Hastelloy C-22 (N06022/NS3308/2.4602) nut

Similar brands

GB/T	UNS	Trademark	W.Nr
NS3308	N06022	Hastelloy C-22	2.4602

 

Chemical Composition of Hastelloy C-22 Nuts

Alloy	%	Ni	Cr	Mo	Fe	W	Co	C	Mn	Si	V	P	S
Hastelloy C-22	Min	Balance	20	12.5	2	2.5	–	–	–	–	–	–	–
	Max		22.5	14.5	6	3.5	2.5	0.015	0.5	0.08	0.35	0.02	0.02

 

Physical Properties of Hastelloy C-22 Nuts

density	8.9g/cm3
melting point	1325~1370C

 

Hastelloy C-22 Nut Minimum mechanical properties of the alloy at room temperature

Alloy status	tensile strength Rm N/mm2	Yield Strength RP0.2 N/mm2	Elongation A5%
Solid solution	690	283	40

 

Hastelloy C-22 Nut Features:

Hastelloy C-22 alloy is a versatile nickel-chromium-molybdenum-tungsten alloy that has better overall corrosion resistance than other existing nickel-chromium-molybdenum alloys, including Hastelloy C-276, C4 alloy and 625 alloy. Hastelloy C-22 alloy has good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking. It has excellent resistance to oxidation in aqueous media including wet ammonia, nitric acid or mixed acids containing oxidizing acids containing amide ions. At the same time, HastelloyC22 alloy also has the ideal ability to resist the reducing and oxidizing environments encountered during the process. Relying on this versatile performance, it can be used in some troublesome environments or applied in factories for multiple production purposes. Hasteloy C-22 alloy has exceptional resistance to various chemical environments, including strongly oxidizing substances, such as ferric ammonia, copper chloride, chlorine, thermal pollution solutions (organic and inorganic), formic acid, acetic acid, acetic anhydride, seawater and salt solutions, etc. Hastelloy C-22 alloy has the ability to resist the formation of grain boundary precipitation in the welding heat affected zone, which makes it suitable for many chemical process applications in the welding state.

 

Metallographic structure of Hastelloy C-22 nut:

Hastelloy C-22 has a face-centered cubic lattice structure.

 

Corrosion Resistance of Hastelloy C-22 Nuts:

Hastelloy C-22 alloy is suitable for various chemical process industries containing oxidizing and reducing media. The higher molybdenum and chromium content makes the alloy resistant to the erosion of ammonia ions, and the tungsten element further improves its corrosion resistance. Hastelloy C-22 is one of the only materials that is resistant to corrosion by moist ammonia, hyponitrite, and ammonia dioxide solutions. The alloy has significant corrosion resistance to high-concentration vaporized salt solutions (such as ammoniated salt solutions). iron and copper amide).

 

Hastelloy C-22 Application Scope Application areas include:

Hastelloy C-22 alloy has been widely used in the chemical and petrochemical fields, such as in components and catalytic systems that come into contact with ammonia-containing organic matter. This material is especially suitable for use in high temperature, inorganic and organic acids mixed with impurities (such as formic acid and acetic acid), and seawater corrosion environments.