Seamless steel tube in complete model of high quality

Seamless steel tube in complete model of high quality System 1

Seamless steel tube in complete model of high quality

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 6000 m.t./month

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4、The Steel Pipe Specification:

Standard	JIS, DIN, ASTM JIS G3445-2006, JIS G3444-2006, JIS G3446-2004, DIN EN 10216-1-2004, DIN EN 10217-1-2005, DIN EN 10305, ASTM A106-2006, ASTM A53-2007, ASTM A789-2001, ASTM A1020-2002, ASTM A179-1990, ASTM A199
Grade	Cr-Mo alloy, Mo, ST35-ST52, Q195-Q345, CrNi alloy 15CrMo, 10CrMo910, 30CrMo, 15Mo3, 16Mo, St37, St52, St42, St45, Q235, Q345, Q195, Q215, Cr17Ni8, 1Cr13Mn9Ni1N
Thickness	2 - 50 mm
Section Shape	Round
Outer Diameter	10 - 900 mm
Secondary Or Not	Non-secondary
Application	Structure Pipe
Technique	EFW
Certification	API
‍‍Surface Treatment	Paint
Special Pipe	API Pipe
Alloy Or Not	Non-alloy

5、FAQ of Square Tube:

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
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

Q: How do you calculate the pipe volume for steel pipes?: To calculate the volume of a steel pipe, you need to know its length and the inner diameter of the pipe. The formula to calculate the volume of a cylindrical shape, like a pipe, is V = πr^2h, where V is the volume, π is a mathematical constant approximately equal to 3.14159, r is the radius of the pipe (which is half of the inner diameter), and h is the length of the pipe. Firstly, measure the inner diameter of the pipe using a measuring tape or a caliper. Divide this value by 2 to obtain the radius. Next, measure the length of the pipe in either inches, feet, or meters. Ensure that you use the same unit of measurement for both the radius and length. Once you have the radius and length, plug them into the formula V = πr^2h. For example, let's say the inner diameter of the steel pipe is 10 inches and the length is 50 feet. First, divide the inner diameter by 2 to find the radius: 10 / 2 = 5 inches. Next, convert the length to inches: 50 feet * 12 inches/foot = 600 inches. Now, plug the values into the formula: V = 3.14159 * 5^2 * 600. Calculating the volume: V = 3.14159 * 25 * 600 = 47,123.85 cubic inches. Therefore, the volume of the steel pipe is approximately 47,123.85 cubic inches.

Q: Can steel pipes be used for plumbing?: Yes, steel pipes can be used for plumbing. Steel pipes are commonly used for plumbing applications due to their strength, durability, and resistance to corrosion. However, other materials such as copper and PVC are also commonly used depending on the specific requirements and preferences of the plumbing system.

Q: How do you calculate the pipe friction loss for steel pipes?: The pipe friction loss for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, flow rate, and fluid properties. This equation considers the pressure drop caused by friction as the fluid flows through the pipe. By solving this equation, the pipe friction loss can be determined.

Q: Can steel pipes be used for oil and gas transportation?: Indeed, steel pipes are capable of being employed for the transportation of oil and gas. In the oil and gas sector, steel pipes are extensively utilized owing to their robustness, longevity, and capacity to withstand high-pressure environments. They are frequently employed for the conveyance of crude oil, natural gas, and related substances across extensive distances. Steel pipes exhibit exceptional resistance to corrosion and are capable of enduring extreme temperatures, thus rendering them suitable for both onshore and offshore applications. Moreover, steel pipes can be easily welded, facilitating the construction of intricate pipeline networks that efficiently transport oil and gas from production fields to refineries and distribution centers.

Q: What is the creep resistance of steel pipes?: The ability of steel pipes to withstand deformation or elongation over time when exposed to high temperatures and constant stress is referred to as their creep resistance. Steel pipes are highly regarded for their exceptional resistance to creep because of the inherent strength and stability of the material. The creep resistance of steel pipes can vary depending on factors like the composition of the alloy, heat treatment, and the conditions in which they are used. Creep is a phenomenon that occurs at elevated temperatures, causing materials to slowly deform under constant stress. In the case of steel pipes, this can be a concern in applications where they are subjected to high temperatures for extended periods, such as in power plants, industrial furnaces, or steam pipelines. The ability to resist creep deformation is crucial to maintain the structural integrity and longevity of the pipes. Steel pipes are often designed and manufactured using alloys with high creep resistance properties, such as chromium-molybdenum (Cr-Mo) steels or nickel-based alloys. These alloys possess excellent mechanical strength, thermal stability, and resistance to oxidation and corrosion, all of which contribute to their superior creep resistance. Moreover, heat treatment processes like quenching and tempering can significantly enhance the creep resistance of steel pipes. These treatments involve controlled heating and cooling cycles to optimize the microstructure of the steel, thereby increasing its resistance to deformation and improving its overall performance at high temperatures. It is important to note that the creep resistance of steel pipes is typically specified by industry standards and codes, such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. These standards define the allowable stress levels and design criteria for different steel pipe applications, ensuring that they meet the necessary safety and performance standards. In summary, steel pipes are renowned for their excellent creep resistance due to their inherent strength, stability, and ability to withstand high temperatures. The specific creep resistance of steel pipes may vary depending on factors such as alloy composition, heat treatment, and operating conditions. Proper design and adherence to industry standards are essential to ensure the desired creep resistance and overall performance of steel pipes in various applications.

