What is the difference between 316l and 316?

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What is the difference between 316l and 316?

316L stainless steel and 316 stainless steel are widely used austenitic stainless steel, and they have a high degree of similarity in chemical composition and mechanical properties.

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What is the difference between 316l and 316?

[ Data:2024-02-04 View:6Times ]

316L stainless steel and 316 stainless steel are widely used austenitic stainless steel, and they have a high degree of similarity in chemical composition and mechanical properties. However, although their basic properties are very close, the two materials show some differences in some key details. Here are a few key differences between 316L and 316 stainless steel:


The difference in carbon content


The carbon content of 316L stainless steel is significantly lower than that of 316 stainless steel. Specifically, the carbon content of 316L stainless steel is controlled below 0.03%, which is lower than the upper limit of 0.08% carbon content of 316 stainless steel. This significant difference in carbon content makes 316L stainless steel more excellent in terms of corrosion resistance and toughness.


The difference in price


Due to the advantages of 316L stainless steel in corrosion resistance and toughness, the price of this material in the market is usually higher than 316 stainless steel. This price difference reflects the difference in the properties of the two materials.


Differences in application fields


Although both 316L and 316 stainless steels can play a role in a number of industries, there are some differences in the application areas for which they are more suitable. For example, 316L stainless steel, because of its excellent corrosion resistance and toughness, is often used in the manufacture of medical devices, chemical processing equipment and food processing equipment with high material requirements. 316 stainless steel is more used in the manufacture of pipes, water tanks and stoves and other areas with relatively low material requirements.


Differences in treatment methods after heat treatment


After heat treatment, 316L stainless steel usually needs to be pickled and polished, which can effectively remove surface oxides and impurities to ensure that its surface quality meets a high standard. In contrast, 316 stainless steel is usually brushed after heat treatment to give it a better surface texture and beauty.


In summary, although 316L and 316 stainless steels exhibit similar characteristics in many ways, these subtle differences between them allow them to show their unique performance advantages in different applications. Therefore, when choosing the appropriate type of stainless steel, users need to make an informed choice according to the specific application scenario and performance requirements.

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