High quality Roller pipes from China
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
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- Supply Capability:
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Outside diameter | 1/2”-12” |
Wall Thickness | 1.0 -12mm SCH40,60,80, etc. |
Tolerance | ±5% |
Material | Q195,Q215,Q235,Q345 |
Quality grade | First grade |
Section Shape | Round |
Surface Treatment | Hot rolled and ERW |
Technique | Hot rolled |
Ends | Threaded Ends, Grooved Ends |
Length | Less than 12m |
MOQ | 10 Metric Ton or as your request if normal size |
Deliver Time | Stock |
Package | Nude pipe in bundle or as your request |
Payment terms | T/T,L/C |
Standard | GB/T3091-2008; BS1837-1985; ASTM A53/A53M-07; ASTM A513-07; ASTM A252; JIS G3444-06; JIS G3452-2010; EN10255; DIN2440 |
Main Usage Relevant Size | 1. Water Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 60-273mm 2. Threaded/Screwed Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.3-165.1mm 3. Structural Steel Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.7-190.7mm 4. Scaffolding Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 48mm 5. Straight Seam Welded Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 48-273mm 6. Steel pipes with a longitudinal ERW Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.3-273.1mm Standard: GB/T 3091-2008 |
Certificate: ISO9001:2008 by international quality system.
Steel material and various physics and chemistry property service.
1. How about the Delivery Time?
The goods will be produced since we getting your deposit by T/T or Your original L/C.
For normal size, some stocks in our factory now, we can supply once you need.
2. What kind of payment does your company support?
T/T, 100% L/C at sight, Cash, Western Union are all accepted.
3. What is the M.O.Q?
Min Order Quantity.
Generally speaking, the MOQ is 10 metric ton per size,
however, we can provide you samples for quality inspection.
4. Do you charge for the samples?
According to our company principle, we just charge for samples, you pay for the freight charge.
However, we will return the samples fees back to you during the next order.
5. How about your Feature and Advantage?
Firstly, we are a 11 years factory, our price is competitive and our quality is the NO.1.
Then we do some special service for export: Thread, Oil Coating, Groovy,
Standard Export Packing, Hydraulic Pressure, Automatic painting, stamping,
Steel material and various physics and chemistry property, zinc ingot element testing service. etc.
6. How to know the Quality Guarantee:
Visit Our factory is the best way to know each other more.
ISO9001:2008 by international quality system Certificate and The Third Inspection can prove our quality.
We will attach some relevant photos via email so show our factory, machine and products for you.
7. Can you tell me your main customers’ information?
That is our customers’ privacy, we should protect their information.
At the same time, please rest assured that your information is also safe here.
- Q:Can steel pipes be used for marine applications?
- Yes, steel pipes can be used for marine applications. Steel pipes have excellent strength and corrosion resistance, making them suitable for various marine environments. They are commonly used in shipbuilding, offshore structures, and underwater pipelines due to their durability and ability to withstand harsh conditions in saltwater.
- Q:How are steel pipes used in the construction of high-rise buildings?
- Steel pipes are commonly used in the construction of high-rise buildings for various purposes, such as structural support, plumbing, and fire protection systems. They provide strength and durability to the building's framework, allowing it to withstand heavy loads and extreme weather conditions. Steel pipes also play a crucial role in carrying water, sewage, and other utilities throughout the building, ensuring efficient functionality. Additionally, they are utilized in the installation of fire sprinkler systems, enhancing the safety measures of the high-rise structure.
- Q:What is the difference between steel pipes and copper-nickel pipes?
- Steel pipes and copper-nickel pipes differ in material composition and properties. Steel pipes are primarily made from iron and carbon, which provide strength and durability. They are suitable for various applications, including plumbing, construction, and industrial purposes. On the other hand, copper-nickel pipes are composed of a combination of copper and nickel, which offer excellent corrosion resistance and thermal conductivity. These pipes are often used in marine environments, desalination plants, and offshore oil and gas industries due to their ability to withstand saltwater corrosion. Overall, the main distinction lies in their composition and specific applications based on their unique properties.
