• A variety of hot ERW welded steel pipe  you can find System 1
  • A variety of hot ERW welded steel pipe  you can find System 2
  • A variety of hot ERW welded steel pipe  you can find System 3
A variety of hot ERW welded steel pipe  you can find

A variety of hot ERW welded steel pipe you can find

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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1、Structure of ERW Black Steel Pipe: 

ERW Black Steel Pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2、‍‍Main Features of ERW Black Steel Pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、ERW Black Steel Pipe Specification:

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

8 - 33 mm

Section Shape

Round

Outer Diameter

133 - 219 mm

Place of Origin

Shandong, 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 ERW Black Steel Pipe:  

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
 

6、ERW Black Steel Pipe  Images ‍‍

 

Q:Can steel pipes be used in high-pressure applications?
Yes, steel pipes can be used in high-pressure applications. Steel pipes have high tensile strength and are able to withstand high pressure and temperature conditions, making them suitable for various industrial applications such as oil and gas pipelines, power plants, and chemical processing plants.
Q:What are the different types of supports used for aboveground steel pipes?
There are several types of supports used for aboveground steel pipes, including pipe hangers, pipe clamps, pipe shoes, and pipe saddles. These supports are designed to provide stability and prevent excessive movement or sagging of the pipes. They help distribute the weight of the pipes evenly and ensure proper alignment and support throughout their length.
Q:How are steel pipes protected against external moisture?
Steel pipes are protected against external moisture through a variety of methods. One common method is the application of a protective coating or paint on the surface of the pipes. This coating acts as a barrier, preventing moisture from coming into direct contact with the steel. The coating can be made of different materials, such as epoxy, polyethylene, or zinc, depending on the specific requirements and environment. Another method of protection is through the use of corrosion inhibitors. These inhibitors are added to the internal or external surfaces of the pipes, forming a protective layer that prevents moisture from causing corrosion. Corrosion inhibitors can be in the form of chemicals, such as rust converters or rust preventatives, which react with the steel to form a protective barrier. Additionally, steel pipes can be protected against external moisture through cathodic protection. This technique involves the use of sacrificial anodes or impressed current to create an electric current that protects the steel. Sacrificial anodes, typically made of zinc, aluminum, or magnesium, are attached to the steel pipes and corrode over time instead of the steel, thus preventing moisture-induced corrosion. Furthermore, proper insulation and waterproofing measures are crucial in protecting steel pipes from external moisture. Insulation materials, such as foam or tape, are applied to the pipes to provide an additional layer of protection and prevent moisture infiltration. Waterproofing measures, such as the use of sealants or membranes, can also be implemented to ensure that no moisture seeps into the pipes. Regular maintenance, including inspections and repairs, is essential to ensure the continued protection of steel pipes against external moisture. By promptly addressing any areas of damage or corrosion, the integrity of the protective measures can be maintained, prolonging the lifespan of the steel pipes and preventing costly repairs or replacements in the future.
Q:Are steel pipes suitable for hydronic heating systems?
Yes, steel pipes are suitable for hydronic heating systems. Steel pipes are known for their durability, strength, and resistance to high temperatures and pressure, making them an excellent choice for circulating hot water in hydronic heating systems. They can effectively handle the demands of heating systems and provide reliable and long-lasting performance.
Q:Can steel pipes be used for conveying gases?
Yes, steel pipes can be used for conveying gases. Steel pipes are commonly used in various industries, including oil and gas, petrochemical, and construction, for transporting various types of gases such as natural gas, air, and hydrogen. Steel pipes offer several advantages for gas transportation. They are strong and durable, able to withstand high pressure and temperature conditions. Steel pipes also have excellent resistance to corrosion and can effectively prevent gas leakage, ensuring the safety and reliability of the gas transportation system. Additionally, steel pipes have a smooth internal surface, which minimizes the frictional resistance and allows for efficient gas flow. Overall, steel pipes are a reliable and widely-used option for conveying gases in various applications.
Q:Can steel pipes be used for conveying chemicals?
Steel pipes are capable of conveying chemicals. Steel, being a robust and long-lasting material, can endure high pressure and temperature conditions. This makes it suitable for the transportation of diverse chemicals. Moreover, steel pipes possess exceptional resistance against corrosion, which is particularly crucial when handling corrosive substances. They find common usage in industries such as oil and gas, chemical processing, and water treatment, where the secure and efficient conveyance of chemicals is indispensable. However, it is essential to consider the specific requirements of the chemical being transported and ensure compatibility with the steel pipe. It may be necessary to select the appropriate material, including the utilization of corrosion-resistant coatings or linings, to prevent any adverse reactions between the chemicals and the steel pipe.
Q:What are the different types of steel pipe connections for fire sprinkler systems?
There are several types of steel pipe connections used in fire sprinkler systems including threaded connections, grooved connections, flanged connections, and welded connections.
Q:Hot galvanized steel pipe for use?
The use of hot galvanized steel pipe: mainly used for the delivery of gas, heating.In the greenhouse gas, heating, with the kind of pipe and galvanized pipe, galvanized pipe as a water pipe, produced a lot of rust in the tube, the outflow of water not only pollute the sanitary ware, and mixed with smooth inner wall corrosion caused by bacteria, heavy metal content in the water is too high, serious harm to human health. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries have also issued a civilization, from two, 000 years since the prohibition of galvanized pipe, the current New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe.
Q:How much is the tube?
The first prerequisite we need to determine is: what are the specifications of the steel pipe mentioned? Such as the commonly used steel pipe specifications: diameter 108*4.5, diameter 219*6, diameter 377*10, diameter and wall thickness of steel pipe with different specifications, different weight, so the steel price per meter is different.

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