ASTM 304L 316L Matte Stainless Steel Tubing 150mm Corrosion Resistant Round Polished
 

ASTM 304L 316L Stainless steel pipe description

ASTM 304L and 316L are widely used stainless steel grades that conform to the specifications outlined by the American Society for Testing and Materials (ASTM). Here is a description of ASTM 304L and 316L stainless steel pipes:

1. Stainless Steel Grades:
   a. ASTM 304L: ASTM 304L is an austenitic stainless steel grade with low carbon content. The "L" signifies the low carbon variant of the standard grade 304. This low carbon content helps to minimize carbide precipitation during welding and enhances resistance to sensitization, making it suitable for applications involving high-temperature environments.
   b. ASTM 316L: ASTM 316L is also an austenitic stainless steel grade with low carbon content. The "L" denotes the low carbon variant of the standard grade 316. Similar to ASTM 304L, the low carbon content in 316L provides improved resistance to sensitization and intergranular corrosion, particularly in weldments.

2. Corrosion Resistance: Both ASTM 304L and 316L stainless steel pipes exhibit excellent corrosion resistance in a wide range of environments. They provide resistance to various corrosive substances, including acids, alkalis, chlorides, and other chemicals commonly encountered in industrial, marine, and chemical processing applications.

3. Weldability: ASTM 304L and 316L stainless steel pipes are easily weldable using common welding techniques. The low carbon content in these grades minimizes the risk of carbide precipitation and sensitization during welding, which can result in intergranular corrosion. However, proper welding procedures and filler material selection are important to maintain the corrosion resistance and mechanical properties of the material.

4. High-Temperature Strength: Both ASTM 304L and 316L stainless steel pipes exhibit good strength and mechanical properties at elevated temperatures. This makes them suitable for applications involving high-temperature environments, such as heat exchangers, exhaust systems, and boiler components.

5. Applications: ASTM 304L and 316L stainless steel pipes find applications in various industries, including oil and gas, chemical processing, food and beverage, pharmaceuticals, and architectural structures. They are commonly used for fluid transportation, heat exchangers, pressure vessels, piping systems, and other applications where corrosion resistance, durability, and cleanliness are required.

It is important to note that ASTM 304L and 316L are widely recognized and accepted international standards for stainless steel pipes. When selecting stainless steel pipes, it is advisable to consult with manufacturers or suppliers who can provide specific information on the product's compliance with ASTM specifications and its suitability for your specific application requirements.

ASTM 304L 316L 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 304L 316L Stainless steel tube parameter
 
chemical composition

mechanical properties

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