CNBM SPIRAL STEEL PIPE 3600MM

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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: Can steel pipes be used for underground stormwater drainage?: Yes, steel pipes can be used for underground stormwater drainage. Steel pipes are durable and have a high strength-to-weight ratio, making them suitable for underground applications. They can withstand heavy loads and resist corrosion, ensuring long-term performance in stormwater drainage systems. Additionally, steel pipes can be easily welded, allowing for customization and flexibility in the design and installation process. However, it is important to ensure proper corrosion protection, such as applying a protective coating or using corrosion-resistant alloys, to prevent degradation over time. Regular maintenance and monitoring are also recommended to ensure the pipes remain in good condition and continue to effectively drain stormwater.

Q: How are steel pipes used in hydroelectric power plants?: Steel pipes are used in hydroelectric power plants to facilitate the transportation of water from the reservoir to the turbines. These pipes are essential for maintaining a steady flow of water, which is crucial for generating electricity through the rotation of turbines. Additionally, steel pipes are employed in the construction of penstocks, which are large pipes directing water towards the turbines, ensuring efficient energy production in hydroelectric power plants.

Q: What is the difference between steel pipes and plastic pipes?: The main difference between steel pipes and plastic pipes lies in their material composition. Steel pipes are made from a durable and strong metal alloy, while plastic pipes are composed of various types of plastic polymers. This difference in materials leads to variations in their properties and usage. Steel pipes are known for their high strength, resistance to extreme temperatures and pressures, and longevity, making them suitable for applications requiring robustness, such as in industrial settings or underground pipelines. On the other hand, plastic pipes are lightweight, flexible, and corrosion-resistant, making them ideal for plumbing, irrigation, and other non-industrial applications. Additionally, plastic pipes are easier to install and handle due to their lighter weight and flexibility compared to steel pipes.

Q: Is the same specification seamless steel pipe more expensive than welded pipe?: Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials.

Q: How do you calculate the pipe flow rate for steel pipes?: In order to calculate the flow rate of steel pipes, one must take into account various factors. Initially, the inside diameter of the pipe, which is commonly represented as D, needs to be determined. Subsequently, the length of the pipe, denoted as L, should be measured. Furthermore, one must be aware of the pressure drop, ΔP, across the pipe and the density of the fluid, ρ. Once all this information is obtained, either the Darcy-Weisbach equation or the Hazen-Williams equation can be utilized to calculate the flow rate. The Darcy-Weisbach equation is typically employed for pipes with turbulent flow, whereas the Hazen-Williams equation is commonly used for pipes with laminar flow. For the Darcy-Weisbach equation, the formula is as follows: Q = (π/4) * D^2 * √(2ΔP/ρ) Here, Q denotes the flow rate in cubic meters per second, D represents the inside diameter of the pipe in meters, ΔP signifies the pressure drop across the pipe in pascals, and ρ stands for the fluid density in kilograms per cubic meter. On the other hand, for the Hazen-Williams equation, the formula is as follows: Q = C * (D^2.63) * (ΔP^0.54) * (L^0.63) In this case, Q represents the flow rate in cubic meters per second, D denotes the inside diameter of the pipe in meters, ΔP signifies the pressure drop across the pipe in pascals, L represents the length of the pipe in meters, and C represents the Hazen-Williams coefficient, which relies on the roughness of the pipe. To ensure an accurate calculation of the pipe flow rate, it is imperative to maintain consistent units of measurement throughout the calculation. Additionally, precise measurements of the inside diameter, length, pressure drop, and fluid density are crucial in obtaining reliable results.

Q: What's the difference between hot dip galvanizing and cold galvanizing? Which kind of galvanizing method is good?: Cold galvanizing refers to the zinc plating, the coating is thinner, corrosion resistance is slightly worse, variable color. Environmental pollution.Hot dip galvanized by molten zinc ingots, the coating thickness can be adjusted, good corrosion resistance, and subsequent passivation, can be used for outdoor rust, long service life, some up to 20 years.

Q: How to make the internal tooth of the steel pipe?: Cylindrical thread can be used, if the tube is too long, you may consider a short tube with thread, and then welded to the long tube.Taper thread is more difficult to use than ordinary vehicle, and the tap is generally considered. The tap can be clamped on the tailstock.

Q: What are the different methods of pipe joining using steel pipes?: Some of the different methods of pipe joining using steel pipes include butt welding, socket welding, threaded connections, and flange connections.

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.

Q: How are steel pipes used in the manufacturing of pulp and paper mills?: Steel pipes are commonly used in the manufacturing of pulp and paper mills for various purposes such as transporting water, steam, chemicals, and other fluids throughout the facility. These pipes provide a durable and reliable solution for conveying materials and ensuring efficient operations in the pulp and paper industry.

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