1. Different standard materials:
304 stainless steel can withstand chemical oxidation; 304 is a material that must be used in the national pressure cooker standard. The standard material of stainless steel pressure cookers is above 304. Because there are not many pressure cooker production plants approved by the state, these factories are very honest, all of which are minimum standards Used 304 stainless steel material.
The 316 stainless steel high-end products are made of 10% nickel to make the stainless steel more durable and corrosion-resistant. This kind of stainless steel is called 18-10 stainless steel, which is "medical stainless steel", and there is no metal ion precipitation at all.
2. Different chemical composition:
First of all, 316 stainless steel contains Mo, which has better corrosion resistance in high temperature environments than 304 stainless steel. Therefore, in high temperature environments, engineers generally choose 316 material parts.
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.
3. The practical performance is different:
16 is mainly to reduce the content of Cr, increase the content of Ni and increase Mo2%~3%. Therefore, its corrosion resistance is stronger than 304, and it is suitable for use in chemical, seawater and other environments. Similarly, the cost of 316 is also higher than that of 304. Generally, 316 is used in places with higher requirements instead of 304.
4. Different maintenance methods:
Compared with 316 stainless steel, 304 has better corrosion resistance, oxidation resistance and processability.
