Seamless Hot Rolled Steel Pipe > 114.3

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: -

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Specifications

1. OD 21MM-1066MM, WT 2MM-60MM
2. certificate: ISO, API
3. Strength: large diameter thick wall seamless pipe
4. BE, PE.

Carbon Steel Seamless Pipes
OD	21.3mm-1066.8mm(1/2”-42”)
WT	2mm-60mm
Length	Random Length: 3.5m-12m, or fixed length 5.8m or as the customer’s requirement.
Standard	ASTM A53, ASTM A106, API 5L, DIN 17175, GOST8731/8732, G3457/G3452 etc.
Material	Q235B, 10#,20#,45#, 16Mn, 15MnV. A53B, A106B, API5L B, A192, A179C, A213-T12, A213-T22, A335-P1, A335-P2, A333 ST37, ST33, ST37-2, ST35.8 ST42 etc.
Certificate	API certificate and ISO certificate.
Surface	Rust remove, black painting, antirust oil, varnish, 3PE, hot-dip galvanized etc.
Package	By bundles, plastic caps or steel caps, woven, wooden cases or as requirement.
Capability	6000tons/month.
End	BE/PE.
Advantage	Big diameter and thick wall pipes. Best price with good quality. The partner you can trust. Good service and very patient.

Seamless steel pipe
Alloy pipe	Cr5Mo(P5, STFA25, T5) 15CrMo(P11, P12, STFA22) 13CrMo44 12Cr1MoV P22 (10CrMo 910) T91, P91, P9, T9 Wb36	GB5310-95 GB9948-88 ASTM335/A335M ASTM213/213M DIN17175-79 JISG3467-88 JISG3458-88	*16-8242-100**	The seamless steel pipe features resistance to high pressure, high/low temperature and corrosion and is used in the industries of petroleum, chemical engineering and electric power as well as boiler
High-pressure boiler pipe	20G, A106, ST45.8/	GB5310-95 ASTMA106-99 DIN17175-79	*14-6302-80**	Temperature-resistant seamless steel pipe for high-pressure boiler
High-pressure seamless pipe for petroleum cracking and fertilizer making equipments	20, 12CrMo, 15CrMo	GB9948-88	*10-5301.5-36**	Boiler price for refinery, heat-exchanging pipe, seamless steel pipe for pipeline
	20, 16Mn, Q345	GB6479-2000	*18-5303-40**	Fertilizer making equipment and pipe line
Low and medium pressure boiler pipes	10, 20	GB3087-1999	*10-5302-40**	Over-heat pipe for low and medium-pressure boiler, boiling water pipe, locomotive smoke pipe(big and small)
Fluid pipe	20, Q345	GB/T8163-1999	*8-6301.0-40**
Structural pipe	10,20,35,45, 16Mn, Q345B	GB/T8162-1999	*6-10201.5-100**
Line pipe	Grade B	API	*60-6301.5-40**	Carrying gas, water or oil in the industries of petroleum and natural gas
Hydraulic prop pipe	27SiMn	GB/T17396-1998	*70-3779-40**
Ship pipe	410	GB/T5312-1999	*14-4261.5-45**	Pipes for ship, boiler and over-heater

FAQ of Seamless Pipe:

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. 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.

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.

‍‍Seamless Pipe Images：

Seamless Hot Rolled Steel Pipe > 114.3

Q: What are the factors that affect the pressure rating of steel pipes?: There are several factors that can affect the pressure rating of steel pipes. These include the material and grade of the steel used, the wall thickness of the pipe, the diameter of the pipe, the temperature at which the pipe will be operating, and the type of fluid or gas being transported through the pipe. Additionally, factors such as corrosion, external loads, and installation methods can also impact the pressure rating of steel pipes.

Q: Can steel pipes be used for shipbuilding?: Yes, steel pipes can be used for shipbuilding. Steel is a commonly used material in the construction of ships due to its strength, durability, and resistance to corrosion. Steel pipes are used for various purposes in shipbuilding, including the construction of the ship's hull, superstructure, and various internal systems such as plumbing, ventilation, and fuel lines. The strength and structural integrity of steel pipes make them suitable for withstanding the harsh conditions at sea, such as high pressures, extreme temperatures, and exposure to saltwater. Additionally, steel pipes can be easily welded and shaped to meet the specific requirements of shipbuilding, making them a versatile choice for this industry.

