ASTM B516 Nickel High Temperature Alloy Steel Tubes Welded Hastelloy C276

Introduction

• Hastelloy C22 (N06022) is a nickel-based high temperature alloy composed of nickel, molybdenum,

cobalt, tungsten and other elements, containing about 60% of nickel.It is an all-around ni-cr molybdenum

tungsten alloy with better overall corrosion resistance than other existing ni-cr molybdenum alloys, including

Hastelloy c-276, C4 alloy and 625 alloy.Hastelloy C22 alloy has good resistance to pitting, crack corrosion

and stress corrosion cracking.It has excellent antioxidant capacity in water media, including wet chlorine,

nitric acid, or mixed acids of oxidizing acids containing chloride ions.

• Meanwhile, Hastelloy C22 (N06022) hardener alloy also has the ability of reducing and oxidizing

environment encountered in the ideal resistance process.With this versatile capability, it can be used in

a number of troublesome environments, or in multiple production plants.Hastelloy C22 (N06022) alloy

has abnormal resistance to various chemical environments, including strong oxidizing substances, such

as iron chloride, copper chloride, chlorine, and heat pollution dissolution.Liquid (organic and inorganic),

formic acid, acetic acid, acetic anhydride, seawater and salt solutions.Hastelloy C22 (N06022) alloy has

the ability to resist the formation of grain boundary precipitation in the weld thermal influence zone, which

enables it to adapt to many chemical processes in the welding state.

Character

Hastelloy C22 alloy is a versatile nickel-chromium-molybdenum tungsten alloy, which has better overall

corrosion resistance than other existing nickel-chromium-molybdenum alloys, including Hastelloy C276,

C4 alloy and 625 alloy.Hastelloy C22 alloy has good resistance to pitting, crack corrosion and stress

corrosion cracking.It has excellent antioxidant capacity in water media, including wet chlorine, nitric acid,

or mixed acids of oxidizing acids containing chloride ions.Meanwhile, Hastelloy C22 alloy also has the

ability of reducing and oxidizing environment encountered in the ideal resistance process.With this

versatile capability, it can be used in a number of troublesome environments, or in multiple production

plants.Hastelloy C22 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.Hastelloy C22 alloy has

the ability to resist the formation of grain boundary precipitation in the welding thermal influence zone,

so it can adapt to many chemical processes in the welding state.

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