• Seamless steel tube for transmission of fluids System 1
Seamless steel tube for transmission of fluids

Seamless steel tube for transmission of fluids

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
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Standard:
GB/T8163 Chinese national standard
Application:
General seamless steel tubes for conveying fluids
Models of major steel tubes:
10.20,Q345,etc.

Diamensional tolerances:

Types of steel tubes

Outer diameter

Wall thickness

Cold-rolled tubes
Tube sizes(mm)

Tolerances(mm)

Tube sizes (mm)

Tolerances(mm)

>30~50

±0.3

≤30

±10%

>50~219

±0.8%

Hot-rolled tubes

>219

±1.0%

>20

±10%

Mechanical properties:

Standard codes
Models of steel tubes

Tensite strength(MPa)

Yield strength(MPa)

Elongation(%)

GB/T8163

10

335~475

≥205

≥24

20

410~550

≥245

≥20

Q345

490~665

≥325

≥21

Chemical composition:

Standard codes
Models of steel tubes

Chemical compositions(%)

C

Si

Mn

P

S

Cr

Ni

Cu

GB/T8163

10

0.07~0.14

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.15

≤0.25

≤0.25

20

0.17~0.24

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.25

≤0.25

≤0.25

Q345

0.12~0.20

0.20~0.55

1.20~1.60

≤0.045

≤0.045

/

/

/


Q: How do steel pipes compare to other materials, such as PVC or copper?
Steel pipes are generally considered to be stronger and more durable compared to materials like PVC or copper. While PVC pipes are lightweight and easy to install, they are not as strong as steel and can be more prone to cracking or breaking. Copper pipes, on the other hand, are known for their corrosion resistance and are commonly used for plumbing systems. However, steel pipes have the advantage of being highly resistant to extreme temperatures, pressure, and damage, making them suitable for a wide range of applications, including industrial and commercial use.
Q: How do steel pipes compare to other materials like PVC or copper?
There are several advantages to using steel pipes compared to materials like PVC or copper. Firstly, steel pipes are known for their strength and durability. They can withstand high pressure and extreme temperatures without cracking or bending, making them ideal for heavy-duty applications such as industrial piping systems or underground installations. Secondly, steel pipes have excellent corrosion resistance. Unlike copper pipes that can corrode over time, steel pipes are typically coated with anti-corrosive materials like zinc or epoxy. This protective layer prevents rust and ensures a longer lifespan for the pipes. Furthermore, steel pipes offer superior fire resistance compared to PVC or copper. They are non-combustible and can withstand high temperatures for extended periods without deforming or releasing toxic gases. This makes steel pipes a safer option for applications where fire hazards are a concern. In terms of cost, while steel pipes may initially be more expensive than PVC, they offer better long-term value due to their durability and longevity. On the other hand, copper pipes can be quite expensive and are susceptible to theft due to their scrap value. Lastly, steel pipes are highly versatile and can be used in various applications such as water supply, sewage systems, gas pipelines, and oil refineries. They can handle high volumes of fluid with ease and are resistant to external factors like UV rays or physical impacts. Overall, steel pipes are a reliable and efficient choice for many industries and applications, offering strength, durability, corrosion resistance, fire resistance, and versatility that sets them apart from materials like PVC or copper.
Q: How are steel pipes used in wastewater treatment plants?
Steel pipes are extensively used in wastewater treatment plants for various purposes such as transporting wastewater, carrying chemicals, and supporting infrastructure. These pipes are durable, corrosion-resistant, and can withstand high pressure, making them ideal for conveying wastewater and other fluids within the plant. Additionally, steel pipes are often used in the construction of wastewater treatment plant structures and support systems due to their strength and longevity.
Q: Can steel pipes be used for irrigation pivot systems?
Indeed, irrigation pivot systems can indeed utilize steel pipes. Steel pipes are commonly employed in irrigation systems owing to their robustness, longevity, and resistance to corrosion. They possess the ability to endure the water flow's pressure and stress within pivot systems, exhibiting a decreased likelihood of leaks or cracks when contrasted with alternative materials. Moreover, steel pipes offer convenience as they can be effortlessly welded or threaded together, facilitating the selection of various lengths and configurations for irrigation systems. Nonetheless, it is crucial to take into account the precise requirements of the irrigation pivot system and seek guidance from professionals to ascertain the suitability of the chosen steel pipes for the specific application.
Q: How do steel pipes handle water hammer in high-rise buildings?
Steel pipes in high-rise buildings handle water hammer by absorbing the sudden pressure surges caused by the rapid opening and closing of valves. The strong and durable nature of steel pipes allows them to withstand the impact of water hammer without experiencing significant damage or ruptures. Additionally, the flexibility of steel pipes helps to dissipate the kinetic energy generated by the water hammer, reducing the risk of pipe bursts and ensuring the smooth flow of water throughout the building.
Q: What are the different types of steel pipe coatings for drinking water pipelines?
There are several types of steel pipe coatings used for drinking water pipelines, including fusion bonded epoxy (FBE), polyethylene (PE), and polyurethane (PU) coatings. Each coating offers different advantages, such as corrosion resistance, durability, and smoothness, to ensure the safety and quality of drinking water.
Q: Can steel pipes be used for underground water supply pipelines?
Yes, steel pipes can be used for underground water supply pipelines. Steel pipes are commonly used for water supply systems due to their durability, strength, and resistance to corrosion. They can withstand high pressure and are capable of carrying large volumes of water. Additionally, steel pipes are also available in various sizes and thicknesses, allowing for flexibility in designing and installing underground water supply pipelines. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and maintain the quality of the water being transported. Regular inspections and maintenance should also be conducted to prevent any potential issues with the steel pipes.
Q: Is the seamless steel pipe used in the market hot or cold drawn?
Small and medium-sized cold drawn and hot-rolled are many, large caliber is hot rolling, cold rolled spot less.
Q: How are steel pipes used in the transportation of liquids and gases?
Steel pipes are used in the transportation of liquids and gases due to their durability, strength, and resistance to corrosion. They are commonly used in industries such as oil and gas, water supply, and chemical processing. Steel pipes ensure the safe and efficient movement of fluids over long distances, as they can withstand high pressure and extreme temperatures. Additionally, their seamless construction minimizes the risk of leaks, making them essential for transporting various liquids and gases.
Q: Can steel pipes be used for offshore oil and gas platforms?
Offshore oil and gas platforms can utilize steel pipes, as they are known for their durability, strength, and ability to withstand harsh marine conditions. These pipes are typically constructed from high-quality steel alloys, capable of enduring the immense pressures and temperatures of offshore drilling and production activities. Moreover, steel pipes offer versatility and easy welding, facilitating the creation of intricate pipeline networks on offshore platforms. Furthermore, protective coatings like epoxy or anti-corrosion coatings can be applied to steel pipes, bolstering their resistance to corrosion and extending their lifespan in the offshore environment. In summary, steel pipes are a reliable and extensively employed option for transporting oil and gas on offshore platforms.

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