Introduction to Hastelloy Nickel Alloys
Hastelloy is nickel-molybdenum corrosion-resistant super alloy used for a wide range of chemical processing, pollution control and waste treatment applications. These nickel alloys have a low carbon content that helps maintain the material’s resistance to corrosion in heat-affected zones of welded joints.
What are the Characteristics of Hastelloy?
- High resistance to uniform attack
- Outstanding localized corrosion resistance
- Excellent stress corrosion cracking resistance
- Good resistance to acids such as sulfuric, nitric, hydrochloric, hydrofluoric and chromic
- Ease of welding and fabrication
- High resistance to oxidation at elevated temperature
Most of these alloys are available in the form of plate, sheet, bar, pipe, tubing, pipe fittings, flanges and welding material.
Hastelloy alloy grade :
- Hastelloy C22®
- Hastelloy C276®
- Hastelloy B-2®
- Hastelloy X®
- Hastelloy B-3
Corrosion Resistant Hastelloy for Chemical Processing Applications
Corrosion-resistant nickel alloys are widely used by chemical processing industries because provide excellent resistance to oxidizing and localized corrosion including pitting and stress corrosion cracking. Because of its durability, thermal stability and reliable performance, Hastelloy alloys are widely used for various chemical processing applications and others that require high corrosion resistance.
In what applications in Hastelloy Nickel Alloys used?
- Oil and gas production
- Chemical Processing Industry
- Liquified natural gas
- Solar power
- Nuclear power
Nickel alloy Hastelloy is easily formed, fabricated and welded and considered one of the most versatile nickel alloys available. Hastelloy C276 is a nickel-molybdenum-chromium supe ralloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. . In general,Hastelloy is costlier than other corrosion-resistant metals such as stainless steel, but it provides superior performance and mechanical stability that makes it an ideal choice for highly corrosive environments.
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