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Bright Nickel Base Cold Drawn ASTM B622 Hastelloy C22 Tube
Product Overview
Hastelloy C22 Seamless Nickel Alloy Tube ASTM B622 Seamless Round Tube is an improved alloy designed for use in aggressive industrial environments. This nickel-base alloy offers exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making it ideal for demanding applications.
Key Features & 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 mixtures with chloride ions
Enhanced weldability with Alloy C22 weld fillers used for joining other corrosion-resistant alloys
Excellent resistance to seawater corrosion under both stagnant and flowing conditions
Material Composition
Alloy C22 is nickel-base and typically contains 22% chromium, 14% molybdenum, and 3% tungsten, with iron limited to less than 3%. The high chromium content provides resistance to oxidizing media, while molybdenum and tungsten offer protection against reducing media.
Chemical Composition (Hastelloy C22, UNS N06220)
Element
Ni
Cr
Mo
Mn
Si
C
S
P
Cu
V
W
Fe
MIN
--
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
Fabrication & Processing
Although ductile enough for cold working, intermediate annealing may be necessary due to work hardening. Forging should be performed between 1750-2050°F followed by rapid cooling. Annealing can be performed at 2020-2150°F with rapid quench to avoid detrimental phase formation. Welding can be done using gas tungsten-arc, gas metal-arc, and shielded metal-arc processes.
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
--
--
--
--
--
--
--
Industry Standards
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
Chlorination systems
Pesticide production
Incineration scrubber systems
Chemical process industry equipment 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...
