Welded Black ERW Steel Pipe Q235B Scaffolding Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 27 m.t.
- Supply Capability:
- 6000 m.t./month
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1、Structure of Welded Black ERW Steel Pipe Q235B:
ERW steel pipe is electric resistance welding, the abbreviation for ERW for conveying gas, water, and petroleum foroil and natural gas industries. And used for structural steel pies purpose. 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 Welded Black ERW Steel Pipe Q235B:
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
• Small inertia resistance
• Strong heat dissipation ability
3、Welded Black ERW Steel Pipe Q235B 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.
7) Shippment : This will be done under the request of clilents with the standard and professional agency.
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 Steel Pipe Q235B:
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.
With sound reputation and high quality , we will offer clients a wonderful business experience. Hope we have the opportunity to develop our busyness successfully hand in hand.
6、 Welded Black ERW Steel Pipe Q235B Images：
- Q:What place must use galvanized steel pipe to make lighting line?
- Galvanized steel is widely used in construction, machinery, coal, chemical industry, railway vehicles, automobile industry, highway, bridge, container, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.
- Q:What are the different methods of joining steel pipes together?
- There are multiple techniques for connecting steel pipes, each with its own pros and cons. 1. Welding, the most commonly used method, involves heating and applying pressure to fuse the pipe ends. This creates a robust joint, but it necessitates skilled labor and specialized equipment. 2. Threaded connections involve threading the ends and using fittings to connect the pipes. This method is relatively simple and quick, but it may not be as strong as welding and can be prone to leakage if not sealed properly. 3. Flanged connections involve using flanges and bolts to connect the pipes. This allows for easy disassembly and reassembly, making it suitable for applications that require frequent maintenance. Flanged connections are also highly resistant to leakage. 4. Compression fittings involve compressing a ring or ferrule onto the pipe to create a tight seal. This method is straightforward and does not require heat or welding, making it ideal for applications where heat or sparks are prohibited. 5. Grooved connections involve cutting grooves into the pipe ends and using mechanical couplings to secure them. This method is fast, reliable, and allows for easy assembly and disassembly. Grooved connections are commonly used in fire protection systems. 6. Brazing, similar to welding, involves heating the pipe ends and adding filler material to join them. This method is often used for smaller diameter pipes and provides a strong joint, but it requires a high-temperature torch and skilled labor. Each method has its own advantages and is suitable for different applications. The choice of joining method depends on factors such as required strength, ease of installation, maintenance requirements, and pipe type.
- Q:What are the different factors affecting the flow rate of steel pipes?
- The flow rate of steel pipes can be affected by multiple factors. Let's explore some of these factors: 1. Pipe diameter: The size of the pipe plays a significant role in determining the flow rate. Generally, larger pipes allow for greater flow rates as they provide a larger cross-sectional area for the fluid to pass through. 2. Pipe length: The length of the pipe also impacts the flow rate. Longer pipes tend to have higher friction losses, which can decrease the flow rate. Moreover, longer pipes may require higher pressure to maintain the desired flow rate. 3. Fluid viscosity: The viscosity of the fluid passing through the pipe is an important consideration. Viscous fluids, such as heavy oils, exhibit higher resistance to flow, resulting in lower flow rates. Conversely, less viscous fluids, like water, encounter lower resistance and can achieve higher flow rates. 4. Pressure difference: The pressure difference across the pipe serves as a driving force for flow. A higher pressure difference will lead to a higher flow rate, while a lower pressure difference will reduce the flow rate. 5. Surface roughness: The roughness of the inner pipe surface influences the flow rate. Rough surfaces generate more turbulence and friction, thus resulting in a lower flow rate. Conversely, smoother surfaces minimize turbulence and friction, allowing for a higher flow rate. 6. Temperature: The temperature of the fluid can impact its viscosity and density, which subsequently affect the flow rate. Higher temperatures generally decrease the viscosity of fluids, leading to increased flow rates. 7. Pipe material: The choice of pipe material impacts the flow rate due to varying roughness and resistance. Steel pipes, for instance, typically possess a smoother inner surface compared to pipes made of other materials, resulting in higher flow rates. 8. Pipe fittings and bends: The presence of fittings, valves, and bends in the pipe can cause flow restrictions and pressure drops, which can decrease the flow rate. Proper design and placement of these components can minimize their impact on the flow rate. Understanding the interplay of these factors is essential for the design and optimization of fluid flow systems involving steel pipes.
