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Hastelloy C-22


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. 

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 BAIDE ALLOY?
• 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

Max. 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

Max. 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
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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Tel: 0086-523-89558188, 89550188  
Fax: 0086-523-89555688
Email: sales@jsbdalloy.com
Factory Add:
Alloy Industrial Park of Shiyan Town, Dongtai, Jiangsu, China
Office Add:
Room 110, Building 1, No. 98 Fenghuang West Road, Taizhou City, Jiangsu China.


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