Hastelloy C-22

Hastelloy C-22  is extremely resistant to corrosion in oxidizing and reducing environments.  C-22 has shown an outstanding resistance to a wide range of chemicals,  including chlorides, organic and inorganic solutions.

In addition to  having exceptional corrosion resistance, Hastelloy C-22 can also be readily  fabricated. It exhibits superior welding conditions, providing excellent  as-welded conditions for process applications in chemical-based industries such  as food, beverage, personal care, and pharmaceutical.

Minimum value of mechanical properties at room  temperature

Product Description

Hastelloy C-22 characteristics:

Hastelloy C-22  alloy are versatile nickel-chromium-molybdenum-tungsten alloys, which have  better overall anti-corrosion properties than other existing nickel-chromium  molybdenum alloys, including C-276, C4 alloy and 625 alloy. The alloy has good  corrosion resistance, crevice corrosion and stress corrosion cracking ability.

 It has excellent antioxidant capacity,  including wet chlorine, nitric acid or a mixture of oxidizing acids containing  chloride ions. At the same time, the alloy also has the ideal resistance  process to meet the reduction and oxidative environment capacity.

Depending on  this versatility, he can be used in some troublesome environments, or in  factories with multiple production purposes. Alloy has abnormal resistance of  various chemical environment, including strong oxidizing substances.

Such as ferric  chloride, copper chloride, chlorine, thermal pollution solution (organic,  inorganic), formic acid, acetic acid, acetic anhydride, water and salt  solution, etc. The alloy has the ability of resisting grain boundary  precipitation in the welding heat affected zone, so that it can adapt to the  application of many chemical processes in the welding state.

Hastelloy C-22 structure: face  centered cubic lattice.

Hastelloy C-22 Corrosion Resistant:

Alloys are  suitable for various chemical process industries containing oxidation and  reducing rings. The higher molybdenum and chromium content enables the alloy to  resist the chloride ion and the tungsten element further enhances its corrosion  resistance.
 

 Hastelloy C-22 is one of the several to be able to resist the corrosion of wet  chlorine, hypochlorite and chlorine dioxide solution is one of the material,  the alloy of high concentrations of chlorate solution with a remarkably  corrosion resistance (such as ferric chloride and copper chloride).

Product Application

The corrosion  resistance of this alloy renders it suitable for many industrial applications,  including, among others, electro-galvanizing rolls, flue gas scrubber systems,  nuclear fuel processing, phosphoric acid production and sulfur dioxide cooling  towers.

                                                                    
 Hastelloy C-22 Application：

• Acetic acid, acetic anhydride

• Acid leaching

• Cellophane manufacture

• Chlorination system

• Complex mixed acid

• A roller for a galvanizing bath

• Expansion bellows

• Smoke cleaner system

• Geothermal well

• Hydrogen fluoride furnace  cleaner

• Incinerator system

• Blanketing

• Pesticide production

• Phosphoric acid production

• Pickling system

• Plate heat exchanger

• Selective filtration system

• Sulfur dioxide cooling tower

• Sulfonated system

• Tubular heat exchanger

• The valve surfacing

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