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Alloy C-22 is an enhanced nickel-chromium-molybdenum-tungsten alloy designed for superior performance in aggressive industrial environments. This alloy demonstrates exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making it ideal for demanding applications.
Key Advantages
Superior overall corrosion resistance compared to Alloy C-276
Outstanding resistance to chloride pitting, crevice corrosion, and stress corrosion cracking
Excellent performance in oxidizing aqueous environments including wet chlorine and nitric acid/chloride mixtures
Chemical Composition
Hastelloy C22, UNS N06220
Element
Ni
Cr
Mo
Mn
Si
C
S
P
Cu
V
W
Fe
MIN
Balance
20.0
12.5
--
--
--
--
--
--
--
2.5
--
MAX
Balance
22.5
14.5
0.5
0.08
0.015
0.02
0.02
2.5
0.35
3.5
6.0
Mechanical Properties
Temperature (°F)
70
200
400
600
800
1000
1200
1400
Ultimate Tensile Strength (ksi)
114
107
98
95
92
88
83
76
0.2% Yield Strength (ksi)
54
49
41
36
35
34
32
31
Elongation (%)
62
65
66
68
68
67
69
68
Hardness MAX (HRB)
95
--
--
--
--
--
--
--
Fabrication Guidelines
While ductile enough for cold working, intermediate annealing may be required due to work hardening. Forging should occur between 1750-2050°F followed by rapid cooling. Annealing is recommended at 2020-2150°F with rapid quenching to prevent formation of detrimental phases between 1400-1800°F. Welding can be performed using gas tungsten-arc, gas metal-arc, and shielded metal-arc processes.
Industry Standards
Hastelloy C22, UNS N06220 ASTM Specifications
Product Form
Standard
Pipe Seamless
B622
Pipe Welded
B619
Tube Seamless
B622
Tube Welded
B626
Sheet/Plate
B575
Bar
B574
Forging
B564
Fitting
B366
Applications
Pharmaceutical industries for corrosion-resistant fittings and tubing
Cellophane manufacturing processes
Chlorination systems
Pesticide production equipment
Incineration scrubber systems
Chemical process industry including flue gas scrubbers, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing
Waste water processing systems
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification:
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...