Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular ...

He noticed that some of his samples didn’t rust and were difficult to etch. These alloys contained around 13% chromium. The first application of these steels was in cutlery for which Sheffield ...