- Q:How are steel pipes protected against external moisture?
- Steel pipes are typically protected against external moisture through various methods such as coating them with corrosion-resistant materials like epoxy or zinc, applying protective tapes or wraps, using cathodic protection systems, or utilizing corrosion inhibitors during the manufacturing process. These measures help to prevent the formation of rust and ensure the longevity and reliability of the steel pipes.
- Q:How can steel pipes be protected from corrosion?
- Steel pipes can be protected from corrosion through various methods. One common method is the application of protective coatings. These coatings act as a barrier between the steel and corrosive elements in the environment. The most widely used protective coating for steel pipes is epoxy, which provides excellent resistance to corrosion. Other coatings such as polyethylene and polyurethane can also be used depending on the specific application and requirements. Another effective way to protect steel pipes from corrosion is by cathodic protection. This technique involves the use of sacrificial anodes or impressed current systems to prevent corrosion. Sacrificial anodes, typically made of zinc or aluminum, are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves to protect the pipes. Impressed current systems, on the other hand, use a direct electrical current to counteract the corrosion process. Regular maintenance and inspection are crucial in the protection of steel pipes from corrosion. Monitoring the condition of the coatings, checking for any signs of damage or deterioration, and promptly addressing any issues can help prevent corrosion from occurring or spreading. Additionally, implementing proper drainage systems to avoid the accumulation of moisture around the pipes can further protect them from corrosion. Lastly, environmental factors should be taken into consideration when protecting steel pipes from corrosion. This includes mitigating exposure to corrosive substances, such as acids or chemicals, and ensuring proper ventilation and airflow to prevent the buildup of moisture and humidity. By implementing a combination of these protective measures, steel pipes can have an extended lifespan and maintain their structural integrity.
- Q:What is the minimum wall thickness for steel pipes?
- The minimum wall thickness for steel pipes depends on several factors, including the intended use of the pipe and the specific industry standards and regulations. In general, the minimum wall thickness is determined by considering factors such as the pipe's diameter, the material strength, and the pressure or load it will be subjected to during operation. For example, in the oil and gas industry, the minimum wall thickness for steel pipes is usually specified by industry standards such as API 5L or ASME B31.3. These standards take into account factors such as the pipe's diameter, the material's yield strength, and the maximum pressure it will be exposed to. In other applications, such as structural or mechanical engineering, the minimum wall thickness for steel pipes is determined based on factors such as the pipe's intended load-bearing capacity, the desired safety factor, and any applicable building codes or regulations. It is important to consult the appropriate industry standards, codes, or regulations to determine the specific minimum wall thickness requirements for steel pipes in a given application.
- Q:What is the maximum temperature that steel pipes can handle?
- The maximum temperature that steel pipes can handle varies depending on the specific grade and type of steel used. However, in general, steel pipes can withstand high temperatures ranging from 750 to 1200 degrees Celsius (1382 to 2192 degrees Fahrenheit).
- Q:What are the different types of connections used with steel pipes?
- There are several types of connections commonly used with steel pipes, including threaded connections, welded connections, flanged connections, and grooved connections.
- Q:Can steel pipes be used for underground steam pipelines?
- Indeed, underground steam pipelines can indeed utilize steel pipes. Given their robust and enduring characteristics, steel pipes are frequently employed for an assortment of pipelines, such as those carrying steam. Their capacity to endure elevated temperatures and pressures renders them suitable for the subterranean transportation of steam. Furthermore, steel pipes exhibit outstanding resistance to corrosion, a crucial feature for subterranean pipelines that encounter moisture and potentially corrosive substances in the soil. In summary, steel pipes represent a dependable and widely embraced option for underground steam pipelines.
- Q:How are steel pipes protected against soil movement?
- Steel pipes are protected against soil movement through various methods such as using casing pipes, employing anchor systems, implementing protective coatings, and utilizing concrete thrust blocks. These measures ensure that the steel pipes remain stable and secure in the event of soil movement.
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High quality Roller pipes from China
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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