The hardness of the die steel is determined by hardness testing. Hardness testing is a method of measuring a material's ability to resist external forces and is often used to evaluate a material's hardness and wear resistance.
Common die steel hardness testing methods are Rockwell hardness test, Brinell hardness test, and Vickers hardness test.
The Rockwell hardness test is one of the most commonly used hardness testing methods. It determines the hardness by applying a certain amount of pressure to the surface of the material and then measuring the diameter of the indentation. There are three types of Rockwell hardness tests: Rockwell C, Rockwell B and Rockwell A. Rockwell C is suitable for materials with hardness greater than HRC60, Rockwell B is suitable for materials between HRC20 and HRC60, and Rockwell A is suitable for materials with hardness less than HRC20.
The Brinell hardness test is another commonly used hardness testing method. It determines the hardness by applying a certain amount of pressure to the surface of the material and then measuring the diameter of the indentation. There are two types of Brinell hardness tests: Brinell hardness HB and Brinell hardness HBS. Brinell HB is suitable for materials with hardness greater than HB450, and Brinell HBS is suitable for materials with hardness less than HB450.
The Vickers hardness test is a method commonly used to measure the hardness of sheet materials. It determines hardness by applying a certain amount of pressure to the surface of the material and then measuring the diagonal length of the indentation. There are two types of Vickers hardness tests: Vickers hardness HV and Vickers hardness HVT. Vickers hardness HV is suitable for materials with hardness less than HV500, and Vickers hardness HVT is suitable for materials with hardness greater than HV500.
When performing a hardness test, a hardness tester or hardness tester needle is used to apply pressure, and a microscope or optical instrument is used to measure the diameter or diagonal length of the indentation. Depending on the hardness test method, different hardness values can be obtained, such as Rockwell, Brinell or Vickers.
The hardness of the mold steel is critical to the life and performance of the mold. Normally, the harder the die steel, the better its wear and corrosion resistance, but it will also lead to an increase in the brittleness of the material. Therefore, when selecting die steel, it is necessary to determine the appropriate hardness range according to the specific use requirements and working environment.
In conclusion, the hardness of mold steel is determined by hardness testing methods, and common hardness testing methods include Rockwell hardness test, Brinell hardness test, and Vickers hardness test. According to different test methods, different hardness values can be obtained, which are used to evaluate the hardness and wear resistance of the die steel. Choosing the right hardness range of mold steel can improve the service life and performance of the mold. Mould Steel King and Peace Mould Steel Mould Steel.