Roller pipes
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Outside diameter | 1/2”-12” |
Wall Thickness | 1.0 -12mm SCH40,60,80, etc. |
Tolerance | ±5% |
Material | Q195,Q215,Q235,Q345 |
Quality grade | First grade |
Section Shape | Round |
Surface Treatment | Hot rolled and ERW |
Technique | Hot rolled |
Ends | Threaded Ends, Grooved Ends |
Length | Less than 12m |
MOQ | 10 Metric Ton or as your request if normal size |
Deliver Time | Stock |
Package | Nude pipe in bundle or as your request |
Payment terms | T/T,L/C |
Standard | GB/T3091-2008; BS1837-1985; ASTM A53/A53M-07; ASTM A513-07; ASTM A252; JIS G3444-06; JIS G3452-2010; EN10255; DIN2440 |
Main Usage Relevant Size | 1. Water Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 60-273mm 2. Threaded/Screwed Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.3-165.1mm 3. Structural Steel Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.7-190.7mm 4. Scaffolding Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 48mm 5. Straight Seam Welded Pipe Material: Q195/Q215/Q235/Q345B Outside Diameter: 48-273mm 6. Steel pipes with a longitudinal ERW Material: Q195/Q215/Q235/Q345B Outside Diameter: 21.3-273.1mm Standard: GB/T 3091-2008 |
- Q: What are the different methods of pipe lining for steel pipes?
- Pipe lining for steel pipes can be done using various methods, each with its own unique features and benefits. These methods include: 1. Spray lining: A specially formulated coating is sprayed onto the inside of the steel pipe, creating a protective barrier against corrosion and chemical damage. Spray lining is a popular choice for smaller pipes due to its cost-effectiveness and quick installation. 2. Cured-in-place pipe lining (CIPP): This method involves inserting a flexible liner into the steel pipe and then curing it in place using steam or hot water. CIPP restores the pipe's structural integrity and is commonly used for larger pipes without the need for excavation. 3. Slip lining: By inserting a slightly smaller diameter pipe into the existing steel pipe and filling the space between them with cementitious material, slip lining rehabilitates pipes with minor defects and extends their lifespan. 4. Fold-and-form lining: A flexible liner is inserted into the steel pipe and expanded to its diameter using mechanical or hydraulic processes. The liner is then folded and formed to fit the pipe's contours before being cured in place. Fold-and-form lining is suitable for pipes with irregular shapes or bends. 5. Coating lining: A protective coating is applied to the inside surface of the steel pipe using spraying, brushing, or rolling methods. This coating acts as a barrier against corrosion and chemical damage and is commonly used for large pipes or those in harsh environments. Each method has its own advantages and disadvantages, and the selection will depend on factors such as pipe diameter, condition, budget, and project requirements. Consulting with a professional pipe lining contractor is crucial to determine the most suitable method for a specific steel pipe rehabilitation project.
- Q: How do you determine the required wall thickness for steel pipes?
- The determination of the necessary wall thickness for steel pipes involves the consideration of multiple factors and calculations. One of the main factors to be taken into account is the pressure to which the pipe will be exposed. As the pressure increases, a thicker wall is required to guarantee that the pipe can endure the internal forces. The material strength of the steel used for the pipe is also a significant factor. Different steel grades possess varying tensile strengths, which directly impact the required wall thickness. Tensile strength refers to the maximum stress a material can withstand before failing, making it crucial to select a steel grade capable of withstanding the expected pressure. Furthermore, the pipe's diameter is influential in determining the necessary wall thickness. Pipes with larger diameters typically necessitate thicker walls to maintain their structural integrity and prevent deformation under pressure. Engineers employ industry standards and formulas to calculate the required wall thickness. The American Society of Mechanical Engineers (ASME) B31 code is the most widely used standard, offering guidelines for designing pressure piping systems. The ASME code integrates safety margins, material properties, and pressure ratings to determine the appropriate wall thickness. Other factors, such as temperature, corrosion, and external loads, can also influence the necessary wall thickness. For instance, applications involving high temperatures may require thicker walls to prevent buckling or softening of the pipe. In conclusion, the determination of the required wall thickness for steel pipes involves the consideration of pressure, material strength, diameter, temperature, and other external forces. Engineers rely on industry standards and calculations to ensure the pipe's ability to safely withstand the intended operating conditions.
- Q: What are the different types of steel pipe caps?
- There are several different types of steel pipe caps, including threaded caps, socket weld caps, butt weld caps, and flanged caps.
- Q: What are the different threading options for steel pipes?
