Centric Alloys Cold Finished and Hot Finished Bars in Specialty Stainless (remelt grades), Nickel Based, Nickel Bearing Alloys, and Cobalt Alloys. Your source for Superalloys and other exotic … Cold Finished and Hot Finished Bars in Specialty Stainless (remelt grades), Nickel Based, Nickel Bearing Alloys, and Cobalt Alloys. Your source for Superalloys and other exotic …