Secondary remelting has been adopted to further reduce the harmful elements P and S in the steel, make the composition more uniform, and improve the purity and compactness of the steel.Adding molybdenum, vanadium and other elements, so that the hardness of steel, wear resistance, temper resistance has been further improved.

  1. General Details

    7Cr17MoV Stainless Steel

    7CR17MOV special high-carbon alloy steel chromium produces an invisible but very dense chromium oxide film, preventing corrosion of the steel and making the tool durable. Molybdenum is mainly used to strengthen the corrosion effect of chromium in steel and keep the cutting tool sharp. Vanadium has the ability of deacidification and oxygen removal in steel, which makes the section crystallization of steel compact and has higher strength., at the same time, this kind of steel can make the cutter sharper, sharp durability is further improved, and to overcome the blade scratch, gap defects.

    Similar Grade

    execution standard ZEICIN Grade GB AISI JIS DIN
    GB 7Cr17MoV 7Cr17MoV ASTM 440A SUS 440A/AUS6

    Main chemical composition %

    C Cr Mn Si Mo V
    0.65~
    0.70
    16.40~
    17.10
    0.40~
    0.80
    ≤1.00 0.50~0.60 0.10~0.
    30
    Co S P Ni Nb W
    ≤0.01 ≤0.02 <0.4
    0

    Product details

    # Name Specification
    1 Steel grade 7Cr17MoV
    2 Size T:2.0mm above; W:250mm below(according to order)
    3 Tolerance according to order
    4 Technique Thickness: 2.0-3.0mm Cold Rolled/ Thickness:3.0mm above Hot Rolled
    5 Surface Annealing
    6 Application chef knife/ Kitchen knife/Army knife/outdoor knife/forged knife/Scissors/Haircut scissors/pet scissors/stainless steel ball

    Impact of Steel on Knife Performance and Popularity of 7Cr17MoV

    Understanding the importance of steel in knife-making is super crucial. It plays a major role in determining a blade’s key characteristics like hardness, strength, and edge retention, which directly affect its performance in different situations.

    Among the wide range of steel options out there, 7Cr17MoV steel has become quite popular for its awesome balance between affordability and functionality.

    That’s why it’s a top choice for both manufacturers and consumers who want a high-quality blade that performs amazingly without breaking the bank.

    With its exceptional durability and reliable cutting abilities, 7Cr17MoV steel is the way to go for those who value both quality and performance when choosing a knife.

    Basic Introduction to 7Cr17MoV Steel

    History and Origin

    Originating from China’s hardworking foundries, 7Cr17MoV steel quickly gained recognition in the knife world. It bridges the gap between affordability and functionality, creating its own legacy.

    This steel is similar to Japan’s AUS-8 and even has some relatives across the ocean like America’s 440B variant. It’s a fascinating fusion of East meets West in metallurgy.

    The popularity of 7Cr17MoV steel today is a testament to China’s evolving metalworking expertise. It perfectly suits the needs of many knife users and makers – cost-effective production without compromising quality. It offers durability, sharpness, and resistance to wear and tear, making it ideal for mid-tier knife requirements.

    As the world recognizes the value of high-quality yet affordable knives, 7Cr17MoV steel shines as an excellent example of good value. It’s no wonder it has gained favor with both knife enthusiasts and everyday users.

    The steel’s rise to prominence not only showcases its desirable properties but also tells the story of a region forging ahead in the art of steel making.

    Chemical Composition and Properties

    Composed of Carbon, Chromium, Molybdenum, and Vanadium, the chemical makeup of 7Cr17MoV contributes to its properties:

    • Carbon gives the steel its hardness and wear resistance.
    • Chromium enhances corrosion resistance and hardness.
    • Molybdenum boosts toughness and hardenability.
    • Vanadium, in smaller amounts, refines the steel’s grain structure and contributes to wear resistance.

    In comparison to other common steels:

    • When faced against the budget-friendly 440A steel, 7Cr17MoV stands out with better hardness and wear resistance.
    • It is slightly inferior to 440C in terms of rust resistance but superior in edge retention.
    • Compared to AUS-8, 7Cr17MoV offers similar corrosion resistance but tends to have harder and sharper edges.

    What is 7Cr17MoV?

    7Cr17MoV is a popular steel commonly used to make affordable yet durable survival knives and some chef’s knives. The MoV (or Cr) series of steels derive from China and are rated as upper mid-range steel in terms of quality. When it comes to getting the most bang for your buck, 7Cr17MoV stands out as a superior option.

    7Cr17MoV gets its name from specific chemicals the steel is partially composed of. 7Cr17MoV contains approximately 0.7% Carbon and 17% Chromium. The MoV indicates the addition of Molybdenum and Vanadium. You can find a more detailed breakdown of the steel’s composition below.