Q: How are steel pipes used in underground drainage systems?: Steel pipes are commonly used in underground drainage systems to transport wastewater and stormwater away from buildings and infrastructure. These pipes are durable and resistant to corrosion, making them suitable for underground applications. They are typically used for main sewer lines and stormwater drains, providing a reliable and long-lasting solution for effective drainage.

Q: Can steel pipes be used for underground power transmission?: Indeed, underground power transmission can make use of steel pipes. Due to their resilience, robustness, and resistance to corrosion, steel pipes are extensively employed in underground power transmission systems. These pipes serve as a safeguarding enclosure for power cables, guaranteeing their security and shielding them from potential harm caused by external elements like moisture, soil movements, and potential impacts. Moreover, the use of steel pipes facilitates easy installation, maintenance, and repair of the power transmission system. Additionally, their ability to withstand high pressure and temperature renders them suitable for conveying the high voltage electricity essential for power transmission. All in all, steel pipes are a dependable and effective choice for underground power transmission.

Q: What are the different types of steel pipe coatings for offshore applications?: There are several types of steel pipe coatings that are commonly used for offshore applications. Some of the most common types include fusion bonded epoxy (FBE) coating, three-layer polyethylene (3LPE) coating, and three-layer polypropylene (3LPP) coating. FBE coating provides excellent corrosion resistance and is often used in subsea pipelines. 3LPE coating combines fusion bonded epoxy with an adhesive and a high-density polyethylene layer, offering superior mechanical protection and corrosion resistance. 3LPP coating, on the other hand, combines fusion bonded epoxy with an adhesive and a polypropylene layer, providing enhanced resistance to high temperatures and chemicals. These coatings help to protect steel pipes from corrosion, abrasion, and other environmental factors, ensuring their durability in offshore environments.

Q: How are steel pipes used in automotive manufacturing?: Automotive manufacturing extensively employs steel pipes for a multitude of purposes. The exhaust system represents one of the principal functions of steel pipes in this industry. In vehicles, the exhaust system is accountable for securely eliminating harmful gases generated during the combustion process. Steel pipes are employed in fabricating the exhaust manifold, which collects exhaust gases from the engine cylinders and directs them towards the exhaust pipe. Additionally, steel pipes are also utilized in constructing the chassis and frame of vehicles. The chassis offers structural support and aids in upholding the overall strength and stability of the vehicle. Due to their exceptional strength and durability, steel pipes are the optimal choice for manufacturing the chassis and frame. These pipes are frequently welded together to form a rigid and robust structure capable of withstanding diverse forces and impacts. Furthermore, steel pipes find application in the suspension system of automobiles. The suspension system is responsible for delivering a comfortable and smooth ride by absorbing shocks and vibrations. Steel pipes are employed in manufacturing suspension components such as control arms, tie rods, and sway bars. These components contribute to maintaining the stability, handling, and overall performance of the vehicle. Moreover, steel pipes are utilized in the fuel system of automobiles. They are responsible for transporting fuel from the fuel tank to the engine. These pipes necessitate resistance to corrosion and possess high tensile strength to guarantee the safe and efficient delivery of fuel. In conclusion, steel pipes play a pivotal role in automotive manufacturing. They are utilized in diverse applications including the exhaust system, chassis and frame construction, suspension system, and fuel system. The incorporation of steel pipes in these areas ensures the durability, strength, and performance of vehicles while simultaneously upholding safety and efficiency.

Q: How are steel pipes used in sewage systems?: Steel pipes are commonly used in sewage systems for their strength, durability, and resistance to corrosion. These pipes are used to transport sewage and wastewater from homes, businesses, and industrial facilities to treatment plants or disposal sites. They are ideal for underground installations due to their ability to withstand high pressure and the weight of the surrounding soil. Additionally, steel pipes can be welded together, providing a seamless and leak-proof system that ensures the safe and efficient transportation of sewage.

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