What Is 4040 - Write the name of the state or foreign. Write your date of birth (mm/dd/yyyy). All 440 steels are hardenable, meaning they gain additional strength via heat treatment, and. State or country of birth:
Write the name of the state or foreign. State or country of birth: All 440 steels are hardenable, meaning they gain additional strength via heat treatment, and. Write your date of birth (mm/dd/yyyy).