SPIRAL STEEL PIPE 46’‘48‘‘50’‘ 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 transporting liquids?: Yes, steel pipes can be used for transporting liquids. Steel pipes offer excellent strength, durability, and resistance to corrosion, making them suitable for various applications, including the transportation of liquids such as water, oil, and gas.

Q: Can steel pipes be used for underground culverts?: Yes, steel pipes can be used for underground culverts. Steel pipes are commonly used for underground culverts due to their strength, durability, and resistance to corrosion. They provide a reliable solution for conveying water or other fluids underground, ensuring efficient drainage and water management systems.

Q: How much is the wall thickness standard of building 48?: According to the "construction of fastener type steel pipe scaffold safety technical specifications JGJ130-2011" stipulates that the specification of steel pipe should be Phi 48.3 * 3.6, that is, wall thickness is 3.6mm.

Q: How are steel pipes used in the manufacturing of boilers and heat exchangers?: Boilers and heat exchangers rely on steel pipes as an essential component due to their exceptional properties and capabilities. These pipes are specifically designed to endure high temperatures, pressures, and corrosive environments, making them highly suitable for these purposes. When constructing boilers, steel pipes are employed to form the main body or shell. This shell contains the water or steam that is heated to generate heat or produce steam for diverse industrial processes. The steel pipes used in boilers are typically seamless or welded, possessing precise dimensions and exceptional strength to ensure structural integrity and prevent any potential leaks. Heat exchangers, on the other hand, are devices used for transferring heat between two fluids, often with varying temperatures. Steel pipes are utilized in heat exchangers as the primary medium for heat transfer. The pipes are commonly arranged in a pattern, allowing the hot fluid to pass through one set of pipes while the cold fluid passes through another set. This arrangement facilitates efficient heat transfer between the two fluids. The use of steel pipes in boilers and heat exchangers provides numerous advantages. Firstly, steel pipes exhibit excellent thermal conductivity, enabling efficient heat transfer between the fluid and the surrounding environment. Secondly, steel pipes possess high tensile strength and can withstand high pressures, ensuring the safety and reliability of the equipment. Thirdly, steel pipes are highly resistant to corrosion, which is crucial in environments where the processed fluids are corrosive or contain impurities. Furthermore, steel pipes can be easily fabricated and customized to meet the specific requirements of boilers and heat exchangers. They can be manufactured in various sizes, lengths, and thicknesses to accommodate diverse applications. Additionally, steel pipes can be coated or lined with materials such as ceramic or epoxy to provide additional protection against corrosion or abrasion. In conclusion, steel pipes play a crucial role in the manufacturing of boilers and heat exchangers. Their exceptional properties, including high strength, thermal conductivity, and corrosion resistance, make them the optimal choice for these applications. The use of steel pipes ensures the efficient operation, safety, and longevity of boilers and heat exchangers in various industrial processes.

Q: What connections are there for concrete filled steel tubular column foundations?: The Liang Duan local widening joint is achieved by the continuous construction of longitudinal steel bars around the steel tube. At the beginning of the creation of additional stirrups should be widened longitudinal reinforced wrap, Liang Duan local widened joints of steel reinforced concrete beam and corbel overlapping transition zone can transmits beam internal force, bending steel bracket in both shear and participation. The node form is used in building engineering in Xiamen. The force transfer path of this joint is clear and reliable, with less welding on site and more convenient for construction. This kind of node passes shear stress through the bracket, and the stress is more concentrated.

Q: What is the outer diameter of the steel tube?: The outer diameter refers to the maximum diameter including the thickness of the steel tube, the inner diameter is the length of the hollow part inside, and the outer diameter minus the inside diameter is the thickness of the steel pipe

Q: How are steel pipes used in the manufacturing of hydraulic systems?: Steel pipes are commonly used in the manufacturing of hydraulic systems due to their durability, strength, and resistance to high pressures. These pipes are typically used to transport hydraulic fluid, providing a reliable and leak-free connection between various components such as pumps, valves, and actuators. Steel pipes also offer the advantage of being able to withstand harsh operating conditions and ensure efficient fluid flow, making them an essential component in hydraulic system manufacturing.

Q: Are metal spiral tubes the same as metal bellows?: Hello. The two are not the same. The difference lies in. The pitch of a spiral pipe is much larger than that of a bellows. The maximum material thickness of the spiral tube is much thicker than that of the bellow. The diameter of a spiral tube can be very large. But the bellows can't be too big in diameter.

Q: How are steel pipes connected to other materials like concrete or plastic?: Steel pipes are commonly connected to other materials like concrete or plastic through various methods. One common method is through the use of fittings. Fittings are specialized components that facilitate the connection between different materials or pipe sections. These fittings come in various shapes and sizes, such as elbows, tees, reducers, and couplings, and they are designed to provide a secure and leak-proof connection. When connecting steel pipes to concrete, one method is to use concrete anchors. These anchors are embedded into the concrete structure and provide a stable base for securing the steel pipe. The pipe is then attached to the anchor using clamps or brackets. Connecting steel pipes to plastic materials can be achieved through the use of transition fittings. These fittings are specifically designed to join steel pipes with plastic pipes. They typically feature different connection mechanisms on each end, such as threads or compression fittings, allowing for a secure and reliable connection. In some cases, steel pipes can also be connected to other materials using welding techniques. Welding involves melting the ends of the steel and the other material together to create a strong joint. This method is often used for connecting steel pipes to steel structures or components. Overall, the connection of steel pipes to other materials like concrete or plastic requires the use of specialized fittings, anchors, or welding techniques. These methods ensure that the connection is secure, durable, and able to withstand the demands of the application.

Q: What are the different methods of protecting steel pipes from corrosion?: There are several methods of protecting steel pipes from corrosion. One common method is coating the pipes with materials such as epoxy, polyethylene, or fusion bonded epoxy, which create a barrier between the pipe's surface and corrosive elements. Another method is cathodic protection, which involves using sacrificial anodes or impressed current to prevent corrosion. Additionally, applying corrosion inhibitors or using corrosion-resistant alloys for manufacturing the pipes can provide protection. Regular maintenance, including inspections and cleaning, is also crucial to ensure the ongoing protection of steel pipes from corrosion.

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