Hastelloy 188

Minimum value of mechanical properties at room  temperature

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Product Description

Hastelloy 188 characteristics:

Hastelloy 188 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 188 structure: face  centered cubic lattice.

Hastelloy 188 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 188 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 alloys have  been widely used in chemical and petrochemical fields, such as the application  of components and catalytic systems in contact with chlorinated organic  compounds. This material is especially suitable for use in high temperature,  mixed inorganic acid and organic acids (such as formic acid and acetic acid)  and seawater corrosive environment.

 
 Hastelloy 188 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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