What is another word for case hardened?
Pronunciation: [kˈe͡ɪs hˈɑːdənd] (IPA) 
"Case hardened" is a term that refers to an object that has been made harder on the surface while being softer underneath. There are several synonyms for "case hardened" that may be used depending on the context. Some of these synonyms include tempered, toughened, strengthened, fortified, and reinforced. These words are often used to describe materials or objects that have undergone a process that has made them more resilient or resistant to damage or wear. Whether it is steel that has been hardened for use in tools or glass that has been toughened for use in windows, there are many ways to describe the process of creating materials that can withstand regular use and wear.
