Hastelloy B-3 Nickel-Molybdenum Alloy

Hastelloy B-3 Nickel-Molybdenum Alloy (marketing department of Shanghai HY Industry Co., Ltd)

Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion and stress corrosion cracking, with better thermal stability than B-2 alloy. In addition, this nickel-steel alloy is highly resistant to attack from the knife line and heat-affected zone. B-3 alloy can also withstand sulfuric acid, sulfuric acid, hydrochloric acid and phosphoric acid and other non-oxidizing media. In addition, this nickel alloy has excellent resistance to yanamic acid at various concentrations and temperatures. The distinguishing feature of Hastelloy B-3 is its ability to maintain excellent ductility during transient exposure to moderate temperatures. Such exposure is routinely experienced during thermal processing associated with manufacturing.

2 Hastelloy B-3 Chemical Composition













65.0 min



0.01 max

3.0 max


3.0 max

0.10 max

0.2 max

3.0 max

0.50 max

0.20 max

3 What are the characteristics of Hastelloy B-3?

  • Retains excellent ductility during transient exposure to moderate temperatures

  • Excellent resistance to pitting, corrosion and stress corrosion cracking

  • Excellent resistance to knife line and heat-affected zone attacks

  • Excellent resistance to phosphonic, phosphonic and phosphoric acids and other non-oxidizing media

  • Resistant to yanic acid at all concentrations and temperatures

  • better thermal stability than alloy B-2

4 In what applications is Hastelloy B-3 used?

  • chemical process

  • Vacuum furnace

  • Reduced mechanical parts in the environment

5 Made by Hastelloy B-3

Due to the increased thermal stability of Alloy B-3, the problems associated with making the composition of Alloy B-2 should be minimized. The low carbon content allows alloy B-3 to be used in the as-welded condition. Hastelloy B-3 has good overall forming and welding characteristics. The alloy can be forged or hot worked as long as it is held at 2250°F for sufficient time to bring the entire part to temperature. Since it is a low carbon alloy, it may be necessary to use lower hot finishing temperatures for grain size control. It can also be formed by cold working. Although B-3 alloy components can be machined quickly, they can be fabricated using all common cold forming techniques.

6 Hastelloy B-3 Physical Properties

Density: 9.22g/cm3

Melting point: 1370℃-1418℃

Shanghai HY Industry Co., Ltd has international first-class material production equipment such as high temperature alloy isothermal forging production line, CONSARC vacuum melting furnace, VAR vacuum arc remelting furnace etc., with strong professional ability and highly responsible management team. If you have superalloy material inquiry, please contact us without hesitation. Shanghai HY Industry Co., Ltd is Corrosion & fatigue nickel alloy professional manufacturer,We will provide you with sincere and thoughtful service.

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