ASTM A213 T91 boiler tube 1132

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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: How are steel pipes tested for quality?: Steel pipes are tested for quality through various methods such as visual inspections, dimensional measurements, and various mechanical and chemical tests. These tests include assessing the pipe's surface finish, checking for any defects or cracks, measuring its dimensions, conducting tensile and impact tests, and analyzing its composition. Additionally, non-destructive testing techniques like ultrasonic testing, radiography, and magnetic particle inspection are employed to ensure the pipes meet the required quality standards.

Q: What are the different types of steel pipe connections for oil and gas pipelines?: There are several different types of steel pipe connections used for oil and gas pipelines, including threaded connections, welded connections, flanged connections, and grooved connections. Each type has its own advantages and is selected based on factors such as the size of the pipeline, the pressure and temperature requirements, and the specific application.

Q: What is the average lead time for manufacturing steel pipes?: The average lead time for manufacturing steel pipes can vary depending on several factors such as the size and complexity of the order, production capacity, and current demand. However, it typically ranges from a few weeks to a few months.

Q: What is the difference between ERW and SAW steel pipes?: ERW (Electric Resistance Welded) steel pipes are manufactured by welding the edges of the steel strip or coil together to form a pipe. On the other hand, SAW (Submerged Arc Welded) steel pipes are manufactured by welding the steel plates or coils together using a submerged arc welding process. The main difference between the two is the method of welding used. SAW pipes generally have a higher strength and better dimensional accuracy compared to ERW pipes.

Q: Can steel pipes be used for underground sewage systems?: Yes, steel pipes can be used for underground sewage systems. Steel pipes have high strength and durability, making them suitable for carrying sewage and withstanding the pressure and environmental conditions underground. Additionally, steel pipes have excellent corrosion resistance properties, which is crucial for sewage systems that are exposed to moisture and various chemicals.

Q: How are steel pipes used in the construction of railways and transportation systems?: Various purposes necessitate the common use of steel pipes in the construction of railways and transportation systems. Bridges and tunnels, in particular, heavily rely on steel pipes. In bridge construction, steel pipes act as structural components, providing overall support and stability. As for tunnels, steel pipes serve as ventilation shafts, promoting air circulation and the removal of fumes, thus ensuring the safety of passengers and workers. Furthermore, steel pipes find utility in the construction of railway tracks. They are utilized as supports, offering a stable foundation for train travel. In this context, steel pipes are typically coated or galvanized to prevent corrosion and guarantee their longevity. Additionally, steel pipes are employed in drainage systems within railway stations and transport hubs, playing a crucial role in proper water management and the prevention of flooding. Another significant application of steel pipes in transportation systems lies in the construction of signposts and streetlights. In these structures, steel pipes often serve as the primary structural element, providing strength and durability. Their malleability and ease of fabrication make them a sought-after choice, as they can be shaped to meet specific design requirements. In summary, steel pipes assume a vital role in the construction of railways and transportation systems, offering structural support, ensuring adequate ventilation, facilitating drainage, and serving as key components in various structures. Their strength, durability, and versatility render them an ideal choice for these applications, contributing to the safe and efficient operation of transportation networks.

Q: What is the role of steel pipes in the renewable energy sector?: Steel pipes play a crucial role in the renewable energy sector by facilitating the transportation and distribution of various energy sources. One significant application of steel pipes is in the construction of pipelines for transporting natural gas, which is increasingly being used as a cleaner alternative to traditional fossil fuels. These pipelines are often made of steel due to its strength, durability, and resistance to corrosion, ensuring the safe and efficient delivery of natural gas to power plants and other energy consumers. Moreover, steel pipes are utilized in the installation of geothermal energy systems. Geothermal energy harnesses the heat from the earth's core to generate electricity or provide heating and cooling. Steel pipes are used to create geothermal wells, allowing for the extraction of hot water or steam from underground reservoirs. These pipes must withstand high temperatures and pressures, making steel an ideal material for this application. Additionally, steel pipes are employed in the construction of hydraulic systems for hydroelectric power plants. These plants rely on the force of flowing water to generate electricity, and steel pipes are used to convey water from the reservoir to the turbines. The durability and reliability of steel ensure the efficient transmission of water, enabling hydroelectric power plants to produce clean and renewable energy. In the renewable energy sector, steel pipes also play a role in the construction of solar power plants. Solar thermal systems use mirrors or lenses to concentrate sunlight and generate heat, which is then transferred to a fluid to produce steam and drive turbines. Steel pipes are essential for circulating and transferring this fluid, ensuring the effective operation of the solar power plant. In summary, steel pipes are indispensable in the renewable energy sector for their strength, durability, and resistance to corrosion. They enable the transportation of natural gas, the extraction of geothermal energy, the transmission of water in hydroelectric power plants, and the circulation of fluids in solar power plants. By facilitating the efficient distribution of various energy sources, steel pipes significantly contribute to the growth and sustainability of the renewable energy sector.

Q: What are the safety precautions for handling steel pipes?: To prevent accidents and minimize the risk of injury when dealing with steel pipes, it is crucial to implement various safety measures. Consider the following key safety precautions: 1. Personal Protective Equipment (PPE): Ensure that you wear suitable PPE, such as safety glasses, hard hats, steel-toed boots, and gloves. This will shield you from potential hazards, including falling objects, sharp edges, or chemical spills. 2. Proper Lifting Techniques: Employ correct lifting techniques to avoid strain or back injuries when lifting steel pipes. Bend your knees, maintain a straight back, and use your legs instead of your back to lift. Seek assistance or employ mechanical lifting equipment if the pipe is too heavy. 3. Secure Storage and Stacking: Organize the storage of steel pipes meticulously, ensuring that they are stacked and secured appropriately. Utilize suitable storage methods like racks or pallets to prevent pipes from rolling or falling. Avoid excessive stacking to maintain stability. 4. Inspect for Defects: Prior to handling steel pipes, examine them for defects like cracks, corrosion, or dents. Identifying and removing defective pipes is vital as they can pose serious safety risks. 5. Use Appropriate Handling Equipment: When moving or transporting steel pipes, make use of suitable equipment like forklifts, cranes, or hoists. Verify that the equipment is in good working condition and always adhere to the manufacturer's guidelines for safe operation. 6. Secure Transportation: When transporting steel pipes by vehicle, ensure that they are securely fastened to prevent shifting or falling during transit. Use restraints like straps or chains to secure the load. 7. Watch for Sharp Edges: Exercise caution when handling steel pipes as they may have sharp edges that can cause cuts or injuries. Wear gloves to protect your hands. 8. Communication and Training: Establish effective communication with your team members to ensure that everyone understands the correct handling procedures and safety precautions. Conduct training sessions on safe lifting techniques, equipment operation, and hazard identification. 9. Maintain a Clean Work Area: Keep the work area clean and free from debris, oil, or other slippery substances that may lead to slips or falls. 10. Follow Safety Guidelines: Always adhere to safety guidelines and procedures set by your organization or relevant regulatory authorities. These guidelines may include additional precautions specific to your work environment. By diligently following these safety precautions, you can significantly reduce the likelihood of accidents and injuries when handling steel pipes. Remember, prioritizing safety is paramount in any work environment.

Q: How are steel pipes classified based on their end connections?: Steel pipes can be classified based on their end connections into three main categories: threaded, socket-weld, and butt-weld.