- Q:How are steel pipes used in the food and beverage industry?
- Steel pipes are commonly used in the food and beverage industry for various applications including transporting water, steam, gases, and other liquids. They are preferred due to their durability, strength, and resistance to corrosion, ensuring the safety and hygiene of food and beverage products. These pipes are used in processes such as conveying ingredients, transferring liquids and gases during production, and supplying utilities like water and steam for cleaning and sterilization purposes.
- Q:Heating system DN40 and DN32 welded steel pipe how to connect?
- As for the flange connection: low pressure pipeline is generally not used in this way, can be divided into threaded flanges and flange welding flange, and the flange connecting pipes of different diameters, only the welded flange to diameter, said in a low pressure pipeline which has low pressure pipe connection make an unnecessary move, this is not much, but there are also people with non the standard flange for connecting different pipe diameter, which is not consistent with the technical specification!
- Q:How are steel pipes used in the construction of stormwater drainage systems?
- Steel pipes are commonly used in the construction of stormwater drainage systems due to their durability and strength. They are used to create underground networks that efficiently channel rainwater away from urban areas, preventing floods and water damage. Steel pipes are resistant to corrosion and can withstand heavy loads, making them suitable for the long-term and reliable functioning of stormwater drainage systems.
- Q:How are steel pipes used in the manufacturing of machinery and equipment?
- Steel pipes are widely used in the manufacturing of machinery and equipment due to their numerous beneficial properties. These pipes are primarily used for conveying various materials, fluids, and gases within the machinery, providing a safe and efficient means of transportation. One of the key uses of steel pipes in machinery manufacturing is in the process of hydraulic and pneumatic systems. Hydraulic systems rely on steel pipes to transmit power and control fluid flow, while pneumatic systems use these pipes to convey compressed air to power various components. The strength and durability of steel pipes ensure that they can withstand the high pressure and forces exerted by these systems, making them a reliable choice for such applications. Additionally, steel pipes are used in the construction of machinery frames and structures. Their high tensile strength and resistance to corrosion make them ideal for providing structural support and stability to heavy machinery. These pipes can be easily welded, bent, and fabricated into various shapes, allowing for flexibility in design and enabling the creation of complex machinery structures. Furthermore, steel pipes play a vital role in the transportation of raw materials and finished products within the manufacturing process. They are commonly used as conduits for the movement of liquids, gases, and granular materials, facilitating the smooth operation of machinery and equipment. Steel pipes are particularly suitable for handling abrasive and corrosive materials, as their robust construction ensures minimal wear and tear over time. In summary, steel pipes are extensively used in the manufacturing of machinery and equipment due to their strength, durability, and versatility. Whether it is for hydraulic systems, structural support, or material transportation, steel pipes are an integral component that contributes to the efficiency and reliability of machinery in various industries.
- Q:How is the steel pipe dance installed at home?
- According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters. The steel pipe fittings used in the pipe dance are made of smooth surface material, usually chrome or polished by steel or iron.
- Q:Is there any difference between thermal expansion seamless steel pipe and seamless steel pipe?
- One is thermal expansion on a bar, that is, piercing between the bars and expanding the tube with a little bit of mandrel. The other is to expand the formed tube before it is heated so that the defects in the pipe will be enlarged. Comparatively speaking, the quality of the first kind is better than the second, and you should belong to the second kind. Compared with the original seamless seamless tube, the quality and chemical properties are certainly different. The price will be cheaper, too.
- Q:Can steel pipes be used for gas transportation?
- Yes, steel pipes can be used for gas transportation. Steel is a commonly used material for gas pipelines due to its strength, durability, and resistance to corrosion. Steel pipes are able to withstand high pressures and are suitable for transporting both natural gas and propane. They are also capable of withstanding extreme temperatures, making them ideal for gas transportation in various environments. Additionally, steel pipes can be welded together, allowing for a seamless and continuous pipeline system. However, it is important to ensure that the steel pipes used for gas transportation are properly coated and protected against corrosion to prevent any leaks or damage to the pipeline.
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Welded Black ERW Steel Pipe Q235B Scaffolding Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 27 m.t.
- Supply Capability:
- 6000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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