Food Grade Sanitary ASTM A335 P9 1-40mm Stainless Steel Pipe
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Certification:ISO,SGS,Other
Model Number:201/202/304/304L/309s/310s
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Food Grade Sanitary Stainless Steel Pipe ASTM A335 P9 1-40mm
ASTM A335 P9 Stainless steel pipe description
Alloy composition: ASTM A335 P9 pipes are made from a ferritic alloy steel composition. The specific composition for P9 includes approximately 9% chromium and 1% molybdenum, along with other elements such as carbon, manganese, silicon, and small amounts of other alloying elements. This composition provides P9 with high-temperature strength and resistance to oxidation and corrosion.
High-temperature service: ASTM A335 P9 pipes are designed to withstand high temperatures and pressure in various industrial applications. They are commonly used in power plants, refineries, petrochemical plants, and other environments where elevated temperatures are encountered.
Corrosion resistance: P9 alloy steel pipes offer good corrosion resistance compared to carbon steel pipes. The chromium content in P9 forms a protective oxide layer on the surface, which helps to prevent corrosion in various environments. However, it's important to note that P9 is not a stainless steel grade and does not possess the same level of corrosion resistance as stainless steel alloys.
Seamless construction: ASTM A335 P9 pipes are typically produced in a seamless form, ensuring uniformity, strength, and integrity throughout the pipe. Seamless construction allows for efficient fluid or gas transfer and minimizes the risk of leakage.
Weldability: ASTM A335 P9 alloy steel pipes can be welded using appropriate welding techniques. However, preheating and post-weld heat treatment may be necessary to maintain the desired mechanical properties and prevent the formation of brittle structures.
Applications: ASTM A335 P9 alloy steel pipes are commonly used in high-temperature applications, such as power generation, chemical processing, and oil and gas industries. They are suitable for transporting high-temperature fluids and gases and can be used for structural components in high-temperature environments.
It's important to follow the specific requirements outlined in the ASTM A335 specification and consult with manufacturers or suppliers to ensure the suitability of ASTM A335 P9 pipes for your specific application.
ASTM A335 P9 Stainless steel pipe features
According to different uses, the requirements for various properties of stainless steel pipes are different, such as acid and alkali corrosion resistance, intergranular corrosion resistance and stress corrosion cracking performance, pitting resistance, climate corrosion resistance, high temperature and oxidation resistance. For use in high temperature environment, it is also required to have satisfactory high temperature persistent strength, durable plasticity, creep resistance and aging stability.
Stainless steel pipe is mainly used for auxiliary exchanger pipe, water heater pipe, main pipe, cooling water pipe and other pipes. Electricity, as the basis of national economic development, national economy and people's livelihood. The inner wall of the stainless steel pipe is smooth, the water transmission resistance is small, can withstand the erosion of high water flow rate, after solution treatment, the mechanical properties of the pipe and the matrix, the corrosion resistance is basically the same, the performance is excellent, and it is widely used in heaters, boilers, heat exchangers, condensers.
Seamless stainless steel pipe production process
China's production of seamless stainless steel pipes is mainly concentrated in Inner Mongolia Baotou Steel, Shanghai Five Steel (Group) Co., LTD., Great Wall Special Steel Co., LTD., Dalian Steel Plant, Fushun Steel Plant, Daye Special Steel Co., LTD., Chengdu Seamless Steel Plant, although the specific process equipment of each production facility is different. However, its production process is mainly divided into hot-rolled seamless stainless steel pipe production process, cold-working seamless stainless steel pipe production process and hot-extruded seamless stainless steel pipe production process.
ASTM A335 P9 Stainless steel tube parameter
chemical composition
| material | ASTM A335 P9 | |||||||
| chemical composition | C% | Cr% | Ni% | Mn% | Si% | N% | P% | S% |
| ≦0.15 | 16.0-18.0 | 3.5-5.5 | 5.50-7.50 | ≦1.00 | ≦0.25 | ≦0.060 | ≦0.030 | |
mechanical properties
| mechanical properties | Yield Strength | tensile strength | elongation | Hardness |
| ≧45 | ≧95 | ≧40 | ≦100 |
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The goods shall be delivered in strict accordance with the contract, and the consignee shall be notified within 48 hours after thegoods are delvered: Loading shall be carried out in strict accordance with the requlations. without overloading, bias and weiahtgathering
Food Grade Sanitary ASTM A335 P9 1-40mm Stainless Steel Pipe
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