ASTM A213 T91 boiler tube 5698
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 30000 kg/month
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Alloy pipe stock grade A335P11/P22/P12/P91/P92/P9/P5 A213 T11/T22/T12/T91/T91/T9/T5
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 is hot rolled steel pipe? What is a cold drawn steel tube?
- General use seamless steel tube: is with 10, 20, 30, 35, 45# and other high-quality carbon steel, 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or cold rolled. Seamless tubes made of low carbon steel, such as 10, 20, are mainly used for fluid delivery pipelines. 45. Seamless tubes made of medium carbon steel such as 40Cr, used for the manufacture of mechanical parts, such as parts of automobiles and tractors. General use of seamless steel pipe to ensure the strength and flattening test. Hot rolled steel tubes are delivered in hot rolling or heat treated conditions. Cold rolled in heat treated state.
- Q: What is the maximum bending radius for steel pipes?
- The maximum bending radius for steel pipes typically depends on the specific grade and diameter of the pipe, but generally, it ranges from three to five times the pipe's outer diameter.
- Q: How do you calculate the flow rate of water in steel pipes?
- To calculate the flow rate of water in steel pipes, you need to know the pipe diameter, length, and the pressure difference between the inlet and outlet. By using the Darcy-Weisbach equation or other relevant hydraulic formulas, you can determine the flow rate based on these parameters.
- Q: What are the different methods of threading steel pipes?
- There are several methods of threading steel pipes, including manual threading, machine threading, and dielectric threading. Manual threading involves using a manual pipe threader or a handheld die to create the threads on the pipe. Machine threading, on the other hand, utilizes power-driven machines that can thread multiple pipes simultaneously, increasing efficiency and accuracy. Dielectric threading is a specialized method that uses a high-frequency electrical current to generate threads on the pipe, which is commonly used for stainless steel pipes.
- Q: How are steel pipes protected against external mechanical damage?
- Steel pipes are protected against external mechanical damage through various methods. One common method is the use of protective coatings. These coatings provide a physical barrier between the steel surface and external forces, such as impact or abrasion. Coatings can be applied through processes like painting, epoxy coating, or wrapping the pipe with materials like polyethylene or polypropylene. Another method of protection is the use of external casing or encasement. Casing pipes are installed around the steel pipes to provide an additional layer of protection. These casing pipes are typically made of materials like concrete, PVC, or ductile iron, which are resistant to external mechanical damage. Furthermore, steel pipes can be protected by using supports and restraints. Properly designed supports and restraints help to distribute external forces evenly and prevent excessive stress or deformation on the pipe. This includes using hangers, clamps, or brackets to secure the pipe in place and minimize the risk of mechanical damage. In addition, steel pipes can be protected by implementing measures to prevent accidental impacts or collisions. This can involve installing protective barriers, fencing, or warning signs to alert people to the presence of pipelines and prevent unintentional damage. Overall, a combination of protective coatings, casing, supports, and preventive measures is utilized to ensure that steel pipes are safeguarded against external mechanical damage. These measures help to maintain the structural integrity of the pipes and ensure their long-term performance and reliability.
- Q: Can steel pipes be used for conveying corrosive substances?
- No, steel pipes are not recommended for conveying corrosive substances as they are prone to corrosion themselves.
- Q: How do steel pipes resist corrosion?
- Steel pipes resist corrosion through a process called passivation, wherein a protective layer of oxide forms on the surface of the steel, preventing further oxidation and corrosion. Additionally, the pipes can be coated with anti-corrosive materials or undergo treatments such as galvanization or lining to enhance their resistance against corrosion.
- Q: How do steel pipes compare to other pipe materials like PVC or copper?
- Steel pipes have several advantages over other pipe materials like PVC or copper. Firstly, steel pipes are incredibly durable and can withstand high levels of pressure and extreme temperatures, making them suitable for a wide range of applications. Secondly, steel pipes have excellent resistance to corrosion, which ensures their longevity and reduces the need for frequent maintenance or replacement. Additionally, steel pipes have a higher strength-to-weight ratio compared to PVC or copper, making them more robust and capable of handling heavy-duty tasks. However, steel pipes can be more expensive and require special equipment for installation. Overall, steel pipes are a reliable and versatile option that offers superior durability and performance compared to other pipe materials.
- Q: Where is the difference between seamless steel pipe and welded pipe?
- In appearance, seamless steel pipe and welded steel pipe difference in the welded pipe wall welded tendons, and seamless No.
- Q: How are steel pipes protected from damage during transportation?
- Steel pipes are typically protected from damage during transportation through various methods such as wrapping them in protective coatings, using foam inserts, securing them with straps or braces, and placing them in sturdy packaging materials to prevent any movement or impact. Additionally, pipes may also be stored and transported in specialized containers or racks specifically designed for their safe transportation.
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ASTM A213 T91 boiler tube 5698
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 30000 kg/month
OKorder Service Pledge
OKorder Financial Service
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