Applications and Characteristics of Hastelloy and Its Types
Hastelloy is a representation of a family of corrosion-resistant alloys. It is a rare metal that is used when a project requires exceptional strength and corrosion resistance. You can easily get this from any renowned China Hastelloy alloy supplier. It is a nickel alloy with chromium, iron, copper, cobalt, and manganese added to it.
There are several types of Hastelloy alloys. These are used in a wide variety of industries. Nickel is one of the major ingredients of Hastelloy alloys. There are other ingredients used here that are:
- Carbon
- Cobalt
- Aluminum
- Titanium
- Molybdenum
- Manganese
- Tungsten
- Iron
- Chromium
- Copper
- Zirconium
Characteristics of Hastelloy:
- High resistance
- Localized corrosion resistance
- Stress corrosion cracking resistance
- Excellent resistance to acids including sulfuric, hydrochloric, chromic, nitric, and hydrofluoric
- Welding and fabrication are done easily.
- High oxidation resistance.
Applications in which Hastelloy Alloy is used:
- Chemical industry
- Pharmaceutical
- Aerospace
- Items where exposure to high mechanical stress and seawater is required
- Items exposed to flue gas or flue gas desulfurization plants.
- Marine industries
- Industrial gas turbine
- Health and environmental
- Oil and gas
Different Hastelloy Alloys:
Hastelloy B-2 Alloy:
- Good resistance to hydrochloric acid and other reducing chemicals of B-3 alloys.
- Great thermal stability
- Fabric ability
- Stress corrosion cracking resistance.
Hastelloy HYBRID- BC1 alloy:
- An advanced Ni-Cr-Mo alloy
- Excellent resistance to hydrochloric and sulfuric acids
- High resistance to pitting and crevice attack in chloride salt solutions
- It contains high levels of oxidizing impurities.
Hastelloy C-4 alloy:
- High-temperature stability in the 1200-1900°F (650-1040°C) range
- Good ductility
- Corrosion resistance
- Almost same corrosion resistance as alloy C-276.
Hastelloy C-22 alloy:
- Better corrosion resistance in oxidizing corrosives as compared to C-4, C-276, and 625 alloys.
- Excellent resistance to localized corrosion
- Best resistance to stress corrosion cracking
- This is the best alloy to use as a universal weld filler metal to resist corrosion of weldments.
Hastelloy C-22HS alloy:
- Exhibit corrosion resistance as compared to other C-type alloys.
- These can be heat treated to get approximately double the yield strength.
Hastelloy C-276 alloy:
- Versatile
- Corrosion-resistant alloy
- Excellent resistance to reducing and mildly oxidizing corrosives.
- Better stress corrosion cracking resistance.
- Excellent resistance to localized attack.
Hastelloy C-2000 alloy:
- Most versatile
- Corrosion-resistant alloy
- Outstanding resistance to uniform corrosion in oxidizing or reducing environments
- Better resistance to stress corrosion cracking
- Excellent resistance to localized corrosion as compared to C-276 alloy.
