SPIRAL STEEL PIPE 16‘‘-48’‘

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Loading Port:: China Main Port

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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 manufacturing of shipbuilding?: Steel pipes are used in shipbuilding for various purposes such as constructing the ship's hull, piping systems for fuel and water transport, ventilation systems, and structural support. They provide strength, durability, and corrosion resistance, making them essential components in the construction and operation of ships.

Q:How much is the tube?: The first prerequisite we need to determine is: what are the specifications of the steel pipe mentioned? Such as the commonly used steel pipe specifications: diameter 108*4.5, diameter 219*6, diameter 377*10, diameter and wall thickness of steel pipe with different specifications, different weight, so the steel price per meter is different.

Q:Can steel pipes be used for chimney flues?: Yes, steel pipes can be used for chimney flues. Steel pipes are often used as a viable option for chimney flues due to their durability, heat resistance, and ability to withstand high temperatures. However, it is important to ensure that the steel pipes used are specifically designed and approved for chimney flue applications to meet safety standards and regulations.

Q:What is the difference between hot-finished and cold-finished steel pipes?: Distinguishing hot-finished and cold-finished steel pipes can be done by examining their manufacturing processes, which lead to different characteristics and applications. To create hot-finished steel pipes, a solid steel billet is heated to a high temperature and then pierced to form a hollow tube. This process, known as hot rolling, ensures that the steel is easily shaped and malleable. As a result, hot-finished steel pipes have rough surfaces and rounded edges. They are generally larger in diameter and have thicker walls. These pipes are commonly utilized in industries that demand high strength and pressure resistance, like the oil and gas sector, structural projects, and heavy machinery manufacturing. On the other hand, cold-finished steel pipes are produced using a process called cold drawing. This involves pulling the hot-finished steel pipe through a die at room temperature to reduce its diameter and achieve the desired shape. The cold drawing process yields a more precise and smoother finish for the steel pipes. Cold-finished steel pipes possess smoother surfaces and sharper edges compared to their hot-finished counterparts. They are typically smaller in diameter and have thinner walls. Cold-finished steel pipes are commonly applied in industries that require accurate dimensions, such as automotive part manufacturing, construction component fabrication, and machinery production. In conclusion, the primary disparity between hot-finished and cold-finished steel pipes stems from their manufacturing processes, resulting in variations in surface finish, dimensions, and applications. Hot-finished pipes are suitable for applications that demand high strength and pressure resistance, while cold-finished pipes are ideal for applications that require precise dimensions and smooth surfaces.

Q:Are steel pipes suitable for wastewater treatment plants?: Yes, steel pipes are suitable for wastewater treatment plants. Steel pipes are known for their durability, corrosion resistance, and high strength, making them ideal for handling the demanding conditions of wastewater treatment plants. They can effectively transport and contain wastewater without any structural or functional issues, ensuring efficient and reliable operation of the treatment process.

Q:How are steel pipes used in the construction of dams?: Steel pipes are used in the construction of dams for various purposes such as water intake/outlet systems, penstocks, and spillway gates. These pipes are essential for transporting water to and from the dam, controlling the flow, and ensuring the dam's stability.

Q:Can steel pipes be used for plumbing?: Yes, steel pipes can be used for plumbing.

Q:What are the factors to consider when designing a steel pipe system?: To ensure the functionality, durability, and efficiency of a steel pipe system, several factors must be taken into account during the design process: 1. It is crucial to determine the maximum pressure and temperature the system will be exposed to. This information is essential for selecting the appropriate pipe material, thickness, and jointing method to withstand the system's operating conditions. 2. The selection of the right material for the steel pipes is important. Factors such as corrosion resistance, strength, and cost should be considered. Common materials include carbon steel, stainless steel, and alloy steel. 3. Calculating the adequate pipe size and wall thickness is essential to ensure the required flow rate and pressure drop within the system. The pipe size directly affects the system's efficiency and must be chosen based on the anticipated flow rates and pressure losses. 4. Proper support and anchoring are critical to prevent sagging, movement, and stress on the steel pipe system. The design should take into account the weight of the pipes, the fluid being transported, and any external forces acting on the system. 5. Expansion joints or loops should be incorporated to allow for thermal growth and contraction, preventing damage and distortion caused by temperature variations. 6. Understanding the properties of the fluid being transported, such as corrosiveness, viscosity, and potential for sedimentation or scaling, is important in selecting the appropriate pipe material and protective coatings or linings. 7. Consideration should be given to the accessibility of the system for installation, inspection, and maintenance purposes. The design should include proper access points, valves, and fittings to facilitate easy maintenance and repairs. 8. Environmental factors such as extreme temperatures, humidity, or corrosive substances should be taken into account when selecting the pipe material, protective coatings, and insulation. 9. Compliance with industry standards, codes, and regulations is essential. The design should adhere to safety guidelines and applicable building codes to ensure the integrity and longevity of the pipe system. 10. The overall cost of the steel pipe system, including material, installation, maintenance, and energy consumption, should be considered. Balancing cost-effectiveness with performance requirements is crucial in achieving an efficient and economical design. By considering these factors, engineers and designers can create a steel pipe system that is suitable for its intended purpose, ensuring its longevity, reliability, and safety.

Q:What quota should be installed for heating seamless steel pipe?: Installation quota of seamless steel pipe project, if it is indoor engineering, sets of welded steel pipe, the price adjustment can

Q:Can steel pipes be used for underground drainage in acidic soils?: Yes, steel pipes can be used for underground drainage in acidic soils. However, it is important to consider the type of steel used and the corrosion resistance properties to ensure longevity and prevent potential damage from the acidic environment. Additionally, protective coatings or linings can be applied to the steel pipes to enhance their resistance to corrosion in acidic soils.

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