SPIRAL STEEL PIPE 36’‘ 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: What are the different types of steel pipe supports for thermal expansion?
- There are several different types of steel pipe supports that can be used for thermal expansion, including rigid supports, sliding supports, and spring supports. Rigid supports provide fixed support to the pipe and do not allow for any movement. Sliding supports allow the pipe to move horizontally as it expands or contracts, while still providing vertical support. Spring supports use springs to support the weight of the pipe and allow for vertical movement as well as thermal expansion.
- Q: What are the different types of fittings used with steel pipes?
- Steel pipes are commonly paired with various fittings that serve to connect, control, or alter the flow direction in a piping system. Some of these fittings include: 1. Elbow fittings: Designed to modify the flow direction, elbow fittings are available in different angles, such as 45 or 90 degrees. They are frequently utilized to navigate obstacles or introduce bends in the pipe. 2. Tee fittings: Tee fittings are implemented to create a branch or division in the piping system. With three openings, one perpendicular to the other two, they enable the connection of two pipes at a 90-degree angle. 3. Coupling fittings: Used to join two pipes of the same size, coupling fittings are typically threaded and can be easily fastened or removed with a wrench. They are commonly employed when pipes need to be connected or repaired. 4. Reducer fittings: Reducers are employed to connect pipes of varying sizes. They consist of one end with a larger diameter and another end with a smaller diameter. Reducers are often employed to transition between pipe sizes or adapt to different equipment or fittings. 5. Flange fittings: Flanges are utilized to establish a secure and leak-proof connection between pipes, valves, or other equipment. They consist of a flat, circular plate with holes to accommodate bolts or screws for fastening the flange to the pipe. Flange fittings find frequent use in applications that necessitate frequent disassembly and reassembly. 6. Union fittings: Union fittings are employed to join two pipes in a manner that facilitates easy disconnection. They comprise three parts: a nut, a female end, and a male end. Union fittings are commonly used in scenarios that require periodic maintenance or repairs. 7. Cap fittings: Cap fittings are employed to seal the end of a pipe. Usually threaded, they can be effortlessly screwed onto the pipe's end. Cap fittings are commonly used in instances where temporary closure or protection of pipes is necessary. These examples represent some of the various fittings utilized with steel pipes. The specific fitting required depends on factors such as the application, pipe size and material, as well as the desired functionality of the piping system.
- Q: How many meters per ton of steel tube?
- Formula of steel tube: (outside diameter wall thickness) * wall thickness *0.02466= per meter weight1000 divided by the weight per metre is how many meters per ton
- Q: What is the difference between steel pipes and copper pipes?
- The main difference between steel pipes and copper pipes lies in their material composition. Steel pipes are made of iron and carbon, while copper pipes are composed of copper metal. Additionally, steel pipes are generally more durable and can withstand higher pressure and temperature levels, making them suitable for industrial applications. On the other hand, copper pipes are more malleable and easily bent, making them ideal for residential plumbing systems. Moreover, copper pipes have better corrosion resistance compared to steel pipes, which may require coatings or treatments to prevent rusting.
- Q: What is galvanized steel pipe?
- Galvanized steel pipe is a type of steel pipe that has been coated with a layer of zinc, which helps protect it from corrosion and rust. This coating also increases the pipe's longevity and makes it suitable for various applications, including plumbing, construction, and outdoor structures.
- Q: Can steel pipes be used for underground fire hydrants?
- Steel pipes are a suitable choice for underground fire hydrants due to their durability, strength, and corrosion resistance. They are commonly used in underground water supply systems, including fire hydrant installations. Furthermore, steel pipes can withstand high water pressures and offer a reliable and long-lasting solution for fire hydrants. However, it is important to ensure that the steel pipes used for underground fire hydrants are adequately coated or lined to prevent corrosion and maintain their structural integrity over time. Regular maintenance and inspections should also be carried out to detect and resolve any potential problems that may arise.
- Q: How do you calculate the pipe buoyancy for steel pipes in water?
- In order to determine the buoyancy of steel pipes in water, one must take into account the weight of the water displaced by the submerged part of the pipe. This can be achieved by applying Archimedes' principle, which states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. Firstly, the volume of the submerged portion of the pipe needs to be calculated. This can be accomplished by multiplying the cross-sectional area of the pipe by the length of the submerged part. Next, the density of the water surrounding the pipe must be determined. Typically, this value is approximately 1000 kg/m³ for freshwater and slightly higher for seawater. To find the weight of the water displaced, multiply the volume of the submerged portion of the pipe by the density of the water. Lastly, compare the weight of the water displaced to the weight of the steel pipe. If the weight of the water displaced is greater than that of the pipe, the pipe will exhibit buoyancy and tend to float. Conversely, if the weight of the pipe is greater, it will sink. It is worth noting that factors such as pipe design, wall thickness, and external forces acting upon the pipe may also impact its buoyancy. Therefore, it is advisable to consult industry-specific guidelines or seek professional advice for precise calculations in specific scenarios.
- Q: Can steel pipes be used for electrical conduit systems?
- No, steel pipes cannot be used for electrical conduit systems as they are conductive and can pose a safety risk. Non-metallic conduits, such as PVC or fiberglass, are commonly used for electrical wiring to ensure insulation and protect against electrical hazards.
- Q: How are steel pipes used in the manufacturing of boilers?
- Due to their strength, durability, and heat-resistant properties, steel pipes are essential components in the manufacturing of boilers. Boilers are utilized in various industrial and commercial applications to generate steam or heat water. The construction of boiler tubes is where steel pipes are primarily employed, as they function as the main heat transfer medium. Considering the high temperatures and pressure that these tubes are subjected to, it is crucial to use a material that can withstand such extreme conditions. Steel, with its excellent mechanical properties and corrosion resistance, is the ideal choice for this purpose. To create the boiler tubes, the manufacturing process involves shaping and sizing the steel pipes accordingly. These tubes are then connected to form a network of channels through which hot gases or water can flow. Depending on the boiler design requirements, the steel pipes utilized in this process are often seamless or welded. For the safety and efficiency of the system, the steel pipes used in boilers must meet stringent quality standards. They are subjected to tests to ensure their ability to withstand high pressure, temperature, and corrosion. Furthermore, inspections and tests such as ultrasonic testing and radiographic examination are conducted to identify any defects or flaws that might compromise the performance of the boiler. In conclusion, steel pipes play a critical role in the manufacturing of boilers by serving as the primary material for boiler tubes. Their strength, durability, and heat-resistant properties make them suitable for enduring high temperatures and pressure. These pipes undergo rigorous testing to guarantee their quality and reliability in creating efficient and safe boiler systems.
- Q: What is the lifespan of steel pipes?
- The lifespan of steel pipes can vary depending on various factors such as the quality of the steel used, the environment in which they are installed, and the maintenance and care they receive. However, typically, steel pipes can last for several decades or even up to a century if properly installed and maintained.
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SPIRAL STEEL PIPE 36’‘ 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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