ThePipingMart Blog Metals 7CR17 vs 440C Stainless Steel – What’s the Difference

7CR17 vs 440C Stainless Steel – What’s the Difference

7cr17 vs 440c Stainless Steel

When it comes to stainless steel, there are many different types available on the market. Two of the most popular types are 7cr17 and 440c stainless steel. But what’s the difference between these two materials? Let’s take a deeper look at both 7cr17 and 440c stainless steel and explore their differences.


7CR17 Stainless Steel

7cr17 is a Chinese stainless steel grade that is commonly used in the production of knives and other cutting tools. This type of steel has a carbon content of 0.70%, which makes it an excellent option for manufacturing knives due to its superior edge retention and toughness. It is also very corrosion resistant, making it ideal for use in wet environments such as near saltwater or in areas with high humidity levels. Additionally, 7cr17 is relatively easy to sharpen compared to other types of stainless steel.

440C Stainless Steel

440C is a widely-used stainless steel grade with carbon content ranging from 0.95% to 1.20%. This type of steel is known for its excellent wear resistance and strength, making it ideal for producing knives and other cutting tools that will be subjected to significant wear and tear over time. However, 440C has one major drawback—it can be difficult to sharpen compared to other types of steel because it’s tough and hard.

Difference between 7CR17 and 440C Stainless Steel

  • 7cr17 is a Chinese stainless steel that is similar to 440c in terms of composition and properties.
  • The main difference between 7cr17 and 440c is that 7cr17 contains more carbon, which gives it better edge retention and corrosion resistance.
  • 7cr17 is also a bit harder than 440c, making it a better choice for applications where wear resistance is important.
  • In terms of price, 7cr17 is typically cheaper than 440c.
  • Both 7cr17 and 440c are high-quality stainless steels that offer excellent performance in terms of corrosion resistance, edge retention, and hardness.




When choosing between 7cr17 or 440c stainless steel, it ultimately comes down to personal preference and intended use case. If you’re looking for superior edge retention and toughness with good corrosion resistance, then 7cr17 is your best bet; however, if you want something with excellent wear resistance but can handle sharpening difficulty, then 440c may be more suitable for you. Ultimately, understanding the differences between these two types of stainless steel will help you make an informed decision about which material will best suit your needs.

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