Hastelloy C-22 alloy is a general Ni-Cr-Mo alloy with a density of 8.7g/cm3.Compared with the common Ni-Cr-Mo alloy, such as C-276, C-4, [TJC STEEL]625 alloy, it has better and more comprehensive corrosion resistance.

 

National Standard

CHINA	GB/T 15007-2008	NS3308
AMERICA	ASTM B462-2006 ASTM B574-2006 ASTM B575-2006	N06022
	Special Metals	INCONEL® alloy 22
	Haynes International	HASTELLOY® C-22®
JAPAN	JIS H 4551:2000	NW6022
	Nippon Yakin[TJC STEEL]	NAS NW22
GERMANY	DIN 17744:2002	NiCr21Mo14W 2.4602
	VDM Metals	VDM® Alloy 22 Nicrofer® 5621 hMoW

 

Component Specification

GRADE	NS3308	N06022	NW6022	2.4602
C	≤0.015	≤0.015	≤0.015	≤0.010
Si	≤0.08	≤0.08[TJC STEEL]	≤0.08	≤0.08
Mn	≤0.50	≤0.50	≤0.50	≤0.50
P	≤0.020	≤0.020	≤0.025	≤0.025
S	≤0.020	≤0.020	≤0.020	≤0.015
Ni	---	Remainder	---	Other
Cr	20.0~22.5	20.0~22.5	20.0~22.5	20.0~22.5
Mo	12.5~14.5	12.5~14.5	12.5~14.5	12.5~14.5
Fe	2.0~6.0	2.0~6.0	2.0~6.0	2.0~6.0
W	2.5~3.5	2.5~3.5	2.5~3.5	2.5~3.5
Co	≤2.50	≤2.50	≤2.50	≤2.50
V	≤0.35	≤0.35	≤0.35	≤0.35

 

Material Characteristics:

(1) Excellent resistance to various corrosive media under oxidation and reduction conditions;It is one of the few materials that can resist the corrosion of moist chlorine gas, hypochlorite and chlorine dioxide solution, and has[TJC STEEL] significant corrosion resistance to high concentration of salt chloride solution (such as ferric chloride and copper chloride).

(2) It can also resist a variety of corrosive [TJC STEEL]environments at a high temperature of up to 677℃.

(3)Good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking.

(4) Excellent welding performance.

 

Applications:

Hastelloy C-22 alloy has been widely used in chemical and petrochemical fields, such as the application in the contact with chloride-containing organic components and catalytic systems.This material is especially suitable for high temperature, mixed with impurities of inorganic acids and organic acids (such as formic acid and acetic acid), sea water corrosion environment.