Hastelloy C22
Hastelloy C22
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Hastelloy C22
HASTELLOY C-22 alloy is a versatile nickel-chromiummolybdenum-tungsten alloy with better overall corrosion resistance than other Ni-Cr-Mo alloys available todayCharacteristics .C-22 alloy has outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking.
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  • Introduction
  • PARAMETER
  • APPLICATION
Chemical Composition

C

Cr

Co

Fe

Mn

Mo

Ni

P

.010 max

20-22.5

2.5 max

2.0-6.0

.50 max

12.5-14.5

Balance

.02 max

Si

S

W

V

.08 max

.02 max

2.5-3.5

.35 max





Physical Performance:

Density

8.94 g/cm3



Smelt

1325-1370



Heat
Treatment

T*S

Y*S

El

Rm N/mm2

RP0.2N/mm2

A5 %

Hastelloy
C-22

690

283

40




Standard of execution:

Form

ASTM

Rod

B 574

Plate, sheet and strip

B 575

Seamless pipe and tube

B 622

Welded pipe

B 619, B 775

Welded tube

B 626, B 751

Welding fitting

B 366

Forged or rolled pipe flange and forged fitting

B 462

Billet and bar for reforging

B 472

Forging

B 564

Characteristics of Hastelloy C22

Resistant to pitting, crevice corrosion and stress corrosion cracking

Outstanding resistance to both reducing and oxidizing media

Excellent resistance to oxidizing aqueous media

Exceptional resistance to a wide variety of chemical process environments including strong oxidizers such as ferric acids, acetic anhydride, and seawater and brine solutions

Resists the formation of grain-boundary precipitates in the weld heat-affected zone

Excellent weldability

Applications of Hastelloy C22:

Pharmaceutical industries use alloy C-22 fittings and tubing to avoid contamination caused by corrosion related failures

Cellophane manufacturing

Chlorination systems

Pesticide production

Incineration scrubber systems

Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing

Waste water processing

In what forms is Hastelloy C22 Available at Taixin?

Sheet

Plate

Bar

Pipe & Tube (welded & seamless)

Fittings

Wire

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