SPIRAL STEEL PIPE 16‘‘-48’‘

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Loading Port:: China Main Port

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Packaging & Delivery

Packaging Detail:	standard export packing or as customer's requirement
Delivery Detail:	within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard: SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness: 3.0mm-30mm

4.Outer diameter: φ168mm-3020mm

5,Length: 5m-12m or as your requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-q345 Material Steel Pipe's Materials

Elements Material	Chemical Compsition%					Mechanical Property
	C%	Mn%	S%	P%	Si%	Yield Point (Mpa)	Tensile Strength(Mpa)	Elongation (%)
Q195	0.06-0.12	0.25-0.50	<0.050	<0.045	<0.030	>195	315-430	32-33
Q215	0.09-0.15	0.25-0.55	<0.05	<0.045	<0.030	>215	335-450	26-31
Q235	0.12-0.20	0.30-0.70	<0.045	<0.045	<0.030	>235	375-500	24-26
Q345	<0.20	1.0-1.6	<0.040	<0.040	<0.55	>345	470-630	21-22

Q: How do steel pipes compare to other materials in terms of cost?: Steel pipes are generally more cost-effective compared to other materials, as they offer a combination of durability, strength, and affordability. While initial costs may vary depending on the specific type and size of the pipe, steel pipes are often more economical in the long run due to their longevity and low maintenance requirements. Additionally, steel pipes are readily available and widely used in various industries, making them a cost-efficient choice for many applications.

Q: Can steel pipes be bent or curved?: Yes, steel pipes can be bent or curved using specialized equipment and techniques such as pipe bending machines or hydraulic bending.

Q: What is the difference between black steel pipes and galvanized steel pipes?: The main difference between black steel pipes and galvanized steel pipes lies in their coating. Black steel pipes are uncoated and have a dark, iron oxide layer on their surface, while galvanized steel pipes are coated with a layer of zinc to protect against corrosion. This zinc coating gives galvanized pipes a shiny, silver appearance and makes them more resistant to rust and other environmental factors.

Q: What is the standard length of steel pipes?: The standard length of steel pipes varies depending on the industry and application. However, common standard lengths for steel pipes range from 18 to 22 feet, with some variations based on specific requirements or international standards.

Q: Will the steel tube dance?: The steel tube dance tube has a rotating steel tube and a fixed steel tube, so that different types of steel pipe can be chosen according to the type of pipe dance performed by the dancer.

Q: Can steel pipes be used for water distribution networks?: Yes, steel pipes can be used for water distribution networks. Steel is a durable and strong material that can withstand high water pressure and provide a long-lasting solution for transporting water in distribution networks. However, it is important to properly coat the steel pipes with suitable materials to prevent corrosion and ensure the safety and quality of the water being distributed.

Q: What is the purpose of pipe flanges in steel pipes?: The purpose of pipe flanges in steel pipes is to provide a connection point between two pipe sections, allowing for easy assembly, disassembly, and maintenance of the pipeline. Flanges also help to create a leak-proof seal, enhance the strength and stability of the joint, and provide flexibility for expansion and contraction of the pipes.

Q: What are the different types of steel pipe bends?: There are several types of steel pipe bends, including long radius bends, short radius bends, and induction bends. Long radius bends have a larger radius and are used when a gentle bend is required. Short radius bends have a smaller radius and are used when a more abrupt bend is needed. Induction bends are created using a heating process to achieve specific bend angles and radii.

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: How are steel pipes used in the construction of power transmission lines?: Due to their exceptional strength, durability, and versatility, steel pipes are commonly utilized in the construction of power transmission lines. Throughout the project, these pipes serve various purposes that contribute to the overall efficiency and reliability of the power transmission system. One primary application of steel pipes in power transmission line construction involves the installation of transmission towers. These pipes function as structural components, providing support for the transmission lines and maintaining their alignment. The high strength of steel ensures that the towers can withstand the weight of the transmission lines, as well as external forces like wind and ice loads. Additionally, steel pipes offer excellent resistance against corrosion, which is vital for ensuring the longevity of the transmission tower structures. Apart from tower construction, steel pipes are also utilized in underground transmission lines. These pipes act as conduits for the cables, safeguarding them from external elements and potential damage. Steel pipes are particularly advantageous in this application due to their ability to resist soil movement, withstand high pressure, and provide a secure pathway for the power cables. Moreover, the durability of steel ensures the integrity and longevity of the underground transmission lines, reducing maintenance needs and enhancing the overall reliability of the power transmission system. Furthermore, steel pipes are employed in the construction of foundations and anchors for transmission towers. These pipes are driven deep into the ground to offer stability and support to the towers. The inherent strength and rigidity of steel pipes make them ideal for this purpose, as they can withstand heavy loads and ensure the stability of the transmission towers even in adverse weather conditions. In conclusion, steel pipes play a critical role in power transmission line construction by providing structural support, protecting cables, and ensuring the overall reliability and efficiency of the transmission system. The exceptional strength, durability, and resistance to corrosion make steel pipes the ideal choice for power transmission line construction projects.

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