The ASTM A956/A956M-22 standard specifies the method of steel hardness test on the Richter scale. By using the Leeb hardness tester, the standard provides a nondestructive detection method for the measurement of steel surface hardness. This test uses the relationship between the Impact body and the surface rebound of the material to quickly assess the hardness value of steel. It is suitable for most steel products, especially in occasions where it is not suitable for traditional hardness testing. The standard specifies the test steps, equipment requirements and result conversion methods to ensure the accuracy and reliability of the test. This method is widely used in steel quality control, production monitoring and material performance evaluation.