Hastelloy C-200
Alloy 200
Alloy 200 is an unalloyed wrought nickel alloy.
It offers excellent corrosion resistance, good mechanical, magnetic and magnetostrictive properties and useful thermal and electrical conductivities.
Alloy 200, also known as Hastelloy C-200, is a versatile and widely recognized family of austenitic nickel-chromium-molybdenum alloys. Known for its exceptional resistance to a broad range of corrosive environments, it has become an industry staple for applications where high performance and reliability are critical.
AVAILABILITY |
SPECS |
FLANGES |
1/2" - 8" |
B160, B564, B16.5 |
FITTINGS |
|
B564 |
TUBING |
|
B161 |
TENSILE REQUIREMENTS |
TENSILE STRENGTH |
(KSI) 50 MIN. |
YIELD STRENGTH 5" AND UNDER OVER 5" |
(KSI) 12 MIN.
(KSI) 10 MIN. |
ELONGATION 5" AND UNDER OVER 5" |
35% MIN.
40% MIN. |
Stocks of Alloy 200 are dual certified to Alloy 201 with reduced carbon content (0.02% MAX) for better corrosion resistance at temperatures above 570F by avoiding graphite precipitation.
Design Features
- Excellent resistance to many corrosive media from acid to alkaline.
- Extremely high resistance to caustic alkalis including the molten state.
- Resistance to mineral acids varies according to temperature and concentration and whether or not the solution is aerated. Corrosion resistance is better in non-aerated acids.
- In acid, alkaline and neutral salt solutions, Alloy 200 shows good resistance, however, severe attack occurs in oxidizing salt solutions.
- Resistant to all dry gases at room temperature.
Typical Applications
- Food production, such as the handling of cool brines, fatty acids and fruit juices
- Vessels in which fluorine is generated and reacted with hydrocarbons
- Storing and transportation of phenol - immunity from any form of attack ensures absolute product purity
- Manufacture and handling of sodium hydroxide, particularly at temperatures above 570°F
- Production of viscose rayon and manufacture of soap - general corrosion resistance and virtual immunity to intergranular attack above 600°F
- Production of hydrochloride and chlorination of hydrocarbons such as benzene, methane and ethane
Chemical Composition
C |
CU |
MN |
NI |
S |
SI |
FE |
MAX |
MAX |
MAX |
MIN |
MAX |
MAX |
MAX |
0.02 |
0.25 |
0.35 |
99.0 |
0.01 |
0.35 |
0.40 |