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Hastelloy C-22

Hastelloy C-22
 
Hastelloy C-22 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 C-22 Physical properties
Density

8.9 g/cm³

Melting point

1325-1370 centigrade


Hastelloy C-22 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


 
Product forms of Hastelloy C22:
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
 
 
 
Characteristic as below:
Hastelloy C22 is a omnipotent of nickel, chromium and molybdenum mixed alloy, with better corrosion resistance performance than other alloys, for example, Hastelloy C276 alloy, C4 alloy and 625 alloy. Hastelloy C22 have a good resistance performance to pitting, crevice corrosion and stress corrosion cracking, have excellent inoxidability water medium performance, including the wet-chlorine, nitric acid or oxidizing acid mixed acid with chloride ion. Meantime, Hastelloy C22 possesses perfect resistance to reduction and oxidation of processing enviroments, then it can be used in some complicated environment or with many different manufacture target factory depend on the omnipotent performance. Hastelloy C22 possess prominent resistance performance to different chemical environments, including strong oxidizing matter, such as iron chloride, copper chloride, chlorine, heat pollution liquid(organic and inorganic), formic acid, acetic acid, acetyl oxide, sea water and salting liquid and so on. Hastelloy C22 alloy can resist the grain boundary precipitate form when jointing heat affected zone, this performance made it can applied in many kinds of chemical processing.
 

Hastelloy C-22 Metallurgical structure
Hastelloy C22 is face-centered cubic lattice structure.

 

Hastelloy C-22 Corrosion resistance
Hastelloy C22 alloy suit for many kinds of chemical process industry which contain the oxidizing medium and reductant. High molybdenum and chromium content make it can resist the chloride corrosion, and tungsten makethis corrosion resistancebetter.Hastelloy C22 is one of a few material that can resist thecorrosion of moist chlorine, hypochlorite and chlorine dioxide, this alloyhave prominent corrosion resistanceto high concentration chlorate( iron chloride and copper chloride).

 

Hastelloy C-22 Application field:
Hastelloy C22 is widely used in the chemical field and petrifaction field, such as the element of chloride organic and catalyze system.This material especially suit for high temperature environments, impure inorganic acid and organic acid (such as formic acid and acetic acid), sea-water corrosion environments.
 
 
 
Hastelloy C-22 Other application field:
1.Acetic acid/acetyl oxide
2.Acid dipping
3.Cellophane paper manufacture
4.Chloride system
5. Complicated mixed acid
6.Electrogalvanizing groove roller
7.Expansion bellows
8.Flue gas washer system
9.Geothermal well
10.Fluorine hydride furnace cleaner
11.Incineration cleaner system
12.Nuclear fuel regeneration
13.Pesticide manufacture
14.Phosphoric acid manufacture
15.Acid cleaning system
16.Plate heat exchanger
17.Selectivity filter system
18.Sulfur dioxide cooling tower
19.Sulfonating system
20.Tubing heat exchanger
21.Resurfacing welding valve

 

Date:2011-3-20
Last:Hastelloy C-276
Next:Hastelloy C(GB:NS333)

 

 

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