How to test the hardness of the forged rivetless chain?

How to test the hardness of the forged rivetless chain?

Perhaps the most valuable and frequently used evaluation for the  forged chain, hardness testing has the purpose of investigating the properties of metal parts. Be careful, before testing the hardness of the forged rivetless chain, the surface of the parts should be cleaned up to remove the oxide, decarbonization and burr.