A common alloy with a combination of nickel and molybdenum content called Hastelloy B2 is well suited for extremely reducing conditions. When exposed to phosphoric, sulfuric, acetic, and hydrogen chloride gas in reducing circumstances, molybdenum content offers outstanding corrosion resistance. This alloy can be used in as-welded situations since it resists carbide precipitates in weld-affected zones. Iron and chromium components are added to promote fabricability.
Hastelloy B2 Flanges have been reinforced with solid solutions. These flanges have significant corrosion resistance against a variety of reducing conditions thanks to the molybdenum presence in them. These flanges are more resistant to grain-boundary carbide precipitates forming in the weld heat-affected zone thanks to the nickel content. For applications in situations containing reducing agents such as phosphoric acids, sulfuric acid, acetic acid, and hydrogen chloride gas, Hastelloy B2 Flanges are dependable. Additionally, they exhibit exceptional resistance to stress corrosion cracking and pitting, especially in heat-affected zones and knife-line zones.
Hydrochloric acid is extremely resistant to Hastelloy B2 Flanges at all temperatures and concentrations. Additionally, they provide resistance to many non-oxidizing acids and pure sulfuric acid. Due to their rapid premature corrosion, Hastelloy b2 flanges are not advised for usage in oxidising conditions. Hastelloy B2 Flanges are used in a variety of industries, including those that produce high-octane gasoline and make chemicals. Additionally, they are utilised in decreasing conditions in piping systems and vacuum furnaces. Additionally, they are employed in chemical processes involving sulfuric and phosphoric acids.