- The different threading options for steel pipes include tapered thread, straight thread, and multiple thread options. Tapered threads are commonly used for pipes that carry fluids or gases under pressure, as they provide a tight seal. Straight threads are used for pipes that require a secure connection but do not need to be sealed tightly. Multiple thread options, such as double and triple threads, are used for high-pressure applications where a stronger connection is needed.
- Q: What is the density of steel pipes?
- The density of steel pipes fluctuates based on the particular grade and composition of the steel employed. On the whole, steel pipes generally possess a density of approximately 7.8 grams per cubic centimeter (g/cm³) or 7800 kilograms per cubic meter (kg/m³). It should be emphasized that this figure may undergo slight variations contingent upon factors such as the manufacturing technique and the specific alloy integrated into the steel.
- Q: How are steel pipes used in the chemical industry?
- Steel pipes are widely used in the chemical industry for various purposes such as transporting chemicals, gases, and liquids. They are known for their strength, durability, and resistance to corrosion, making them suitable for handling corrosive substances. Steel pipes are used for transferring raw materials, intermediate products, and final products within chemical plants, as well as for connecting different equipment and machinery. They are essential for maintaining a safe and efficient flow of chemicals throughout the industry.
- Q: What are the different methods of joining steel pipes without welding?
- There are several methods of joining steel pipes without welding, including: 1. Mechanical Couplings: These couplings consist of two separate pieces that are attached to the ends of the pipes and then tightened together. They provide a secure and leak-proof connection without the need for welding. 2. Threaded Connections: In this method, the ends of the steel pipes are threaded to create a male and female connection. The pipes are then screwed together using pipe threads, providing a strong and reliable joint. 3. Flanged Connections: Flanges are used to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposite flange. Bolts are then inserted and tightened to create a tight seal. 4. Grooved Connections: This method involves grooving the ends of the steel pipes and then using grooved couplings to join them. The couplings have teeth that interlock with the grooves, creating a secure and rigid connection. 5. Compression Fittings: Compression fittings are used to join steel pipes by compressing a metal or plastic ring onto the pipe's outer surface. This creates a tight seal and a reliable connection, without the need for welding. 6. Adhesive Bonding: Special adhesives designed for metal bonding can be used to join steel pipes. The adhesive is applied to the surfaces of the pipes, which are then pressed together and left to cure, creating a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily disassembled. Each of these methods has its own advantages and limitations, and the choice depends on factors such as the specific application, pipe material, and the required strength of the joint.
- Q: What is the difference between steel pipe and concrete pipe?
- Steel pipe and concrete pipe are both commonly used for various applications, but they differ significantly in their material composition and properties. Firstly, the main difference lies in the materials used to manufacture these pipes. Steel pipes are made from steel, which is an alloy of iron and carbon. On the other hand, concrete pipes are made from a mixture of cement, aggregate (such as sand or gravel), and water. Secondly, steel pipes are known for their strength and durability. They can withstand high pressure, making them suitable for applications that require transporting fluids or gases under high pressure. Steel pipes also have a high resistance to corrosion, which is advantageous in environments where the pipe is exposed to moisture or chemicals. In contrast, concrete pipes are not as strong as steel pipes and are more prone to cracking or damage under high pressure. However, they are still capable of handling moderate pressure loads and are often used for drainage systems or sewage applications. Another significant difference is the installation process. Steel pipes are typically joined together using welding techniques, such as butt welding or socket welding. This creates a seamless and strong connection between the pipes. On the other hand, concrete pipes are often installed using rubber or gasketed joints, which are easier to assemble and disassemble. Cost is another factor where steel and concrete pipes differ. Steel pipes tend to be more expensive due to the higher cost of steel as a raw material and the additional labor required for welding and fabrication. Concrete pipes, on the other hand, are generally more cost-effective as the materials used in their production are more readily available and the installation process is simpler. In summary, the main differences between steel pipes and concrete pipes lie in their material composition, strength, resistance to corrosion, installation process, and cost. Steel pipes offer superior strength and durability, making them suitable for high-pressure applications and environments prone to corrosion. Concrete pipes, while not as strong, are cost-effective and commonly used for drainage systems or sewage applications.
- Q: 45 and 316 which steel tubes are of high hardness?
- 316 stainless steel by adding Mo element, the corrosion resistance, and high temperature strength has greatly improved, high temperature can reach 1200-1300 degrees, can be used in severe conditions. 316F stainless steel is easy to cut stainless steel with high sulfur content. Good corrosion resistance, easy processing, good smoothness, suitable for axial parts.
- Q: What is the lifespan of a steel pipe?
- The lifespan of a steel pipe can vary depending on various factors such as its quality, maintenance, and usage conditions. However, with proper care and maintenance, a well-made steel pipe can last for several decades or even more.
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Roller pipes
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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