The researcher started to compare the materials found in the market to check the properties of hardness and durability because of the suspicion that the metal materials in the market are still suitable for sale or should be developed. So the researchers selected three different commercial metal cans: sweetened condensed milk cans, fresh milk cans, and fish cans. Used to test the hardness and durability by using a vickers hardness tester (HVS-1000 Digital Micro Vicker Hardness Tester). In conclusion, it was found that the average hardness of fresh milk cans was 129.98 HV ± 10.91, sweetened condensed milk cans had a hardness of 47.84 HV ± 2.27, canned fish had a hardness of 48.84 HV ± 3.42, fresh milk cans had higher hardness than sweetened condensed milk cans and fish cans, respectively.