Hastelloy B3 Alloy

Common Trade Names: Hastelloy B3; Alloy B3

HASTELLOY B-3 alloy designated as UNS N10675 is a nickel-molybdenum alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures. It also withstands sulfuric, acetic, formic and phosphoric acids, and other nonoxidizing media. B-3 alloy has a special chemistry designed to achieve greater thermal stability than B-2 alloy, resulting in easier fabrication.

Properties:

• B-3 alloy has excellent resistance to pitting corrosion, to stress-corrosion cracking and to knife-line and heat-affected zone attack
• B-3 alloy has a special chemistry designed to achieve a level of thermal stability greatly superior to that of its predecessors, e.g. HASTELLOY B-2 alloy
• Resists hydrochloric acid at all concentrations and temperatures
• Withstands wet HCl gas, sulfuric, acetic and phosphoric acids
• Excellent resistance to pitting and to stress corrosion cracking

Typical Applications:

• Acetic acid production, initial phase in presence of iodide catalyst
• Methyl methacrylate production with hot 98 % H2SO4
• Production of herbicides, insecticides, ethylene glycol and ethyl benzene

Product Forms:

• Sheets, strips, Plates
• Bars
• Pipes, tubes
• Wire

Hastelloy B3 Alloy is a Registered Trademarks of Haynes International and its subsidiaries.