Is LC200N Truly Rust-Proof?

When it comes to knife steels, LC200N is often touted as being “rust-proof”. But is this claim truly accurate? To answer this question, we need to delve into the properties of LC200N, its composition, and how it reacts to different environments. In this article, we will explore the rust-resistant properties of LC200N and determine whether it can truly be considered rust-proof.

What is LC200N?

LC200N is a high-nitrogen alloyed tool steel developed by Zapp Precision Metals. It’s known for its exceptional corrosion resistance and high toughness. This steel is often used in applications where high corrosion resistance is required, such as in marine environments. It’s also popular in the knife industry, particularly for diving knives and other tools that are frequently exposed to water.

What Makes LC200N Rust-Resistant?

The rust resistance of LC200N is primarily due to its high nitrogen and chromium content. Nitrogen enhances the steel’s pitting and crevice corrosion resistance, while chromium forms a passive layer on the steel’s surface that protects it from oxidation and corrosion. Additionally, LC200N has a relatively low carbon content, which further enhances its corrosion resistance.

Is LC200N Truly Rust-Proof?

While LC200N is highly rust-resistant, it’s not entirely rust-proof. No steel is truly rust-proof, as all steels can rust under certain conditions. However, LC200N is as close to rust-proof as you can get with current steel technology. It can withstand exposure to saltwater and other corrosive environments for extended periods without showing signs of rust. But if it’s exposed to highly acidic or extremely harsh conditions for a long time, it may eventually show signs of corrosion.

How to Maintain LC200N Steel?

Even though LC200N is highly rust-resistant, it still requires some maintenance to keep it in top condition. Here are some tips:

  • Clean your LC200N tool regularly, especially after exposure to corrosive substances or environments.
  • Although it’s not necessary, you can apply a thin layer of oil to the steel’s surface to provide an extra layer of protection.
  • Store your LC200N tool in a dry, well-ventilated area.


In conclusion, while LC200N is not entirely rust-proof, it’s one of the most rust-resistant steels available today. Its high nitrogen and chromium content make it highly resistant to corrosion, even in harsh environments. However, like all steels, it requires some maintenance to keep it in top condition. With proper care, an LC200N tool can last for many years without showing signs of rust.