SPIRAL STEEL PIPE 46’‘48‘‘50’‘ LARGE DIAMETER PIPE
- Ref Price:
-
- 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 | 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:Are steel pipes suitable for use in nuclear power plants?
- Yes, steel pipes are suitable for use in nuclear power plants. They are commonly used for various purposes including cooling systems, steam generation, and containment of radioactive materials due to their high strength, durability, and resistance to corrosion.
- Q:What are the different types of steel pipe tees?
- Various plumbing and piping applications commonly utilize different types of steel pipe tees. These tees serve various purposes and offer specific functionalities. 1. Equal tee: This tee consists of three branches of the same size, ensuring an equal flow of fluid or gas through each branch. 2. Unequal tee: As suggested by its name, an unequal tee features branches of varying sizes. This allows for merging or diversion of flows with different volumes or pressures. 3. Reducing tee: This tee is deployed when the branch size is smaller than the main pipe size. It enables a reduction in size while maintaining the flow in the main line. 4. Barred tee: In situations involving the insertion or removal of a pipeline-cleaning and inspection device known as a pig, a barred tee is employed. It possesses a bar welded across one or two branches to create a bypass for the pig. 5. Lateral tee: A lateral tee has a branch angle of either 45 degrees or 90 degrees, facilitating the perpendicular alignment of the branch line with the main line. It finds extensive use in fire sprinkler systems and scenarios necessitating a change in direction. 6. Compression tee: This tee is suitable for gas or hydraulic systems, where branches are connected using compression fittings rather than welding or threading. 7. Butt-weld tee: High-pressure and high-temperature applications employ butt-weld tees. These tees are welded to the main pipe using butt-welding techniques, ensuring a robust and leak-proof connection. These represent some of the most prevalent types of steel pipe tees employed across diverse industries. The selection of the appropriate tee depends on specific project requirements, such as pipe size, flow rates, and transported materials.
- Q:What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?
- It is made up of steel pipe, fastener, base, foot board, safety net and so onSteel pipe rod: generally there are two kinds, an outer diameter 48mm, wall thickness 3.5mm; another kind of outer diameter 51mm, wall thickness 3mm; according to its location and function is different, can be divided into vertical pole, horizontal rod, sweeping rod, etc..Fasteners: fastener is the connection between the steel tube and steel tube, which has three forms, namely the right angle fastener, rotating fastener, butt joint fastener: rectangular fastener for connecting the two vertical pipes, it depends on the friction between the fastener and the steel pipe to transfer load. Swivel fastener: used for connecting two steel tubes intersecting at any angle.
- Q:Can steel pipes be used in marine environments?
- Indeed, the usage of steel pipes is viable in marine environments. Steel, being a robust and sturdy material, possesses the capability to endure the severe conditions prevalent in marine surroundings, encompassing saltwater exposure, wave impacts, and corrosion. Nevertheless, it is imperative to meticulously choose the appropriate steel variant and implement suitable protective measures to avert corrosion. Stainless steel and corrosion-resistant alloys are often employed in marine applications due to their exceptional resistance against corrosion and ability to withstand continuous saltwater exposure. Furthermore, the application of coatings such as epoxy or zinc can be an effective means of fortifying steel pipes against corrosion. Consistent maintenance and inspections are also pivotal in ensuring the durability and functionality of steel pipes in marine settings.
- Q:How are steel pipes used in the manufacturing of machinery?
- Steel pipes are used in the manufacturing of machinery for various purposes such as conveying fluids, gases, or materials, as structural components, and for heat transfer. They provide durability, strength, and resistance to corrosion, making them suitable for applications where high pressure, temperature, or heavy loads are involved.
- Q:What are the different methods of pipe cutting for steel pipes?
- There are several methods of cutting steel pipes including manual methods such as hacksaw cutting and abrasive cutting, as well as more advanced methods like plasma cutting, laser cutting, and water jet cutting. Each method has its own advantages and is selected based on the specific requirements of the project.
- Q:How are steel pipes threaded for easy installation?
