Alloy C22

Alloy 22 (UNS N06022) is an all austenitic nickel chromium molybdenum tungsten alloy, which has better overall corrosion resistance than other nickel alloys (like alloy C-276, alloy C4 and alloy 625), especially in high chlorine environment.

Alloy 22 has excellent resistance to various chemical process environments, including ferric chloride, chlorine, heat contaminated solutions, acetic acid, seawater and brine solutions. Alloy 22 is ideal when considering the use of alloys in extremely corrosive environments.

dfb

Chemical composition:

%

Ni

Cr

Mo

Fe

W

Co

C

Mn

Si

P

S

V

min

balance

20.0

12.5

2.0

2.5

max

22.5

14.5

6.0

3.5

2.5

0.015

0.50

0.08

0.020

0.020

0.35

Physical properties :

Density

8.69 g/cm3

Melting range

1325-1370℃

Application:

Oil and gas

pharmacy

Pulp and paper

Pollution control and nuclear industry

Refuse incinerator

Flue gas desulfurization scrubber equipment

Nuclear fuel reprocessing / spent fuel container

Heat exchanger assembly

Chemical equipment

From

UNS

Alloy

Scope (mm)

Seamless pipe &tube

Welded pipe & tube

Fitting/Flange

Sheet, Plate, Strip

UNS N06022

ALLOY C22

OD: 6.35-114.3mm
WT: 1.65-11.13mm
L: 0-12000mm
OD: 17.1-914.4mm
WT: 1-36mm
L: <12000mm
DN15-DN600 Plate: WT<6mm, WDT<1200mm, L<3000mm;

WT>6mm, WDT<2800mm, L<8000mm
Coil: WT:0.15-3MM, WDT: <1000mm