Why the salt industry using equipment is prefer the ss316 instead ss304

304 stainless steel and 316 stainless steel are more commonly used stainless stee, but from the perspective of corrosion resistance, 316 is better than 304 stainless steel. Especially after the material is passivated, its corrosion resistance will be greatly improved. We have verified the corrosion resistance of the two materials from the salt water experiment.

Machine material: Contacting part stainless steel 316, equipment base stainless steel