SPIRAL STEEL PIPE14‘ 16’‘ 18’‘ 20’‘ 24’’LARGE DIAMETER PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 3000 m.t./month

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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< span="">	<0.045< span="">	<0.030< span="">	>195	315-430	32-33
Q215	0.09-0.15	0.25-0.55	<0.05< span="">	<0.045< span="">	<0.030< span="">	>215	335-450	26-31
Q235	0.12-0.20	0.30-0.70	<0.045< span="">	<0.045< span="">	<0.030< span="">	>235	375-500	24-26
Q345	<0.20< span="">	1.0-1.6	<0.040< span="">	<0.040< span="">	<0.55< span="">	>345	470-630	21-22

Q:Can steel pipes be used for chemical refineries?: Chemical refineries can utilize steel pipes for their operations. Steel pipes are frequently employed in chemical refineries because of their exceptional strength, long-lasting nature, and resistance to corrosion. Given the harsh conditions present in a chemical refinery, including exposure to corrosive chemicals and extreme temperatures, it is necessary to employ materials that can endure such circumstances. Steel pipes possess the capability to withstand these challenges and are often preferred for their ability to securely and efficiently transport diverse fluids and gases. Furthermore, the weldability of steel pipes permits easy installation and maintenance within intricate refinery systems. All in all, steel pipes are a fitting choice for chemical refineries due to their durability, ability to resist corrosion, and compatibility with the demanding conditions encountered in this industry.

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:What is the composition of steel pipes?: Steel pipes are primarily composed of iron and carbon, with small amounts of other elements such as manganese, silicon, and traces of sulfur and phosphorus.

Q:RC is it welded steel pipe or galvanized steel pipe?: Common pipelines in construction are as follows:SC: welded steel pipeTC: wire tubes, thin steel tubesPC: rigid plastic pipesCT: cable trayCP: metal hoseSR: steel grooveRC: water gas pipe

Q:How are steel pipes used in the construction of oil and gas pipelines?: Steel pipes are commonly used in the construction of oil and gas pipelines due to their high strength, durability, and resistance to corrosion. These pipes are employed to transport crude oil and natural gas from extraction sites to refineries and distribution centers. They provide a reliable and efficient means of transporting these valuable resources over long distances, ensuring a safe and secure supply of energy. Additionally, steel pipes are capable of withstanding high pressure and extreme temperature conditions, making them suitable for the demanding environment of oil and gas transportation.

Q:Are steel pipes suitable for use in hydropower plants?: Yes, steel pipes are suitable for use in hydropower plants. Steel pipes offer excellent durability, strength, and resistance to corrosion, making them ideal for transporting water or other fluids in hydropower systems. Additionally, steel pipes can withstand high pressure and provide efficient flow rates, ensuring reliable and efficient operation of the hydropower plant.

Q:How do steel pipes handle seismic expansion joints?: Steel pipes handle seismic expansion joints by allowing for movement and flexibility. These pipes are designed to withstand the forces caused by seismic activity, such as earthquakes, by accommodating expansion and contraction without causing damage to the overall structure. The joints in steel pipes are often equipped with specialized components, such as bellows or flexible couplings, that can absorb the movement and prevent excessive stress on the pipeline. This ensures the integrity and safety of the pipeline system during seismic events.

Q:What are the future trends in steel pipe manufacturing?: Some future trends in steel pipe manufacturing include the adoption of advanced technologies such as automation and robotics, the development of high-performance and sustainable materials, the implementation of efficient and eco-friendly production processes, and the integration of digitalization and data analytics for improved quality control and supply chain management. Additionally, there is a growing focus on the development of specialized pipes for specific industries such as oil and gas, construction, and automotive, as well as an increased emphasis on product customization and tailored solutions to meet the evolving needs of customers.

Q:Can steel pipes be used for underground fuel storage tanks?: Yes, steel pipes can be used for underground fuel storage tanks. Steel pipes are commonly used for various applications, including underground storage tanks for fuel. They are strong, durable, and resistant to corrosion, making them suitable for long-term storage of fuels such as gasoline, diesel, and oil. Additionally, steel pipes can be easily welded together to create a seamless and secure tank structure. However, it is important to ensure that the steel pipes used for underground fuel storage tanks are properly coated with corrosion-resistant materials to protect them from any potential damage caused by exposure to moisture or the chemicals present in the fuel. Regular inspection and maintenance are also necessary to ensure the integrity of the tank and prevent any leaks or environmental hazards.

Q:How are steel pipes used in the renewable energy sector?: Steel pipes are commonly used in the renewable energy sector for various purposes, primarily in the construction and installation of infrastructure for wind and solar energy projects. Steel pipes are used to support and anchor wind turbine towers, as well as to transport compressed air or hydraulic fluid for the operation of wind turbines. They are also utilized in the construction of solar panel frameworks, providing stability and durability. Additionally, steel pipes are used in geothermal energy projects for the extraction and transportation of hot water or steam from underground sources to power plants. Overall, steel pipes play a crucial role in enabling the efficient and reliable operation of renewable energy systems.

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