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:Can steel pipes be used in earthquake-prone areas?: Yes, steel pipes can be used in earthquake-prone areas. Steel is a strong and durable material that can withstand the forces generated during an earthquake. The flexibility and ductility of steel allow it to absorb and dissipate the energy of seismic waves, reducing the risk of structural failure. Additionally, the ability to weld steel pipes allows for the construction of robust and earthquake-resistant structures. However, it is important to ensure proper engineering and construction practices are followed to ensure the steel pipes are installed and connected correctly to maximize their earthquake resistance. Local building codes and regulations should also be considered to ensure compliance and safety in earthquake-prone areas.

Q:How are steel pipes used in the construction of power plants?: Steel pipes are widely used in the construction of power plants as they serve multiple purposes. They are primarily used for transporting various fluids, such as water, steam, and fuel, throughout the plant. Steel pipes are also used for the construction of boilers, heat exchangers, and condensers, which are essential components in power generation. Additionally, steel pipes are utilized in the construction of cooling systems, air ventilation systems, and structural supports within power plants. Overall, steel pipes are crucial for the efficient and reliable operation of power plants.

Q:How do steel pipes perform in high-temperature environments?: Steel pipes perform well in high-temperature environments due to their excellent heat resistance and thermal conductivity. The strength and structural integrity of steel pipes remain largely unaffected, making them ideal for applications such as steam lines, boiler tubes, and high-temperature industrial processes.

Q:Can steel pipes be used for structural supports?: Yes, steel pipes can be effectively used as structural supports due to their high strength, durability, and ability to withstand heavy loads.

Q:What is the difference between galvanized iron pipe and galvanized steel pipe? Or called different, in fact, is referred to as galvanized pipe?: Just name different, all refers to GB/T 3091-2015 "low pressure fluid transport welding pipe" contained in the galvanized pipe.Galvanized pipe means zinc plated, suitable for water, air, heating, steam and gas and other low pressure fluid conveying straight welded steel pipe, longitudinal submerged arc welding (SAWL) steel pipe and spiral seam submerged arc welding (SAWH) steel pipe.

Q:Are steel pipes suitable for use in chemical plants?: Yes, steel pipes are suitable for use in chemical plants. Steel pipes offer excellent resistance to corrosion, high durability, and can withstand high temperatures and pressures commonly found in chemical processing. Additionally, steel pipes can be easily welded, making them versatile for various chemical applications.

Q:What is the process of coating steel pipes?: The process of coating steel pipes involves several steps. First, the pipes are cleaned to remove any dirt, rust, or other contaminants. Then, a primer is applied to enhance adhesion and provide a protective layer. Next, the pipes are coated with a specialized coating material, such as epoxy, polyethylene, or zinc, depending on the desired level of corrosion resistance. This coating is applied using various methods, including spraying, dipping, or wrapping. Finally, the coated pipes undergo a curing process, which allows the coating to harden and form a durable barrier against corrosion.

Q:How to identify stainless steel pipe and steel pipe?: Steel pipe according to the production method can be divided into two categories: seamless steel pipe and pipe joints, pipe joints as welded steel pipe.1. seamless steel tube according to the production methods can be divided into: hot-rolled seamless pipe, cold drawn tube, precision steel tube, heat expansion tube, cold spinning tube and extrusion tube.Seamless steel tubes are made of high quality carbon or alloy steel. They are hot-rolled and cold-rolled (drawn).Bundled steel pipe2. welded steel pipe for different welding process and divided into the furnace pipe welding (ERW) pipe and automatic arc welding, because of the different forms of welding seam welded pipe and spiral welded pipe is divided into two kinds, end its shape is divided into circular welded and shaped (square, flat) pipe.

Q:What is the difference between API 5L and ASTM A106 steel pipes?: API 5L and ASTM A106 are two commonly used specifications for seamless carbon steel pipe. While both specifications cover similar materials, they have different requirements for chemical composition, manufacturing processes, mechanical properties, and testing. API 5L is a specification created by the American Petroleum Institute (API) for line pipe used in oil and gas transportation. It covers seamless and welded steel pipe suitable for use in conveying gas, water, and oil in the natural gas and petroleum industries. API 5L specifies the minimum requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes, with different chemical composition and mechanical properties. On the other hand, ASTM A106 is a specification developed by the American Society for Testing and Materials (ASTM) for seamless carbon steel pipe for high-temperature service. It covers seamless carbon steel pipe for high-temperature service in NPS 1/8" to NPS 48" inclusive, with nominal (average) wall thickness as given in ANSI B36.10. ASTM A106 provides requirements for chemical composition, manufacturing processes, mechanical properties, and testing. One key difference between API 5L and ASTM A106 is the intended use of the pipe. API 5L is specifically designed for transmission of liquid and gas, while ASTM A106 is used for high-temperature service. The chemical composition and mechanical properties of the steel may also vary between the two specifications, depending on the grade and type of steel being used. In summary, while both API 5L and ASTM A106 are widely used specifications for carbon steel pipe, they have distinct differences in terms of their intended use, chemical composition, manufacturing processes, mechanical properties, and testing requirements. It is important to carefully consider these factors when selecting the appropriate steel pipe for a specific application.

Q:How are steel pipes used in construction?: Steel pipes are commonly used in construction for various purposes such as structural supports, plumbing systems, and underground utility installations. They provide strength, durability, and flexibility, making them suitable for carrying fluids, gases, and structural loads. Steel pipes are often used in the construction of buildings, bridges, and infrastructure projects, ensuring reliable and long-lasting performance.

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