Anti-corrosion performance of nickel-chromium-molybdenum (nickel-chromium-molybdenum steel) C-type alloys in the the historic chemical process industry and known versatility. They not only resist all the ammonia in a large temperature range, they also resist attack caused by solutions of the chlorides and other halides insidious types, especially pitting the slit attack and stress corrosion cracking. In technical design Hastelloy goals? C - 2000? Alloy * greater versatility, compared with the traditional nickel-chromium-molybdenum alloy. It is through the use of the high chromium content (23 wt%), a high molybdenum content (16 WT%), and a small, but effective, except copper (WT 1.6%). The copper was found to provide enhanced product form C - 2000 alloy plate, sheet, strip, billet, bar, wire, welding rods, pipes and tubing.