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Stainless & Bi-Metal
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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.

  • 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.

Trademark Notice: Some names that are listed in this site are trade names and/or trademarks of specific manufacturers. The names are listed solely for reference to help identify products consistent with listed specifications. Steel Holdings Corporation Ltd. is not affiliated with any manufacturer(s) and will fulfill orders to meet specifications from any available source(s)

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