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Hastelloy C-22

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Product Description

Features:

UNS Number N06022

Hastelloy C-22 is a versatile Ni-Cr-Mo-W alloy with better comprehensive corrosion resistance performance than other Ni-Cr-Mo alloys, including Hastelloy C276, Hastelloy C4 and Inconel 625. Hastelloy C-22 has a outstanding resistance to pitting, crevice corrosion and stress corrosion cracking. It has a excellent resistance to oxidizing aqueous media including wet chlorine , mixtures containing nitric acid or oxidizing acids with chloride ions. Hastelloy C22 also offers optimum resistance to environments oxidiic conditions. With these feature, Hastelloy C22 can be used in hostile conditions. Hastelloy C-22 also has exceptional resistance to a wide variety of chemical process environments, such as ferric and cupric chlorides, chlorine, hot contaminated solutions (organic and inorganic), formic and acetic acids, acetic anhydride, and seawater and brine solutions. It resists the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition.

Applications:
Hastelloy C22 can be applied in Chemical processing, like acetic acid, acetic anhydride and complex acid mixture; pickling operations; cellophane manufacture; chlorination systems; electro-galvanizing rolls, expansion bellows; flue gas scrubber systems; geothermal wells; HF furnace scrubbers; incineration scrubbers; nuclear fuel reprocessing; pesticide production; phosphoric acid production; heat exchangers; selective leaching systems; sulfur dioxide cooling towers; sulphonation systems; and weld overlay.

Forms of Hastelloy C22 Available at China Special Bolts?
• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Wire

Hastelloy C22 Chemical composition:

Alloy	%	Ni	Cr	Mo	Fe	W	Co	C	Mn	Si	V	P	S
C	Min.	balance	14.5	15	4	3
C	Max.	balance	16.5	17	7	4.5	2.5	0.08	1	1	0.35	0.04	0.03
C22	Min.	balance	20.0	12.5	2	2.5
C22	Max.	balance	22.5	14.5	6	3.5	2.5	0.015	0.5	0.08	0.35	0.02	0.02

Hastelloy C22 Physical properties:

Density	8.9 g/cm³
Melting point	1325-1370 ℃

Hastelloy C22 Alloy m inimum mechanical properties in the roomtemperature:

Alloy state	Tensile strength Rm N/mm²	Yield strength R P 0.2 N/mm²	Elongation A 5 %
Hastelloy C22	690	283	40

ASTM Specifications

Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet/Plate	Bar	Forging	Fitting
B622	B619	B622	B626	B575	B574	B564	B366

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Hastelloy C-22

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