Reclaimed Plimmung Spiral Steel Pipe 42'' ASTM API 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:How are steel pipes protected against external damage?
- Steel pipes are protected against external damage through various methods such as coating them with protective materials like polyethylene or epoxy, using cathodic protection techniques, and implementing physical barriers like concrete encasement or pipe sleeves. These measures help prevent corrosion, impact, and abrasion, ensuring the durability and longevity of the steel pipes.
- Q:What are the common maintenance practices for steel pipes?
- Common maintenance practices for steel pipes include regular inspections, cleaning, and corrosion prevention. Regular inspections are crucial to identify any signs of damage or wear. This can involve visual inspections, as well as non-destructive testing methods such as ultrasonic testing or magnetic particle inspection. Inspections should be carried out on a scheduled basis to ensure any issues are detected early on and can be addressed promptly. Cleaning is another important maintenance practice for steel pipes. This involves removing any dirt, debris, or scale that may accumulate both on the inside and outside of the pipes. Regular cleaning helps to prevent blockages, improve flow efficiency, and reduce the risk of corrosion. Corrosion prevention is a key aspect of maintaining steel pipes. Various methods can be employed to protect the pipes from corrosion, such as applying protective coatings, using cathodic protection systems, or implementing corrosion inhibitors. These measures help to extend the lifespan of the pipes and ensure their structural integrity over time. Other maintenance practices may include repairing or replacing damaged sections of the pipes, maintaining proper insulation to prevent heat loss or gain, and monitoring the pipes for any signs of leakage or pressure drops. Overall, regular inspections, cleaning, and corrosion prevention are essential maintenance practices for steel pipes. By implementing these practices, the lifespan of the pipes can be prolonged, and potential issues can be identified and addressed before they cause significant damage or disruptions.
- Q:How do you select the right size of steel pipe for a project?
- To select the right size of steel pipe for a project, one must consider factors such as the intended purpose, the flow rate or pressure requirements, the material being transported, and any applicable building codes or regulations. Consulting engineering specifications, pipe size charts, and professional advice can help in determining the appropriate size that will meet the project's requirements and ensure optimal performance and safety.
- Q:What is the difference between ERW (Electric Resistance Welded) and LSAW (Longitudinal Submerged Arc Welded) steel pipes?
- ERW (Electric Resistance Welded) steel pipes are manufactured by passing an electric current through the steel strip or plate to generate heat, which results in the fusion of the edges together to form a pipe. On the other hand, LSAW (Longitudinal Submerged Arc Welded) steel pipes are produced by submerging the steel plate or strip into a molten bath of welding flux and then initiating the welding process. The main difference between ERW and LSAW steel pipes lies in their manufacturing processes and the resulting pipe structure. ERW pipes have a longitudinal seam along their length, created by the fusion of the edges, while LSAW pipes have a single longitudinal seam that is formed by the submerged arc welding process. This difference in welding techniques gives LSAW pipes a higher degree of dimensional accuracy and stability, making them suitable for applications that require precise measurements and strong structural integrity. Additionally, LSAW pipes have a larger diameter range and can be produced in larger sizes compared to ERW pipes. This makes LSAW pipes well-suited for conveying large volumes of fluid or gas, such as in oil and gas pipelines. Conversely, ERW pipes are commonly used in applications that require smaller sizes and lower pressure requirements, such as water supply systems or structural applications. In summary, the main differences between ERW and LSAW steel pipes lie in their manufacturing processes, resulting pipe structure, size capabilities, and applications.
- Q:How are steel pipes used in the aerospace manufacturing industry?
- Steel pipes are commonly used in the aerospace manufacturing industry for various purposes such as hydraulic systems, fuel lines, and structural components. They offer excellent strength, durability, and resistance to high temperatures, making them ideal for carrying fluids and supporting the overall structure of aircraft.
- Q:What is the maximum allowable deflection for steel pipes?
- Industry standards and design codes typically determine the maximum allowable deflection for steel pipes. These regulations specify the acceptable limits of deflection to guarantee the pipes' structural integrity and functionality. The maximum allowable deflection can vary, depending on factors like pipe diameter, wall thickness, material properties, and the application type. To determine the specific maximum allowable deflection for a particular steel pipe application, it is crucial to reference relevant standards and codes such as the ASME B31.3 code for process piping or AWWA standards for water transmission and distribution pipes. Adhering to these guidelines ensures the safe and efficient operation of steel pipes in various industries and applications.
- Q:What are the different methods of pressure testing steel pipes?
- There are several methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing. Hydrostatic testing involves filling the pipe with water and applying pressure to check for leaks or weaknesses. Pneumatic testing uses compressed air or gas to pressurize the pipe and detect any leaks or failures. Ultrasonic testing utilizes high-frequency sound waves to inspect the pipe's integrity by detecting any flaws or defects.
- Q:How can two smooth steel pipes be joined? The size of the two pipe is different (except for welding)
- Fastener type steel pipe scaffold, fastener is the connection between steel pipe and steel pipe, and its form has three kinds, namely right angle fastener, rotating fastener, butt fastener
- Q:What are the different grades of steel used in manufacturing pipes?
- The different grades of steel used in manufacturing pipes are typically categorized based on their chemical composition and mechanical properties. Some common grades include carbon steel, stainless steel, alloy steel, and duplex steel. Each grade has its own unique characteristics and is chosen based on the specific requirements of the application, such as corrosion resistance, strength, and temperature resistance.
- Q:How are steel pipes insulated to prevent condensation?
- Steel pipes are typically insulated using materials such as foam or fiberglass that have low thermal conductivity. These insulating materials create a barrier that prevents the transfer of heat between the pipe and the surrounding environment, reducing the temperature difference and minimizing the chance of condensation occurring on the pipe surface.
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Reclaimed Plimmung Spiral Steel Pipe 42'' ASTM API 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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