- Steel pipes are threaded for easy installation using a process called threading. Threading involves cutting grooves or ridges into the pipe to create a spiral pattern. This pattern allows the pipe to easily connect with other threaded components, such as fittings or valves. There are two common methods used to thread steel pipes: manual threading and machine threading. In manual threading, a handheld tool called a pipe die is used. The die is equipped with sharp teeth that cut into the pipe as it is rotated. The pipe is secured in a vise or held firmly by hand, and the die is applied to the end of the pipe. The die is then rotated around the pipe, creating the threaded grooves. This process requires skill and precision to ensure accurate and properly aligned threads. Machine threading, on the other hand, is a more automated process. It involves the use of a pipe threading machine, which is equipped with a die head that automatically cuts the threads into the pipe. The machine secures the pipe and rotates it while the die head moves along the length of the pipe, cutting the threads. Machine threading is faster and more efficient than manual threading, making it ideal for large-scale production or projects. Regardless of the method used, it is crucial to ensure that the threads are clean and free from debris or burrs. This is important for easy installation and to prevent leaks or other complications. After threading, the pipes are typically inspected to ensure the threads meet the required specifications. Threading steel pipes allows for easy installation as the threaded ends can be easily screwed into fittings, valves, or other pipes with compatible threads. This threaded connection creates a tight seal, making it suitable for various applications, such as plumbing, gas lines, or industrial piping systems.
- Q:How are steel pipes used in natural gas processing plants?
- Steel pipes are used in natural gas processing plants to transport and distribute natural gas from one point to another within the facility. These pipes are capable of withstanding high pressure and temperature, ensuring the safe and efficient flow of the gas throughout the plant. Additionally, steel pipes are resistant to corrosion, which is crucial as natural gas can be corrosive. They are also used for connecting various equipment and components in the processing plant, allowing for the smooth operation of the entire system.
- Q:How are steel pipes protected during transportation?
- To ensure the safety and integrity of steel pipes during transportation, various measures are taken. One effective approach involves applying protective coatings to the pipes' exteriors. These coatings, such as epoxy or polyethylene, act as barriers against moisture, corrosion, and physical damage. Additionally, bundling the pipes together and securing them with strapping or bands prevents movement and potential collisions while in transit. To provide extra protection against impact and handling, wooden crates or containers may also be used. Furthermore, careful loading and unloading procedures are followed to minimize stress or strain on the pipes. By implementing these protective measures, steel pipes can safely reach their destination without compromising their quality or structural integrity.
- Q:How are steel pipes inspected for quality?
- Steel pipes are inspected for quality through a rigorous process that involves various techniques and standards. One common method is visual inspection, where trained professionals examine the pipes for any visible defects such as cracks, dents, or surface irregularities. This visual inspection ensures that the pipes meet the required specifications and are free from any visible flaws. Additionally, non-destructive testing (NDT) methods are employed to evaluate the internal and external quality of the steel pipes. One widely used NDT technique is ultrasonic testing, which involves sending ultrasonic waves through the pipes to detect any internal defects or inconsistencies in the material. This method can identify issues like wall thickness variations, inclusions, or weld defects that may compromise the pipe's integrity. Another popular NDT technique is magnetic particle inspection, which uses magnetic fields and iron particles to identify surface cracks or flaws in the steel pipes. This method is particularly effective for detecting defects in ferromagnetic materials and can be performed on both the outside and inside surfaces of the pipes. Furthermore, hydrostatic testing is often conducted to evaluate the pipes' strength and resistance to pressure. In this process, the pipes are filled with water or another suitable fluid and subjected to a specified pressure to check for leaks or structural weaknesses. This test helps ensure that the pipes are capable of withstanding the intended operational conditions without failure. In addition to these techniques, various quality control measures are implemented throughout the manufacturing process, including material traceability, dimensional checks, and chemical composition analysis. These measures help guarantee that the steel pipes meet the required standards and specifications, ensuring their quality and reliability. Overall, the inspection of steel pipes for quality involves a combination of visual inspection, non-destructive testing methods, and quality control measures. These comprehensive procedures help identify any defects, inconsistencies, or weaknesses, ensuring that the pipes meet the necessary quality standards and are fit for their intended purpose.
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SPIRAL STEEL PIPE 46’‘48‘‘50’‘ LARGE DIAMETER PIPE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 3000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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