201 Stainless steel exhaust pipe stainless steel pipe fittings
201 Stainless steel pipe description
201 stainless steel is another popular grade of stainless steel used in various applications, including pipes and tubing. It belongs to the austenitic stainless steel family, similar to 304 stainless steel, but with some key differences in composition and properties. Here is a description of 201 stainless steel pipes:
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Corrosion resistance: 201 stainless steel offers good resistance to corrosion, although it is generally considered less corrosion-resistant than 304 stainless steel. It can withstand exposure to moisture and mild atmospheric conditions, but it may be more susceptible to tarnishing and surface discoloration over time.
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Lower nickel content: One of the main differences between 201 and 304 stainless steel is the lower nickel content in 201 stainless steel. It contains about 4-6% nickel, compared to the 8-10% nickel content in 304 stainless steel. The lower nickel content contributes to a more affordable price point for 201 stainless steel.
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High-temperature resistance: 201 stainless steel has good heat resistance and can handle moderate temperatures. However, it may not perform as well as 304 stainless steel in high-temperature applications, as it has a lower melting point and may experience some loss of strength and integrity at elevated temperatures.
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Formability: Similar to 304 stainless steel, 201 stainless steel is relatively easy to form and fabricate. It can be bent, welded, and shaped into various pipe configurations, allowing for flexibility in design and installation.
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Lower overall corrosion resistance: While 201 stainless steel offers decent corrosion resistance, it is generally not recommended for highly corrosive environments or applications. It may be more suitable for indoor or less harsh environments where exposure to corrosive agents is limited.
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Applications: 201 stainless steel pipes are commonly used in less demanding applications where cost-effectiveness is a priority. They can be found in residential plumbing, decorative applications, furniture, and some automotive components. However, they are less common in exhaust systems or applications that require high resistance to corrosion and extreme temperatures.
It's important to note that 201 stainless steel pipes may not have the same longevity and durability as 304 stainless steel pipes in harsh or corrosive environments. If you require enhanced corrosion resistance or higher-temperature capabilities, it is advisable to consider 304 stainless steel or other more corrosion-resistant grades for your specific application.
201 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.
201 Stainless steel tube parameter
chemical composition
| material |
201 |
| 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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