How to test the hardness of stainless steel plate?

For the thickness of stainless steel plate is different, the hardness tester is also different, the following is the relative introduction:

The thickness of stainless steel plate is greater than 1.2mm. Rockwell hardness tester is used to test HRB and HRC hardness (the difference between HRA, HRB and HRC in Rockwell hardness). .

Surface Rockwell hardness tester was used to test HRT and HRN hardness of stainless steel plates with thickness of 0.2 ~ 1.2mm. Stainless steel plates with thickness less than 0.2mm were tested for HR30Tm hardness using surface Rockwell hardness tester with diamond anvil base.

In stainless steel hardness testing, Rockwell hardness is a simple equipment, easy to operate, without professional inspectors, can directly read out the hardness value, high test efficiency, very suitable for factory use (Rockwell hardness tester working principle).

On the use of Rockwell hardness tester for stainless steel hardness testing, in stainless steel standards generally only stipulated HRC and HRB two scales. For annealed stainless steel materials, generally corresponding to each grade of stainless steel varieties specified that the hardness value should not be greater than a HRB value, generally in the range of 88-96HRB. For quenched and tempered martensitic stainless steel, generally correspond to each grade of stainless steel varieties, the hardness value is not less than a HRC value, generally within the range of 32-46HRC.

Only Rockwell hardness tester HRB and HRC scales (Rockwell hardness tester ruler of choice) are specified in the stainless steel standard. In fact, surface Rockwell hardness tester can also be completely applied to the detection of stainless steel. Because its principle is exactly the same as Rockwell hardness tester, only the test force is smaller. And its hardness value can be easily converted into HRB, HRC or Brinell hardness HB, Vickers hardness HV. The corresponding conversion tables can be found on the company's website. These conversion tables are derived from ASTM or ISO. For thin wall stainless steel tube, thin stainless steel plate, thin stainless steel belt, thin stainless steel wire, the use of surface Rockwell hardness tester will be very convenient. In particular, the latest portable surface Rockwell hardness tester and tube Rockwell hardness tester developed by our company can quickly and accurately detect the hardness of stainless steel plate, stainless steel belt and stainless steel tube as thin as 0.05mm and as thin as 4.8mm, which makes the problems that were difficult to solve in the past easily solved in China.

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