Hastelloy C Chemical composition Alloy % Ni Cr Mo Fe W Co C Mn Si V P S C Min. balance 14.5 15 4 3 Max. 16.5 17 7 4.5 2.5 0.08 1 1 0.35 0.04 0.03 C22 Min. balance 20 12.5 2 2.5 Max. 22.5 14.5 6 3.5 2.5 0.02 0.5 0.08 0.35 0.02 0.02 Hastelloy C Physical properties Density 8.9 g/cm³ Melting point 1325-1370 °C Hastelloy C Alloy minimum mechanical properties in the room temperature Alloy state Tensile strength Rm N/mm² Yield strength          R P 0.2 N/mm² Elongation A 5 % Hastelloy C22 690 283 40 Characteristic as below Hastelloy C22 is a omnipotent of nickel, chromium and molybdenum mixed alloy,with better corrosion resistance performance than other alloys,or example, Hastelloy C276 alloy, C4 alloy and 625 alloy. Hastelloy C22 have a good resistance performance to pitting,crevice corrosion and stress corrosion cracking, have excellent inoxidability water medium performance, including the wet-chlorine, nitric acid or oxidizing acid mixed acid with chloride ion.Meantime, Hastelloy C22 possesses perfect resistance to reduction and oxidation of processing enviroments,then it can be used in some complicated environment or with many different manufacture target factory depend on the omnipotent performance. Hastelloy C22 possess prominent resistance performance to different chemical environments,including strong oxidizing matter, such as iron chloride, copper chloride, chlorine,heat pollution liquid(organic and inorganic), formic acid, acetic acid, acetyl oxide, sea water and salting liquid and so on. Hastelloy C22 alloy can resist the grain boundary precipitate form when jointing heat affected zone, this performance made it can applied in many kinds of chemical processing. Hastelloy C Metallurgical structure Hastelloy C22 is face-centered cubic lattice structure. Hastelloy C Corrosion resistance Hastelloy C22 alloy suit for many kinds of chemical process industry which contain the oxidizing medium and reductant. High molybdenum and chromium content make it can resist the chloride corrosion, and tungsten make this corrosion resistance better. Hastelloy C22 is one of a few material that can resist the corrosion of moist chlorine, hypochlorite and chlorine dioxide, this alloyhave prominent corrosion resistanceto high concentration chlorate( iron chloride and copper chloride) Hastelloy C Application field Hastelloy C22 is widely used in the chemical field and petrifaction field, such as the element of chloride organic and catalyze system. This material especially suit for high temperature environments, impure inorganic acid and organic acid (such as formic acid and acetic acid), sea-water corrosion environments. Hastelloy C Other application field 1. Acetic acid/acetyl oxide 2.Acid dipping 3.Cellophane paper manufactures 4.Chloride system 5. Complicated mixed acid 6. Electrogalvanizing groove roller 7.Expansion bellows 8.Flue gas washer system 9.Geothermal well 10.Fluorine hydride furnace cleaner 11.Incineration cleaner system 12. Nuclear fuel regeneration 13. Pesticide manufacture 14.Phosphoric acid manufacture 15.Acid cleaning system 16.Plate heat exchanger 17. Selectivity filter system