Difference between 304 stainless steel and 316 stainless steel

The difference between 304 and 316 stainless steel can't be seen by naked eyes. Many people are confused when they see these figures. Today, qunkunmetal will take a look at the difference between 304 and 316 stainless steel.

First of all, 316 stainless steel contains Mo, which has better corrosion resistance than 304 stainless steel in high temperature environment. Therefore, engineers generally choose 316 parts in high temperature environment.

Secondly, there are differences between the two in terms of grades: 304 stainless steel corresponds to Chinese grade 0Cr18Ni9; 316 stainless steel corresponds to Chinese grade 0Cr17Ni12Mo2.

Thirdly, the main reason is to reduce the content of Cr, increase the content of Ni and increase the content of mo2% ~ 3%. Therefore, its corrosion resistance is stronger than 304, which is suitable for use in chemical industry, sea water and other environments. Similarly, the cost of 316 is higher than 304. Generally, 316 is used in places with higher requirements to replace 304.

In fact, with the naked eye can not see the difference between 304 and 316 stainless steel, there is a more intuitive identification method, the use of stainless steel potion for identification

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