SPIRAL CARBON STEEL PIPE 32’‘-48'' System 1

SPIRAL CARBON STEEL PIPE 32’‘-48'' System 2

SPIRAL CARBON STEEL PIPE 32’‘-48''

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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 are steel pipes used in the construction of wastewater treatment plants?: Steel pipes are commonly used in the construction of wastewater treatment plants for various purposes, such as transporting and distributing water, chemicals, and sludge within the facility. They are also used for constructing the main drainage systems, including sewer lines, stormwater drains, and effluent pipes, ensuring efficient and reliable flow of wastewater. Additionally, steel pipes are utilized for constructing the structural framework of treatment units, such as settling tanks, clarifiers, and aeration systems, providing stability and durability to withstand the harsh conditions of wastewater treatment processes.

Q: How do steel pipes handle chemical exposure?: Steel pipes are highly resistant to chemical exposure due to their inherent corrosion-resistant properties. The steel used in pipes is often coated with protective layers or made from stainless steel, which makes them capable of withstanding the effects of various chemicals without deteriorating or reacting. This allows steel pipes to handle chemical exposure effectively and maintain their structural integrity over time.

Q: How are steel pipes connected to other plumbing components?: Steel pipes are commonly connected to other plumbing components through various methods, depending on the specific application and requirements. The most common methods of connecting steel pipes to other plumbing components include threading, welding, and using mechanical fittings. Threading is a process where the ends of the steel pipes are cut and grooves are created on the outer surface to form a threaded connection. This allows the pipes to be screwed into fittings such as elbows, tees, or couplings. Threaded connections are often used in smaller diameter pipes and low-pressure applications. Welding is another commonly used method to connect steel pipes. It involves heating the ends of the pipes and joining them together by melting the metal at the point of contact. This creates a strong and permanent connection. Welded connections are often used in larger diameter pipes and high-pressure applications. Mechanical fittings are another popular option for connecting steel pipes. These fittings are designed to be easily installed without the need for welding or threading. They typically consist of two parts – a compression ring and a nut. The compression ring is placed over the pipe, and the nut is tightened, compressing the ring onto the pipe and creating a secure connection. Mechanical fittings are commonly used in both residential and commercial plumbing systems. In addition to these methods, other connection techniques such as flanges, grooved couplings, and soldering can also be used to connect steel pipes to other plumbing components, depending on the specific needs of the system. Overall, the method used to connect steel pipes to other plumbing components depends on factors such as the size of the pipes, the pressure of the system, the type of fluid being transported, and the specific requirements of the project. It is important to choose the appropriate method and ensure that the connections are properly installed to ensure the integrity and efficiency of the plumbing system.

Q: How do you determine the maximum allowable stress for steel pipes?: To determine the maximum allowable stress for steel pipes, several factors need to be considered. These factors include the type of steel, the pipe's dimensions, and the operating conditions under which the pipe will be used. Firstly, the type of steel plays a crucial role in determining the maximum allowable stress. Different grades of steel have varying mechanical properties, including yield strength, tensile strength, and elongation. These properties define the material's ability to withstand stress before deformation or failure. Therefore, understanding the specific grade of steel used in the pipes is vital in determining the maximum allowable stress. Secondly, the dimensions of the pipe are essential. The outer diameter, wall thickness, and length all influence the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can determine the pipe's resistance to bending and axial stresses. These calculations, along with the material properties, help establish the maximum allowable stress. Lastly, the operating conditions under which the pipe will be subjected to are critical. Factors such as temperature, pressure, and the presence of corrosive substances can significantly impact a steel pipe's maximum allowable stress. Elevated temperatures can affect the steel's mechanical properties, while high pressures can induce additional stress. The presence of corrosive substances can lead to material degradation and decrease the pipe's strength. Considering these operational factors is crucial in determining the maximum allowable stress. To sum up, determining the maximum allowable stress for steel pipes involves considering the specific grade of steel, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and used within its safe stress limits.

Q: What are the factors affecting the cost of steel pipes?: The factors affecting the cost of steel pipes include raw material prices, production and manufacturing costs, transportation and logistics expenses, market demand and supply dynamics, import and export tariffs, government regulations, and the overall economic conditions. Additionally, factors such as the grade and quality of steel used, diameter and thickness of the pipes, and any additional features or coatings can also influence the cost.

Q: Are steel pipes suitable for use in acidic environments?: No, steel pipes are generally not suitable for use in acidic environments because they are prone to corrosion in such conditions.

Q: How do you join steel pipes together?: Steel pipes can be joined together using various methods, including welding, threading, and using mechanical couplings.

Q: Can steel pipes be used for underground chemical pipelines?: Indeed, underground chemical pipelines can utilize steel pipes. The chemical industry, among other industries, extensively employs steel pipes owing to their robustness, potency, and resistance to corrosion. To ensure suitability for underground chemical pipelines, it is crucial to select an appropriate steel grade that can withstand corrosion from the specific chemicals being transported. Furthermore, the resistance of steel pipes to chemical corrosion can be further augmented through the implementation of suitable coating and lining techniques. Regular inspection and maintenance are imperative to guarantee the integrity and safety of the underground chemical pipeline system.

Q: How are steel pipes specified in engineering drawings?: Steel pipes are typically specified in engineering drawings by indicating their diameter, wall thickness, material grade, and length. Additional specifications may include the type of connection or joining method, surface finish requirements, and any specific standards or codes that need to be followed.

Q: What's the difference between No. 20 steel pipe and 27SiMn Steel Pipe?: 27SiMn =27 - steel pipe, which is a seamless steel tube material, the carbon content in 0.24 - 0.32%, SIMN single because it five elements (carbon manganese silicon Si, C, Mn, P P, S, guimeng sulfur) the high content of about 1.10 - 1.40%.

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