ASTM A213 T91 boiler tube

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

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Supply Capability:: 30000 kg/month

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T91 alloy pipe is America national tree like ridge and America combustion new martensitic heat-resistant steel engineering company metallurgical materials laboratory research work. It is to reduce the carbon content of 9Cr1MoV steel on the basis of the content of sulphur, phosphorus, strictly limit the vanadium, niobium, adding small amount of alloying elements.

The number of K90901 T91 alloy tube

T91 alloy tube

T91 alloy pipe specifications: 8-1240 x 1-200mm

Overview of T91 alloy tube:

T91 alloy tubes for ferrite and Olympic alloy steel seamless steel tube boiler, overheating and heat exchanger belongs to (ASTM A213 / A213M-07a)

Use:

For low and medium pressure boiler (work pressure is generally not more than 5.88Mpa, the operating temperature at 450 DEG C) of the heating surface tube; used for high pressure boiler (work pressure is generally above 9.8Mpa, operate at a temperature of 450 DEG to 650 DEG C between) the heating surface tubes, economizer, superheater, reheater, petrochemical industrial pipe.

Heat treatment of T91 alloy tube:

The final heat of T91 treatment for normalizing and high temperature tempering, normalizing temperature 1040 C, the holding time of not less than 10 min, the tempering temperature is 730 to 780 DEG C, the heat preservation time is not less than 1h, the final heat treatment on Microstructure of tempered martensite

Q: What are the common applications of steel pipes in the water distribution system?: The common applications of steel pipes in the water distribution system include carrying potable water from the water treatment plants to homes and businesses, transporting water for irrigation purposes, and facilitating the flow of water in industrial processes. Steel pipes are often preferred due to their durability, resistance to corrosion, and ability to handle high water pressure.

Q: How are steel pipes used in the fabrication of storage tanks?: Steel pipes are commonly used in the fabrication of storage tanks due to their strength, durability, and versatility. These pipes serve various purposes throughout the tank fabrication process. Firstly, steel pipes are used for the construction of the tank's foundation. They provide a sturdy base for the tank, ensuring stability and preventing any potential structural issues. During the tank fabrication process, steel pipes are also used for the construction of the tank's shell. These pipes are welded together to create a cylindrical structure that can withstand the pressure and weight of the stored material. Furthermore, steel pipes are utilized for the installation of inlet and outlet pipes. These pipes allow for the controlled flow of materials into and out of the storage tank. Additionally, steel pipes are often used for the fabrication of support structures within the tank. These structures help to distribute the weight of the stored material and provide additional reinforcement to the tank. In terms of maintenance and repair, steel pipes are also essential. They are used for the installation of access points, such as manholes or inspection ports, which allow for routine inspections, cleaning, and any necessary repairs. Overall, steel pipes play a crucial role in the fabrication of storage tanks by providing a strong and reliable framework. They are used for the construction of the tank's foundation, shell, inlet and outlet pipes, support structures, and access points. With their durability and versatility, steel pipes ensure the integrity and functionality of storage tanks.

Q: How do steel pipes handle high-pressure applications?: Steel pipes are commonly used in high-pressure applications because of their inherent strength and durability. The high tensile strength of steel allows it to withstand the pressure exerted on the pipes without deforming or bursting. Moreover, steel pipes are resistant to corrosion, making them ideal for handling various types of fluids and gases under high-pressure conditions. Additionally, the seamless construction of steel pipes eliminates weak points and ensures their reliability and safety in high-pressure environments.

Q: How are steel pipes transported and stored?: Steel pipes are typically transported using trucks, trains, or ships, depending on the distance and quantity. These pipes are often stacked and secured with straps or chains during transportation to prevent any movement or damage. When it comes to storage, steel pipes are commonly stored in outdoor yards or warehouses. They are usually organized in neat rows or stacked on racks to maximize space and facilitate easy access. Additionally, pipes may be covered with weather-resistant materials to protect them from rust or corrosion during storage.

