Stainless Steel 304/316L/321 Difference

Stainless steel 304/316L/321 difference

304 and 316 stainless steel difference

In fact, with the naked eye can not see the difference between 304 and 316 stainless steel, many people see these figures are confused, today with me to look at the difference between 304 and 316 stainless steel.

First of all, 316 stainless steel contains Mo, which is better corrosion resistance than 304 stainless steel in high temperature environments, so in high temperature environments, engineers generally choose parts of 316 materials.

Secondly, there are also differences between the two from the brand; 304 stainless steel corresponding to the Chinese brand 0Cr18Ni9; 316 stainless steel corresponding to the Chinese grade 0Cr17Ni12Mo2.

Third, 316 mainly reduces Cr content, increases Ni content and increases Mo2%~3%. Thus, its corrosion resistance is stronger than 304, suitable for use in chemical, seawater and other environments, similarly, 316 cost is higher than 304, 316 is generally used in places with higher requirements, to replace 304.

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