Ujian kekerasan biasa termasuk: Rockwell Hardness (HR), Surface Rockwell Hardness (HR), Vickers Hardness (HV), Micro Vickers Hardness (HV), Knoop Hardness (HK), Brinell Hardness (HB) , Leeb hardness (HL) (rebound kaedah), ujian kekerasan ultrasonik (UCI), kekerasan pantai (SHORE).
Masa siaran: Sep-08-2022