M390 is a high-performance stainless powder metallurgy steel that is widely used in the field of tool manufacturing. Here's a quick rundown of what you need to know about M390:
1.Material and chemical composition:
M390 is a high-alloy stainless steel composed of the following elements: carbon (C), chromium (Cr), molybdenum (Mo), cobalt (Co), vanadium (V), steel (Fe), silicon (Si), manganese (Mn), phosphorus (P), and sulfur (S). Among them, the main alloying elements are chromium, molybdenum, and vanadium. The addition of these elements gives M390 steel excellent corrosion resistance and mechanical properties.
2.Pros & Cons:
The M390 powder steel cutter offers the following advantages:
High hardness: M390 steel can typically reach 60-62 HRC, making the tool have excellent cutting performance and wear resistance.
Good corrosion resistance: The high alloy composition gives M390 steel excellent rust resistance, especially in wet environments.
High wear resistance: M390 steel has good wear resistance, which makes the tool last longer.
Good toughness: Despite the high hardness, M390 steel still has good toughness, which can reduce the fragility of the tool.
Disadvantages: Difficult to process: Due to the high hardness and alloy composition of M390 steel, it is difficult to process and requires special tools and techniques.
Higher cost: M390 steel is a high-end steel that is expensive to manufacture, so it leads to a relatively high cost of cutting tools.
3.Hardness and toughness:
The hardness of M390 steel is usually between 60-62 HRC, which gives the tool a large cutting capacity and wear resistance. At the same time, despite the higher hardness, M390 steel retains good toughness and reduces tool fragility.
4.M390 Kitchen Knife**:
Knives made of M390 steel are relatively high, and a M390 kitchen knife usually costs between 500-2000 RMB, depending on the brand, manufacturing process, and knife design.
5.Comparison of M390 and 440C:
M390 steel has higher hardness, better wear resistance, and rust resistance than 440C steel. Although 440C steel has higher corrosion resistance, it has lower hardness and wear resistance compared to M390 steel. Therefore, if higher performance requirements are required, such as cutting capacity, wear resistance, and rust resistance, M390 steel is a better choice.