1. Is it good to make knives from 440 steel?
1. 440B steel use: 440B steel is used for cutting tools, measuring tools, bearings, and valves. It is suitable for making blades for bayonets. Performance: 440b steel has higher hardness than 440A steel and higher toughness than 440C steel. Characteristics and application: 440B steel has higher hardness than 440A steel and higher toughness than 440C steel. 440B steel is used in cutting tools, gauges and bearings, valves.
2. The rust resistance of these three steels is good, 440A is better, and 440C is lower.
SOG SEAL 2000 uses 440A and Randall uses 440B for their stainless steel tools. 440C is very commonly used, and most American tools and some European tools mostly use 440C.
3. Hot rolling and performance of 304/440/304 stainless steel composite plate for knives and tools For knives and scissors used in daily life, people not only need to have lasting sharpness and wear resistance, but also hope that the cutting edge is easy to grind after being blunt.
4. 440C has good temperature performance and can also be used as corrosion-resistant high-temperature bearing steel. Good corrosion resistance (magnetic) tableware (knife), turbine blade hardening treatment, hardness higher than 440A steel (magnetic), can be used to produce high-quality blades, nozzles, valves, plate rulers, tableware, knives, such as medical scalpels, scissors, nozzles, bearings, etc.
5. 440 stainless steel is better to make a knife. Reason: 440C stainless steel is a martensitic type stainless steel with 0% carbon content, 16-18% chromium content, strong rust resistance, and is a high-quality stainless steel. 440C has good high-temperature dimensional temperature, so it can also be used as corrosion-resistant high-temperature bearing steel.
6. Is 440 steel good for knives? Tungsten carbide 440 steel is good for knives. 440 steel knives are made of new materials, the appearance design is good-looking, extremely sharp, easy to use 44 high-strength cutting tool steel, the carbon content is slightly higher, after proper heat treatment, you can obtain a higher yield strength, and the hardness can reach 58HRC, which belongs to the list of harder stainless steel.
Second, how about 440C stainless steel as a knife
1. Good corrosion resistance: 440C has excellent corrosion resistance, especially in high temperature and high pressure environments. Good cutting performance: Due to its chemical composition and the influence of the heat treatment process, Longji 440C has excellent cutting performance and is suitable for manufacturing parts that require high precision and smooth surfaces.
2. The corrosion resistance and toughness are very strong, and now they are more widely used in handmade knives and high-quality factory-made knives. 440C stainless steel use: 440C special steel has high hardness after quenching, good corrosion resistance (magnetic) tableware (knife), after turbine blade quenching, the hardness increases compared with 440A steel (magnetic), knife edge, nozzle, valve, ruler, cutlery (scissors).
3. 440c stainless steel carbon content C-2% This steel has good rust resistance, and it is a stainless steel more commonly used in imported mass production knives, with a chromium content of up to 16-18%, and it is also one of the stainless steels used earlier in the production of knives, which is quite popular.
4. The carbon content of 440C is slightly higher.
But it is more troublesome to deal with than 9cr18mov. Therefore, if you buy 440c knives, it is better to choose knives from famous foreign companies. Forget about the domestic ones. The domestic heat treatment is very low-grade. Hard, brittle knives abound. One moment you may be able to cut the wire, but the next you will break the tip of the knife because you stab the plank.
5. Due to its high carbon, this also makes the 440C knife more brittle. This is especially true when you compare it to other stainless steel knives. You may need to be careful when using this stainless steel knife. Manganese (Manganese) Another hardening element found in steel is manganese. Like carbon, manganese hardens steel.
6. 440C is a relatively high-end stainless steel, and the hardness usually reaches 56-5Rc. All three steels have good rust resistance, with 440A being better and 440C being lower. SOGSEAL 2000 uses 440A and Randall uses 440B for their stainless steel tools.