Does stainless steel rust?

Stainless steel = no rust.

Isn't this image strong among the general public?

However, I think it is common knowledge among those who work with metals that "even stainless steel rusts."

So why is it that the general public thinks that "stainless steel = rust-proof"?

There are many different types of stainless steel.

Stainless steel is an alloy whose main component is iron (Fe), as well as chromium (Cr) and nickel (Ni).

(I've heard of it being called stainless steel plating before...)

In addition, a wide variety of other elements are included in the package.

It is said that there are as many types of stainless steel as there are combinations of added elements.

Among these, the most commonly used and noticeable standard is SUS304.

This stainless steel does not require strength, hardness, or toughness, but it has excellent corrosion resistance, weldability, and workability.

Always good.

Therefore, it has a very wide range of uses.

This SUS304 has more than enough corrosion resistance under normal environments, so-called everyday life.

Rust will be hard to see unless the product is exposed to high temperatures, seawater, chemicals, etc.

(Rust may occur in invisible perforations over time.)

In addition, in everyday life, even SUS304 is likely to rust in situations where it is likely to rust, so we recommend stainless steel, which has higher corrosion resistance than SUS304.

In some cases, the word "res" is used.

The stainless steel that you see in your daily life is highly corrosion-resistant even in environments where it is difficult to rust.

As a result, the service is used.

Stainless steel = no rust.

I don't think it's a good idea to make it a permanent fixture.