Q: What are steel pipes used for?: Steel pipes find extensive use in a diverse range of industries, serving various purposes. Among the most prevalent applications, steel pipes are commonly employed for the transportation of fluids and gases. In oil and gas pipelines, for instance, steel pipes are utilized to convey oil, natural gas, and other petroleum products across long distances. Additionally, steel pipes are utilized in domestic and industrial water supply systems. Within the construction industry, steel pipes play a pivotal role in structural tasks, offering exceptional strength and durability. Consequently, steel pipes are highly suitable for the construction of buildings, bridges, and other infrastructure projects. Due to their capacity to withstand heavy loads and provide stability, steel pipes are also employed in the construction of high-rise buildings. Moreover, the manufacturing industry heavily relies on steel pipes. These pipes are utilized in the production of machinery, equipment, and vehicles. In bulk handling systems, steel pipes are commonly employed to transport materials like coal, ore, and grain. Furthermore, steel pipes contribute to the manufacturing of automotive components such as exhaust systems, chassis, and suspension parts. In the energy sector, steel pipes serve a multitude of purposes. For instance, they are employed in power plants for the transportation of steam and hot water, as well as in the production and distribution of electricity. Additionally, steel pipes are utilized in the renewable energy sector, particularly in the construction of wind turbine towers and solar panel frameworks. In addition to these primary applications, steel pipes are also utilized in plumbing systems, irrigation systems, and the construction of fences and railings. Their versatility allows for customization, meeting specific requirements in terms of size, thickness, and coating. Ultimately, steel pipes fulfill an indispensable role across numerous industries, facilitating the transport of fluids, the construction of infrastructure, and the manufacturing of various products. Their strength, durability, and adaptability make them a preferred choice among engineers and professionals in various fields.

Q: How are steel pipes used in the agriculture sector?: Steel pipes are commonly used in the agriculture sector for various purposes, such as irrigation systems, drainage systems, and structural support for farm buildings and infrastructure. They are also used for conveying water, chemicals, and other fluids, as well as for constructing fencing and livestock enclosures. Moreover, steel pipes are utilized in the construction of machinery and equipment essential for farming operations.

Q: How do you protect steel pipes from rusting?: Steel pipes can be protected from rusting by applying a protective coating such as paint or zinc coating. Additionally, using corrosion inhibitors, maintaining proper drainage, and keeping the pipes dry can help prevent rust formation. Regular inspection and maintenance are also crucial to identify and address any potential issues before they escalate.

Q: What are the different methods of pipe support for steel pipes?: There are several different methods of pipe support for steel pipes, each designed to ensure the stability, alignment, and protection of the pipes. Some of the most commonly used methods include: 1. Pipe Hangers: These are devices that suspend or support the weight of the pipe from above. They are typically made of metal and can be adjustable or fixed, allowing for easy installation and maintenance. Pipe hangers can be used in various configurations, such as clevis hangers, beam clamps, or pipe rollers, depending on the specific application. 2. Pipe Shoes: These are supports that are directly attached to the bottom of the pipe, providing a stable resting surface. Pipe shoes are usually made of steel or other durable materials and are designed to prevent pipe movement, absorb vibrations, and distribute the weight evenly. They are commonly used in applications where pipes are subjected to high temperatures or where there is a need for thermal expansion. 3. Pipe Clamps: These are devices used to hold or fasten the pipes together or to a structure. Pipe clamps are typically made of metal and come in various sizes and designs to accommodate different pipe diameters and configurations. They provide support and prevent the pipes from sagging or moving, especially in areas where there are changes in direction or elevation. 4. Pipe Racks: These are structures that are specifically designed to support multiple pipes in an organized and secure manner. Pipe racks are commonly used in industrial settings, such as refineries or power plants, where large quantities of pipes need to be stored or supported. They are typically made of steel and can be customized to accommodate different pipe sizes and layouts. 5. Pipe Guides: These are devices that help guide and control the movement of the pipe, especially during thermal expansion or contraction. Pipe guides are typically fixed to the structure and provide a sliding surface to allow for the longitudinal movement of the pipe. They are commonly used in applications where there are changes in temperature, such as in steam or hot water systems. These are just a few of the many methods of pipe support for steel pipes. The choice of support method depends on factors such as pipe size, weight, temperature, and the specific requirements of the application. It is crucial to select the appropriate support method to ensure the longevity and integrity of the pipes and to prevent any potential issues such as sagging, misalignment, or failure.

