Challenge Time for Materials Engineers – Part 2

امپراتوری “زمخت و سنگین” آهن و فولاد رو به افول گذاشته و غیرآهنی ها و رنگین ها و کمیاب ها …

Last week, I upload here a file called ASTM Terminology Standards. After that, Mohammad Fouladi suggested to prepare a file …

Below is the ASTM A17 (the oldest standard I have) which withdrawn in 1945. The American Society for Testing and …