Choosing the right steel for your knife is crucial. The steel you choose is directly related to the performance and quality of your blade. There are many different types of steel, each with unique properties, and it can be challenging to know which one to select. In this article, we’ll discuss two commonly used steels in knife making, 7CR17MOV and 5CR15MOV, and the differences between them.
What is 7CR17MOV Steel?
7CR17MOV steel is a type of high-carbon martensitic stainless steel with excellent sharpness compared to other steels. It contains 17% chromium, giving it superior corrosion resistance and strength and a good edge retention. This makes it well-suited for making knives, scissors, surgical instruments and even razor blades.
What is 5CR15MOV Steel?
5CR15MOV Steel is a high-carbon, Martensitic stainless steel with excellent corrosion and wear resistance. It contains up to 0.15% Carbon, 1.0% Chromium, 5.0% Nickel, and small amounts of Molybdenum and Vanadium for enhanced strength and edge retention. This steel is also known for its good machinability compared to other grades of cutlery steel, which makes it ideal for making knives and utensils requiring high-quality blades that can remain sharp after repeated use.
Difference Between 7CR17MOV and 5CR15MOV Steel
Composition:
7CR17MOV is a Chinese stainless steel, and its chemical composition is similar to Japanese VG-10 steel. The steel has a high amount of chromium and vanadium, which offers excellent corrosion resistance and durability. In contrast, 5CR15MOV is a lower-grade Chinese stainless steel commonly used in kitchen knives. The steel has a somewhat lower amount of chromium and lacks vanadium, resulting in poorer performance.
Hardness and Toughness:
7CR17MOV has a Rockwell hardness of 58-60, making it relatively hard. Hard steel will retain its edge longer but will be more brittle and prone to chipping. On the other hand, 5CR15MOV is softer, with a hardness of 56-58. A softer steel will be less prone to chipping but will not hold its edge for long periods.
Sharpening and Maintenance:
Both 7CR17MOV and 5CR15MOV are stainless steel, which means they are resistant to rust and stains. However, 7CR17MOV is less durable than 5CR15MOV. Sharpening 7CR17MOV can be challenging due to its hardness, but once sharpened, it will retain its edge longer. 5CR15MOV, on the other hand, is easier to sharpen but must be sharpened frequently.
Price:
7CR17MOV is a higher grade steel than 5CR15MOV and, as a result, is more expensive. Knives made with 7CR17MOV can cost two to three times more than those with 5CR15MOV.
Application:
7CR17MOV is commonly used in high-end knives and performs well in many types, from pocket knives to hunting knives. 5CR15MOV is primarily used in kitchen knives, as it is unsuitable for heavy-duty tasks.
Conclusion:
When choosing between 7CR17MOV and 5CR15MOV, carefully considering your needs and intended use is essential. 7CR17MOV is harder, tougher, more durable and will hold its edge longer, while 5CR15MOV is softer and easier to sharpen. 7CR17MOV is more expensive, but it is well worth the investment if you need high-quality steel for your knife. On the other hand, if you’re looking for a more affordable and lower-grade steel, 5CR15MOV might be a good option if you’re looking for a kitchen knife. Ultimately, both steels have strengths and weaknesses and are suited for specific tasks.
Abhishek is a seasoned blogger and industry expert, sharing his insights and knowledge on various topics. With his research, Abhishek offers valuable insights and tips for professionals and enthusiasts. Follow him for expert advice on the latest trends and developments in the metal industry.