Q: What are the common standards for manufacturing steel pipes?: The common standards for manufacturing steel pipes include the American Society for Testing and Materials (ASTM) standards, the International Organization for Standardization (ISO) standards, and the American National Standards Institute (ANSI) standards. These standards cover various aspects such as material composition, mechanical properties, dimensions, testing procedures, and quality control requirements to ensure the consistency and reliability of steel pipes.

Q: What is the role of steel pipes in the chemical manufacturing industry?: Steel pipes play a crucial role in the chemical manufacturing industry as they are widely used for transporting various chemicals, gases, and liquids. These pipes are highly durable, resistant to corrosion, and can withstand high temperatures and pressures, making them ideal for handling hazardous substances. Additionally, steel pipes ensure the integrity and safety of the chemical manufacturing process by preventing leaks, contamination, and loss of product.

Q: What are the different types of steel pipe valves?: There are several different types of steel pipe valves that are commonly used in various industries and applications. Here are some of the most common types: 1. Gate valves: These valves are designed to control the flow of fluid by lifting or lowering a gate or wedge that obstructs the flow path. They provide a tight seal when closed and are commonly used in applications that require a full flow or complete shut-off. 2. Globe valves: Globe valves have a globe-shaped body and a movable plug or disc that regulates the flow of fluid. They offer good throttling capabilities and are used in applications where precise control of flow is required. 3. Ball valves: Ball valves use a rotating ball with a hole in it to control the flow of fluid. When the hole is aligned with the pipe, the valve is fully open, and when the hole is perpendicular to the pipe, the valve is closed. Ball valves are durable, reliable, and commonly used in applications that require quick and easy shut-off. 4. Check valves: Check valves allow fluid to flow in only one direction and prevent backflow. They are often used to prevent damage to pumps, compressors, and other equipment by preventing reverse flow. 5. Butterfly valves: Butterfly valves have a disc that rotates within the pipe to control the flow of fluid. They are lightweight, compact, and offer a quick shut-off. Butterfly valves are commonly used in large-scale applications such as water treatment and HVAC systems. 6. Plug valves: Plug valves have a cylindrical or conical plug that rotates within the valve body to control flow. They are simple in design, easy to operate, and offer reliable shut-off capabilities. Plug valves are commonly used in applications that require frequent operation and high pressure ratings. 7. Diaphragm valves: Diaphragm valves use a flexible diaphragm to control the flow of fluid. When the diaphragm is pressed against the valve seat, the flow is blocked, and when the diaphragm is lifted, the flow is allowed. Diaphragm valves are commonly used in applications that require a sterile or hygienic environment. These are just a few examples of the different types of steel pipe valves available in the market. The choice of valve depends on the specific application requirements, such as flow rate, pressure, temperature, and the type of fluid being transported.

Q: Can steel pipes be used for conveying liquids and gases?: Indeed, the utilization of steel pipes extends to the conveyance of both liquids and gases. These pipes find widespread application across a multitude of industries, including oil and gas, water supply, plumbing, and industrial processes. Their commendable attributes encompass robustness, longevity, and resistance to corrosion. Consequently, steel pipes possess the capacity to withstand elevated pressure and temperature, rendering them ideal for the transportation of an extensive array of liquids and gases such as water, oil, natural gas, steam, and chemicals. Furthermore, the convenience of welding or threading steel pipes together facilitates effortless installation and maintenance procedures.

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