Stainless steel as the common ferritic and austenitic stainless steels due to their low chromium content. Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim usually being to produce a 50/50 mix, although in commercial alloys the ratio may be 40/60. They are characterized by high chromium (19–32%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. Duplex stainless steels have roughly twice the strength compared to austenitic stainless steels. Their mixed microstructure provides improved resistance to chloride stress corrosion cracking in comparison to austenitic stainless steels Types 304 and 316. The properties of
The Stainless Steel Rat the past to 1975, making events happen in and around 34,573 (in the 346th century) – although Professor Coypu also mentions that they are now using a different calendar to the Gregorian calendar. Specifics of the new calendar are never mentioned. "The Stainless Steel Rat", "The Stainless Steel Rat Saves the World" and "The Stainless Steel Rat for President" were adapted into comic strip form in early issues of "2000 AD", written by Kelvin Gosnell and drawn by Carlos Ezquerra. Ezquerra drew Jim with an appearance modelled on the actor James Coburn. They appeared in the following issues of "2000