2017 seamless steel tubes and pipes fort coupling stock of casing and boiler
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 6000 m.t./month
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Product Description:
1、Structure of Welded Black ERW Steel Pipe:
ERW steel pipe 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.
2、Main Features of Welded Black ERW Steel Pipe:
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
• Small inertia resistance
• Strong heat dissipation ability
3、 Welded Black ERW Steel Pipe Images：
Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
4、Welded Black ERW Steel Pipe Specification：
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Standard | GB, DIN, ASTM |
Grade | B、Q235 |
Thickness | 1 - 33 mm |
Section Shape | Round |
Outer Diameter | 21 - 610 mm |
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.
- Q:What are the common methods for repairing steel pipes?
- Some common methods for repairing steel pipes include welding, pipe wrapping, pipe relining, and pipe bursting.
- Q:Are steel tubes and round steel in weight or length when purchased?
- A large amount of words is calculated by weight, less is usually calculated. According to the length between the length and quality of a material is usually a scaling. Steel belongs to the section, with the length of valuation, according to the classification of wall thickness and diameter; round steel belongs to building materials, mostly for the amount of weighing per ton of valuation, a small amount of more than according to the length multiplied by the conversion ratio of weight to that theory. But the latter is the valuation of tons of steel products between the uneven thickness, with uniform proportion will produce larger price difference, so the general price of different manufacturers are not the same, mostly depends on the quality, to a certain extent is to balance the diameter difference.
- Q:How can seamless steel tubes be produced?
- The material of rolling seamless tube is round tube blank, and the billet is processed by cutting machine to grow about 1 meters, and sent to the furnace by conveyor belt. The billets are heated into a furnace and the temperature is about 1200 degrees celsius. The fuel is hydrogen or acetylene. The temperature control in the furnace is a key problem. When the round billet is released, it should be punched through the pressure piercer. The most common punching machine is a cone roll piercer, which has high production efficiency, good product quality, large perforation and expanding diameter, and can be used in various steel grades. After the perforation, the round tube blank has been successively rolled, rolled or squeezed by three rollers.
- Q:What are the different types of steel pipes?
- There are several different types of steel pipes, including seamless steel pipes, welded steel pipes, galvanized steel pipes, and stainless steel pipes.
- Q:How are steel pipes used in the agricultural irrigation systems?
- Steel pipes are commonly used in agricultural irrigation systems to transport water from a water source, such as a well or reservoir, to the fields. They are durable and can withstand high pressure, making them suitable for long-distance water transportation. Steel pipes are also resistant to corrosion and can withstand various weather conditions, ensuring reliable and efficient water distribution for crop irrigation.
- Q:Can steel pipes be used for underground fuel storage systems?
- Yes, steel pipes can be used for underground fuel storage systems. Steel pipes are commonly used for underground fuel storage due to their durability, strength, and resistance to corrosion. Additionally, steel pipes can be easily welded and sealed, ensuring a secure storage system for fuels.
- Q:How are steel pipes protected against external corrosion in coastal areas?
- Steel pipes are protected against external corrosion in coastal areas through a combination of coating and cathodic protection measures. One of the most common methods used is the application of a protective coating on the surface of the steel pipe. This coating acts as a barrier between the steel surface and the corrosive elements present in the coastal environment, such as saltwater and humidity. The coating is typically made of materials like epoxy or polyethylene, which are resistant to corrosion and provide a long-lasting protective layer. In addition to coating, cathodic protection is also employed to further safeguard the steel pipes from corrosion. Cathodic protection involves the use of sacrificial anodes or impressed current to prevent the corrosion of the steel. Sacrificial anodes are made of more reactive metals, such as zinc or aluminum, which are attached to the steel pipe. These anodes corrode instead of the steel, sacrificing themselves to protect the steel surface. Impressed current systems, on the other hand, use an external power source to provide a protective current to the steel, preventing corrosion. Regular inspection and maintenance of the protective coating and cathodic protection system are crucial to ensure their effectiveness. Coatings may deteriorate over time due to wear and tear, requiring periodic inspection and reapplication if necessary. Similarly, sacrificial anodes need to be replaced when they are depleted, and impressed current systems require monitoring and adjustment to maintain the desired level of protection. Overall, by combining effective coating techniques with cathodic protection measures, steel pipes in coastal areas can be adequately protected against external corrosion, ensuring their longevity and optimal performance.
- Q:How are steel pipes used in the manufacturing of ships?
- Steel pipes are used in the manufacturing of ships for various purposes such as constructing the hull, supporting structural components, and facilitating the transportation of fluids and gases within the vessel.
- Q:How are steel pipes used in agriculture?
- Various purposes in agriculture make steel pipes widely used, with one common application being irrigation systems. These pipes, known for their durability and ability to withstand water pressure, transport water from wells or reservoirs to different areas of farms, enabling efficient water distribution over long distances. Furthermore, steel pipes find utility in agricultural drainage systems. By removing excess water from fields, they prevent waterlogging and ensure proper drainage. Their resistance to corrosion is particularly significant in agricultural settings, where exposure to moisture and various chemicals is common. Moreover, steel pipes serve a vital purpose in the construction of greenhouse structures. They provide structural support for the greenhouse framework and facilitate the installation of irrigation systems and other equipment. The strength and sturdiness of steel pipes enable them to withstand harsh weather conditions, making them an ideal choice for greenhouse construction. Additionally, livestock farming benefits from the use of steel pipes. They are frequently employed in the creation of fences and enclosures for animals, providing a secure and long-lasting barrier. Steel pipes also play a crucial role in the construction of animal shelters and barns. To summarize, steel pipes play a crucial and versatile role in agriculture. They are integral components in irrigation systems, drainage systems, greenhouse construction, and livestock farming. Thanks to their durability, strength, and resistance to corrosion, steel pipes are an excellent choice for a wide range of agricultural applications.
- Q:What is the difference between carbon steel pipes and stainless steel pipes?
- The main difference between carbon steel pipes and stainless steel pipes lies in their composition. Carbon steel pipes are primarily made of iron and carbon, while stainless steel pipes contain iron, carbon, and a minimum of 10.5% chromium. This chromium content in stainless steel pipes creates a protective layer of chromium oxide on the surface, making them highly resistant to corrosion. On the other hand, carbon steel pipes are more susceptible to corrosion and require additional coatings or treatments to prevent rusting. Additionally, stainless steel pipes offer better heat resistance and can withstand higher temperatures compared to carbon steel pipes.
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2017 seamless steel tubes and pipes fort coupling stock of casing and boiler
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 6000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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