Corrosion issues in 304L equipment
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I just bought a new small container made of 304L material. Upon inspection inside, I found many rusty areas on the walls of the container. Could it be that the manufacturer used inferior 304 material instead, or did corrosion occur during the manufacturing process?
It’s difficult to determine the quality of materials available on the market these days, mainly because authentication is troublesome, and this makes it not worth it for small-scale items. The material may be present, but it may also be the result of the carbon steel material being removed. For reference.
It’s likely that the chlorine-containing medium caused corrosion, or the nickel content inside was insufficient. We once encountered rusting on stainless steel pipes we purchased as well, due to an inadequate nickel content
Could you please explain in detail what application scenario this is being used in?
The quality of 304L material is unreliable; 316 is a better choice. It’s also possible that the material was contaminated during processing steps such as grinding, rust removal, or sandblasting
Not yet used; it has only been rinsed with water a few times
This stainless steel is way too soft :lol
What was the condition before washing? If there is no rust before washing, it is possible that materials such as 201 stainless steel are being used, along with a high concentration of chloride ions in the water
The material has been contaminated; it seems there’s an issue with the manufacturer’s quality control!
With this appearance, it’s likely that the quality is substandard; take advantage of the fact that the warranty period hasn’t expired yet and contact him right away