Various nickel-molybdenum alloys are used in a wide variety of applications, including heat exchangers, pressure vessels, pressure tubes, and piping products. These nickel-molybdenum alloys have excellent resistance to high-temperature, reducing, and oxidizing media. Their corrosion resistance is also very useful.
In addition, alloys have a low coefficient of expansion and good shape memory. These qualities make them suitable for applications such as glass-to-metal seals, precision measuring instruments, and transducers. Moreover, they demonstrate excellent resistance to corrosion by acid solutions. These properties are particularly advantageous for the use of nickel alloys in glass-to-metal seals.
Some of the nickel-molybdenum alloys used in a wide variety of applications include Alloy B-4 (2.4600), Alloy B-2 (2.4617), and Monel 400 (r). The alloys are known for their excellent aqueous and high-temperature corrosion resistance. In addition, they have good resistance to erosive corrosion, crevice corrosion, and pitting corrosion.
Hastelloy is a widely used nickel-molybdenum alloy that is widely used for its excellent resistance to hydrogen chloride and hypochlorite bleach. In addition, it has good resistance to reducing acids and has excellent chemical stability.
Alloy B-2 is a nickel-molybdenum alloy that has been developed with additions of chromium to improve its stability. It is the most widely used Ni-Mo alloy. It has been used for a variety of applications, including pump shafts and turbine blades. It is resistant to nitric acid, iron chloride, hypochlorite bleach, and active oxidizing agents. It is capable of carrying loads at temperatures up to 1,600 deg F.