SPIRAL STEEL PIPE 32’‘-48’‘

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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 handle ground settlement?: Steel pipes are known for their strength and durability, making them capable of handling ground settlement effectively. Due to their rigid nature, steel pipes are resistant to deformation or collapse caused by uneven settling of the ground. This makes them a reliable choice for underground installations, as they can withstand and navigate through the changes in the ground surface without compromising their structural integrity.

Q:What is the difference between steel pipes and PVC-O pipes?: The main difference between steel pipes and PVC-O pipes is the material they are made of. Steel pipes are made of metal, specifically steel, which gives them high strength and durability. On the other hand, PVC-O pipes are made of a type of plastic called polyvinyl chloride, which is reinforced with oriented molecules, making them extremely strong and resistant to both internal and external pressures. Additionally, steel pipes are prone to corrosion, while PVC-O pipes are resistant to rust and chemical degradation. PVC-O pipes are also lighter and easier to handle and install compared to steel pipes.

Q:Can steel pipes be used for transporting liquids?: Yes, steel pipes can be used for transporting liquids. Steel pipes have excellent durability, strength, and corrosion resistance, making them a suitable choice for transporting various liquids, including water, oil, gas, and chemicals.

Q:How do steel pipes compare to other materials like PVC or copper?: Steel pipes are known for their exceptional strength and durability, making them suitable for various applications. Compared to materials like PVC or copper, steel pipes offer higher resistance to corrosion, fire, and extreme temperatures. They also have a longer lifespan and can withstand high pressure and heavy loads. However, steel pipes are generally more expensive and require regular maintenance to prevent rusting. PVC pipes, on the other hand, are more affordable, lightweight, and easy to install, but they are less durable and have lower temperature resistance. Copper pipes are known for their excellent heat conductivity and resistance to corrosion, but they are more expensive and can be prone to theft. Ultimately, the choice between steel, PVC, or copper pipes depends on the specific requirements of the project and the budget.

Q:Can stainless steel pipes spray black paint?: Yes, after painting, I usually touch hands and paint off in 2 years or so

Q:What are the different methods of joining steel pipes without welding?: There are several methods of joining steel pipes without welding, including: 1. Mechanical Couplings: These couplings consist of two separate pieces that are attached to the ends of the pipes and then tightened together. They provide a secure and leak-proof connection without the need for welding. 2. Threaded Connections: In this method, the ends of the steel pipes are threaded to create a male and female connection. The pipes are then screwed together using pipe threads, providing a strong and reliable joint. 3. Flanged Connections: Flanges are used to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposite flange. Bolts are then inserted and tightened to create a tight seal. 4. Grooved Connections: This method involves grooving the ends of the steel pipes and then using grooved couplings to join them. The couplings have teeth that interlock with the grooves, creating a secure and rigid connection. 5. Compression Fittings: Compression fittings are used to join steel pipes by compressing a metal or plastic ring onto the pipe's outer surface. This creates a tight seal and a reliable connection, without the need for welding. 6. Adhesive Bonding: Special adhesives designed for metal bonding can be used to join steel pipes. The adhesive is applied to the surfaces of the pipes, which are then pressed together and left to cure, creating a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily disassembled. Each of these methods has its own advantages and limitations, and the choice depends on factors such as the specific application, pipe material, and the required strength of the joint.

Q:What does "spiral welded steel pipe" DN325*10 mean?: Spiral welded steel pipe with nominal diameter of 325mm and wall thickness of 10mm

Q:How are steel pipes used in the construction of water treatment plants?: Steel pipes are commonly used in the construction of water treatment plants for various purposes such as transporting water, carrying chemicals, and handling wastewater. They are often used as the main conduits for distributing treated water throughout the plant, as well as for supplying raw water from the source to the treatment facility. Steel pipes also play a crucial role in the transportation of chemicals used in the treatment processes, ensuring their safe and efficient delivery. Additionally, steel pipes are utilized for the disposal of wastewater and sludge, allowing for proper drainage and disposal systems within the plant. Overall, steel pipes are essential components in the construction and operation of water treatment plants, providing the necessary infrastructure for the efficient and effective treatment of water.

Q:How do you repair damaged steel pipes?: To repair damaged steel pipes, there are several steps that can be followed: 1. Identify the extent of the damage: Assess the severity of the damage to determine if it can be repaired or if the pipe needs to be replaced altogether. 2. Isolate and drain the section: Shut off the water supply to the damaged section of the pipe and drain any remaining water to prevent further leakage or damage. 3. Clean the damaged area: Remove any dirt, rust, or other debris from the damaged area. This can be done using a wire brush or sandpaper. 4. Prepare the damaged area: Roughen the surface of the damaged area using coarse sandpaper. This will help the repair material adhere better to the pipe. 5. Choose a repair method: Depending on the size and location of the damage, there are various repair methods available. Some common options include using epoxy putty, pipe wraps, or clamps. 6. Apply the repair material: Follow the instructions provided with the chosen repair method to apply the material to the damaged area. Ensure that it covers the entire damaged section and extends slightly beyond it for added protection. 7. Allow the repair to cure: Give the repair material sufficient time to cure as per the manufacturer's instructions. This will ensure a strong bond and effective sealing of the damaged area. 8. Test the repair: Once the repair has cured, turn the water supply back on and check for any leaks. If there are no signs of leakage, the repair is successful. Otherwise, reevaluate the repair or consider seeking professional assistance. It is important to note that these steps provide a general guideline for repairing damaged steel pipes. However, the specific repair method may vary depending on the size and severity of the damage. In complex cases or if unsure, it is recommended to consult a professional plumber or pipe repair specialist.

Q:How are steel pipes used in the manufacturing of aerospace components?: Steel pipes are commonly used in the manufacturing of aerospace components for various purposes such as fuel and hydraulic systems, structural supports, and exhaust systems. These pipes provide strength, durability, and resistance to high temperatures and pressure, making them suitable for critical applications in the aerospace industry.

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