304 stainless steel coil and 316 stainless steel coil? How to choose?

1. When the requirements for corrosion resistance are not high, 304 stainless steel is better because the unit price of 304 stainless steel is lower than 316 stainless steel.

2. When the use scene has high requirements for chloride ion corrosion resistance and heat resistance, 316 stainless steel is better. Because 316L stainless steel contains molybdenum (MO), the carbide formed by it is very stable, which can prevent the grain growth of austenite during heating and reduce the overheating sensitivity of the steel. In addition, molybdenum can make the passive film more compact and firm, so as to effectively improve the chloride ion (Cl -) corrosion resistance of stainless steel.

Considering the actual cost and durability of 316 stainless steel, in order to comprehensively consider the actual needs of 316 stainless steel.