Red(Indication)HRC40,(File-Hardness)HRC40 to 42/HV392 to412 Yellow(Indication)HRC45,(File-Hardness)HRC45 to 47/HV446 to 471 Yellow green(Indication)HRC50,(File-Hardness)HRC50 to 52/HV513 to 544 Green(Indication)HRC55,(File-Hardness)HRC55 to 57/HV595 to 633 Blue(Indication)HRC60,(File-Hardness)HRC60 to 62/HV697 to 746 Black(Indication)HRC65,(File-Hardness)HRC65 to 67/HV800 to 865
In order to do smithing work in the future, I bought it because I wanted to determine the hardness of cheap stainless steel blades etc at home that I will put on durability. Because of the narrow width of the Velcro which lids the case, may it be opened to some sort of beat when carrying it? I was a little anxious. Therefore, I put it in the paper box containing the case at the time of purchase, but because it is hard to put because it is thick because of the thickness of the Velcro tape I thought that this is a neck if it dares to use it every day, hardness check body There is no dissatisfaction with itself.
Evaluation of hardness before scraping and hardening judgment after quenching
On 2013-12-02 16:07:07
I think that it is the mast checker when judging whether or not the private beta can cut the material that I do not understand the feature. It reduces the risk of chipping or wearing down of the blade, and it is also useful for judging quenching after making your own cutlery. On the contrary, it can also be used to judge whether it can be annealed and shaved. I thought that it was high at the beginning, but that would save useless time and money.