Q: What are the factors to consider when designing a steel pipe system?: When designing a steel pipe system, several factors need to be considered to ensure its functionality, durability, and efficiency. These factors include: 1. Pressure and temperature requirements: Determining the maximum pressure and temperature that the steel pipe system will be exposed to is crucial. This information is essential for selecting the appropriate pipe material, thickness, and jointing method to withstand the system's operating conditions. 2. Pipe material: Choosing the right material for the steel pipe system is important. Factors such as corrosion resistance, strength, and cost should be considered. Common materials for steel pipes include carbon steel, stainless steel, and alloy steel. 3. Pipe size and thickness: 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 affects the system's efficiency and must be chosen based on the anticipated flow rates and pressure losses. 4. Support and anchoring: Proper support and anchoring are critical to prevent sagging, movement, and stress on the steel pipe system. The design should consider the weight of the pipes, the fluid being transported, and any external forces that may act on the system. 5. Expansion and contraction: Steel pipes expand and contract with temperature variations, causing stress on the system. Expansion joints or loops should be incorporated to allow for thermal growth and contraction, preventing damage and distortion. 6. Fluid compatibility: 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. Accessibility and maintenance: Consideration should be given to the accessibility of the system for installation, inspection, and maintenance purposes. Proper access points, valves, and fittings should be included in the design to allow for easy maintenance and repairs. 8. Environmental factors: The steel pipe system may be exposed to various environmental conditions, such as extreme temperatures, humidity, or corrosive substances. These factors should be considered when selecting the pipe material, protective coatings, and insulation. 9. Regulatory compliance: Compliance with applicable industry standards, codes, and regulations is essential. The design should adhere to safety guidelines and applicable building codes to ensure the pipe system's integrity and longevity. 10. Cost consideration: Finally, the overall cost of the steel pipe system, including material, installation, maintenance, and energy consumption, should be taken into account. 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 is the average lifespan of steel pipes?: The average lifespan of steel pipes varies depending on various factors such as their quality, usage, and maintenance. However, under normal conditions, well-maintained steel pipes can last for several decades or even longer.

Q: What are the different coating options available for steel pipes?: Some of the different coating options available for steel pipes include epoxy coatings, polyurethane coatings, fusion-bonded epoxy coatings, zinc coatings, and asphalt coatings.

Q: What's the difference between steel pipe and pipe fittings?: Pipe classification: steel pipe seamless steel pipe and welded steel pipe (tube) two categories. It can be divided into round tube and special-shaped tube according to the sectional shape. The round steel tube is widely used, but there are some special-shaped steel tubes such as square, rectangle, semicircle, hexagon, equilateral triangle and octagon.

Q: What kinds of steel pipe are divided into?: The steel pipe seamless steel pipe and welded steel pipe (tube) two categories. According to the section shape and can be divided into round tube shaped tube, round steel pipe is widely used, but there are also some square, rectangular, semicircular, hexagonal, triangular, octagonal shaped steel tube.Seamless steel pipe: seamless steel pipe is ingot or solid billet made by capillary hole, then hot, cold or cold drawing. Made of seamless steel pipe specifications with outer diameter * wall thickness mm. Number of seamless steel pipe cold and hot points of seamless steel pipe (DIAL) two categories.

Q: What are the standard dimensions and weight of steel pipes?: The specific type and grade of steel pipes determine the variation in standard dimensions and weight. Nonetheless, the industry widely accepts some common standard dimensions and weight ranges. Seamless steel pipes typically have standard dimensions ranging from 1/8 inch to 60 inches in outer diameter (OD) and from 10.3 mm to 914.4 mm in wall thickness. The weight of seamless steel pipes varies depending on the size and length, ranging from a few kilograms to several metric tons. Similarly, welded steel pipes have standard dimensions ranging from 1/2 inch to 80 inches in OD and from 3.2 mm to 25.4 mm in wall thickness. The weight of welded steel pipes can also greatly vary, ranging from a few kilograms to several metric tons. It is worth noting that the dimensions and weight of steel pipes can be customized according to specific project requirements. Moreover, different countries or regions may have their own standards and specifications for steel pipes. Therefore, it is always advisable to consult the relevant standards and guidelines when determining the dimensions and weight of steel pipes for a particular application.

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