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Hastelloy C-22

Thunder Threads recognizes HASTELLOY C-22® as a very versatile nickel-chromium- molybdenum-tungsten alloy with better corrosion resistance than other Ni-Cr-Mo alloys available today. 

Such comparison includes hastelloy C-276 fasteners and C-4 alloys and alloy 625. It should be noted that C-22 alloy does have a greater resistance to pitting, crevice corrosion, and stress corrosion cracking.  Thunder Threads is capable of supplying Hastelloy C22 hex cap screws, bolts, nuts, studs and socket head cap screws for your any project throughout the world.  We have been reknown for our ability to work with corrosive resistant fasteners such as hastelloy C-276.  In fact, we keep a large amount of hastelloy C276 fasteners in stock and available to ship at a moments notice.  Hastelloy C-22 has outstanding resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chloride ions. Hastelloy C-22 alloy offer great resistance to processes in which conditions occur in streams. It should be noted that because of such versatility of Hastelloy c-22, it can be used where "upset” conditions are likely to occur or in multi-purpose plants.

Thunder Threads offers fasteners in C-22 alloy because they have outstanding resistance to a broad range of chemical process environments, including strong oxidizers such as cupric and ferric chlorides, chlorine, hot contaminated solutions (organic and inorganic), formic and acetic acids, acetic anhydride, and seawater and brine solutions. It is widely recognized that C-22 alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable and a good fit for most chemical process applications in the as-welded condition.

Several applications of use for C-22 alloy are:
Acetic Acid/Acetic Anhydride Acid Etching Cellophane Manufacturing Chlorination Systems
Complex Acid Mixtures Electro-Galvanizing Rolls Expansion Bellows Flue Gas Scrubber Systems
Geothermal Wells HF Furnace Scrubbers Incineration Scrubber Systems Nuclear Fuel Reprocessing
Pesticide Production Phosphoric Acid Production Pickling Systems Plate Heat Exchangers
Selective Leaching Systems SO2 Cooling Towers Sulfonation Systems Tubular Heat Exchangers
Weld Overlay-Valves


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