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Alloy B-2®

A nickel-molybdenum grade, Alloy B-2® is extremely resistant to hydrochloric acid in a wide range of temperatures.

Alloy B-2® is a solid-solution strengthened nickel alloy which is normally used in extreme reducing conditions. Alloy B2® also exhibits good resistance to hydrogen chloride, sulfuric acid and phosphoric acid.


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Alloy B-2® round bar12.7 mm190.5 mm GET A QUOTE

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Chemical Analysis



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Ideal for use within the Pharmaceutical industry

Alloy B-2® can be used in a variety of applications, here are just a few examples:

  • Pressure vessels and reactors
  • Agitators and mixers
  • Pumps and valves
  • Gaskets
  • Pipe work and pipe spools
  • Heat exchangers

About Alloy B-2®

Alloy B-2® is a nickel-molybdenum alloy with significant resistance to reducing environments, such as hydrogen chloride gas and sulfuric, acetic and phosphoric acids. Hastelloy B-2® provides resistance to pure sulfuric acid and a number of non-oxidizing acids. The alloy should not be used in oxidizing media or where oxidizing contaminants are available in reducing media. Premature failure may occur if alloy B-2® is used where ferric iron, cupric ion and free chlorides are present.

With a high nickel content, Hastelloy B-2® is immune to chloride-induced stress corrosion cracking.



9.22 g/cm³
Melting Range:
Specific Heat Capacity:
377 J/kg.°C
Electrical Resistivity:
1.37 µΩ.m
Curie Temperature:


UNS Number:
UNS N10665
ASTM B333, B335, B564, B619, B622, B626, B366, B462 , B775
Download the Alloy B-2® Data Sheet Download

FAQs & Resources

Hastelloy® refers to a range of corrosion and heat resistant nickel alloys. It is a registered trademark of Haynes International.

Hastelloy® alloys are widely used across chemical processing, oil and gas, pharmaceutical and environmental industries. Displaying excellent resistance to stress corrosion cracking and non-oxidizing acids, these alloys have been used for numerous applications including stack liners, reaction vessels, heat exchangers, aircraft cabin heaters, transition ducts etc.

Corrosion resistant grades: Hastelloy®C22, Hastelloy®B2, Hastelloy®C276 and Hastelloy®C4
Heat resistant grades: Hastelloy®S, Hastelloy®W, Hastelloy®X

NeoNickel offer some of these Hastelloy® grades or the equivalent. Please contact us for more information or find out more about Hastelloy® on our website.

UNS stands for Unified Numbering System for the metals and alloys industry. It is a jointly published standard of the Society of Automotive Engineers, Inc. (SAE) and the American Society for Testing and Materials (ASTM). The UNS designation helps to standardise and unify various internationally used metals and alloys tradenames for efficient indexing and cross-referencing.

Werkstoff number is the numerical code preceding the letters DIN (Deutsches Institut Fur Normung). It is commonly used as a stand-alone numeric code to identify specific grades of materials. The word werkstoff itself means material or the matter which things are made from. Other specifications and references on all NeoNickel alloys can be found on our website.

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Fill in our online form to get a fast quote. Got a technical question? Contact us on techsales@neonickel.com or for more general enquiries please email us at enquiries@neonickel.com