    This particular type of steels is a specifically modified 440A stainless steel that is composed of a higher level of Vanadium than other steels. A higher level of Vanadium contributes to greater strength, durability, and wear resistance. Basically, 7Cr17MoV is a steel that is built to last.

    7Cr17MoV steel is commonly used for:

    • Survival/outdoor knives
    • Hunting knives
    • Budget knives
    • Chef’s knives

    Pros and Cons of 7Cr17MoV:

    • Pros: Easy to sharpen, maintains good edge retention, budget-friendly
    • Cons: Softer, less premium

    Properties of 7Cr17MoV Steel

    By looking at the chemical composition of 7Cr17MoV, it can be determined that the steel has the following properties:

    • Edge Retention: 7Cr17MoV isn’t the best in terms of edge retention, but it’s decent by comparison. By this, we mean that you shouldn’t expect 7Cr17MoV to hold its own against high-end steels, but for its price, you will be pleasantly surprised by its decent edge retention.

    7Cr17MoV steel contains Sulphur and Phosphorous which make it more brittle and compromise edge retention, but the amounts of Carbon and Vanadium make up for it. Additionally, Carbon and Vanadium increase the hardness of the steel which further boosts edge retention.

    • Corrosion Resistance: 7Cr17MoV contains high levels of chromium which prevents staining and offers good corrosion resistance. Its high corrosion resistance makes 7Cr17MoV steel great for survival and outdoor knives. By instilling a proper maintenance routine, you can expect 7Cr17MoV steel knives to remain stainless for a good while, even with a moderate level of abuse.
    • Hardness: 7Cr17MoV contains high amounts of Carbon with the addition of Vanadium and Chromium, with the specific purpose of increasing the steel’s hardness. After 7Cr17MoV steel is heat-treated, it reaches a hardness of 60 HRC. What this means for you is that a 7Cr17MoV steel blade is hard enough to be reliable for both outdoor and general use.
    • Wear Resistance: For low-end steel, 7Cr17MoV offers great wear resistance, which can be attributed to the amount of carbon present in its composition. Even with a moderate level of abuse, 7Cr17MoV steel knives remain in decent condition for a good amount of time.
    • Toughness: We break this down a bit more below, but when it comes to steel, hardness and toughness are two entirely different things. Hardness refers to how well a metal can withstand abrasion, whereas toughness is determined by how well the steel can resist fracture.

    7Cr17MoV is a low-end steel with good hardness and great corrosion resistance, which causes low toughness, but it’s not the worst out there. It doesn’t stand out for its toughness but it will hold up relatively well.

    • Sharpness: 7Cr17MoV is relatively easy to sharpen, which is attributed to its relatively low hardness. However, because it is a softer steel, it tends to lose it sharpness more easily than other steels.

    Comparison with Other Popular Steels

    In the world of knife steels, comparisons are inevitable. Let’s stack 7Cr17MoV against some well-known competing materials.

    440A vs. 7Cr17MoV

    • When it comes to hardness and wear resistance, -7Cr17MoV surpasses 440A, making it an excellent choice for the practical user. With its exceptional durability and superior performance, it offers even greater value, ensuring long-lasting performance in various applications.

    440C vs. 7Cr17MoV

    • 7Cr17MoV is a stainless steel alloy that offers a great balance between rust resistance and edge retention. While it may be slightly less rust-resistant than 440C, it excels in maintaining sharpness over extended use. This makes it an excellent choice for applications where durability and long-lasting sharpness are important.

    AUS-8 vs. 7Cr17MoV

    • Both steels exhibit comparable corrosion resistance properties. However, 7Cr17MoV possesses a harder edge, providing potential advantages in terms of edge sharpness and durability. This enhanced hardness can result in improved cutting performance and prolonged edge retention, making it an attractive choice for applications that demand superior sharpness and longevity.

    VG-10 vs. 7Cr17MoV

    • VG-10, a high-quality steel, is renowned for its exceptional edge retention and toughness. However, for those seeking a more budget-friendly option that still meets everyday needs, 7Cr17MoV offers a cost-effective alternative. With its balance of performance and affordability, it’s a practical choice for various applications.

    154CM vs. 7Cr17MoV

    • When it comes to blade steels, 154CM shines with its superior performance and outstanding edge retention. On the other hand, if you’re looking for a more budget-friendly option without compromising functionality, 7Cr17MoV stands out as a reliable choice. With its balance of affordability and functionality, it’s a great option for those seeking a cost-effective solution without sacrificing performance.
  2. Download

    download the specification for 1.4117 Stainless Steel of ZEICIN

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