron pipes?
The main difference between steel pipes and cast iron pipes lies in their composition and durability. Steel pipes are made from an alloy of iron and carbon, which results in a strong and durable material. They are highly resistant to corrosion and can withstand high pressure and temperature. On the other hand, cast iron pipes are made from molten iron and have a higher carbon content. While they are also durable and have good pressure-bearing capabilities, they are more prone to rust and corrosion over time. Additionally, cast iron pipes are typically heavier and more brittle compared to steel pipes.
Q:How are steel pipes used in the construction of desalination plants?
Steel pipes are commonly used in the construction of desalination plants for various purposes. They are primarily utilized for the transportation of seawater and brine, as well as for the distribution of fresh water throughout the plant. Steel pipes are preferred due to their durability, corrosion resistance, and ability to withstand high pressure and extreme temperatures. Additionally, they can be easily welded together, allowing for efficient installation and maintenance.
Q:Where is the difference between seamless steel pipe and welded pipe?
Seamless pipe pressure is higher, welded pipe is generally in 10 or so MPa, now welded pipe to do seamless processing.
Q:What are the different types of steel pipe coatings for nuclear power plants?
There are several types of steel pipe coatings used in nuclear power plants, including epoxy coatings, fusion-bonded epoxy (FBE) coatings, and polyethylene (PE) coatings. These coatings provide corrosion and chemical resistance to the steel pipes, ensuring their longevity and safety in the demanding environment of a nuclear power plant.
Q:How are steel pipes used in the construction of irrigation systems?
Steel pipes are commonly used in the construction of irrigation systems due to their strength and durability. These pipes are used to transport water from a water source, such as a well or reservoir, to the desired areas for irrigation. They are often used in underground or above-ground applications, providing a reliable and efficient means of delivering water to crops or plants. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for irrigation systems that require long-term functionality.
Q:What is the difference between steel pipes and concrete pipes?
Steel pipes and concrete pipes differ in their composition, construction, and characteristics. Steel pipes are made from steel, whereas concrete pipes are made from a mixture of cement, sand, aggregate, and water. Steel pipes are known for their strength, durability, and resistance to corrosion, making them suitable for high-pressure applications and underground installations. Concrete pipes, on the other hand, are renowned for their affordability, ease of installation, and resistance to fire. They are commonly used in stormwater drainage systems and sewerage networks. Overall, the choice between steel pipes and concrete pipes depends on the specific requirements of the project, such as budget, load-bearing capacity, and environmental factors.
Q:Can steel pipes be used for sewer systems?
Yes, steel pipes can be used for sewer systems. Steel pipes are commonly used in sewer systems due to their durability, strength, and resistance to corrosion. They are able to withstand the harsh conditions and high pressure of sewage flow, making them a reliable choice for sewer infrastructure.
Q:Can steel pipes be used for oil wells?
Indeed, oil wells can utilize steel pipes. In the oil and gas sector, steel pipes are frequently employed owing to their robustness, longevity, and resistance to corrosion. They possess the capability to endure the immense pressures and temperatures experienced during oil well drilling and production. Moreover, steel pipes efficiently and securely transport oil from the well to the surface, making them the favored option for oil well infrastructure. Furthermore, steel pipes can be effortlessly welded and threaded, enabling convenient installation and maintenance in oil well applications.
Q:How much is 4 inches steel tube MM?
The nominal diameter of the 4 inch steel pipe is DN100, that is to say, the diameter of the center of the pipe wall is 100mm.
Q:What are the different methods of pipe inspection for steel pipes?
There are several methods of pipe inspection that can be used for steel pipes. Some of the commonly used methods are as follows: 1. Visual Inspection: This is the most basic form of pipe inspection where a trained inspector visually examines the exterior and interior of the pipe to identify any visible defects or abnormalities. This method is often used as a preliminary inspection before more advanced techniques are employed. 2. Magnetic Particle Inspection (MPI): MPI involves applying a magnetic field to the steel pipe and then applying iron particles to the surface. Any surface cracks or defects in the pipe will cause a leakage of magnetic flux, which can be detected by the inspector. This method is particularly effective in identifying surface defects in ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect internal defects or anomalies in steel pipes. A transducer is used to send ultrasonic waves into the pipe, and the reflections or echoes of the sound waves are analyzed to determine the presence of defects such as corrosion, cracks, or wall thickness variations. 4. Radiographic Testing (RT): In this method, X-rays or gamma rays are used to create an image of the internal structure of the steel pipe. The X-rays or gamma rays pass through the pipe, and the resulting image can reveal any defects, such as cracks, corrosion, or weld discontinuities. This method is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that uses electromagnetic induction to detect surface and near-surface defects in steel pipes. A coil carrying an alternating current is passed over the pipe's surface, and any changes in the electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET is a method that detects and analyzes the high-frequency acoustic signals emitted by materials when they undergo deformation or damage. In the case of steel pipes, AET can be used to monitor and identify defects such as cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These are just a few of the commonly used methods of pipe inspection for steel pipes. The choice of method depends on various factors such as the type of defect being looked for, the accessibility of the pipe, the desired level of sensitivity, and the cost and time constraints. It is often recommended to use a combination of inspection techniques to ensure a thorough assessment of the steel pipes.

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