Technical Resources

Product Focus: Hastelloy C276


What is Hastelloy C276?

Hastelloy C276, also known as nickel alloy C276, is a solution-annealed nickel-molybdenum-chromium alloy with the addition of tungsten.

Thanks to its high nickel content, alloy C276 is immune to chloride-induced stress corrosion cracking. The high molybdenum and chromium contents allows the alloy to perform in oxidising, non-oxidising and mixed acids media, whilst also exhibiting outstanding resistance to pitting and crevice corrosion attack. The addition of tungsten inhibits the development of pits. 

Because of this, C276 is the most universal corrosion-resistant material available today, making it perfect for use in a wide range of harsh environments.

Here is an overview of the key properties and applications of Hastelloy C276.


Properties of Hastelloy C276

Corrosion resistance: Hastelloy C276 has excellent corrosion resistance in a wide range of environments, including those containing sulfuric acid, hydrochloric acid, and chlorine. It also performs well in environments with high temperatures and high pressures.

High strength: Hastelloy C276 has a high tensile strength and can be used in applications where high strength is required.

Excellent weldability: Alloy C276 can be easily welded using all standard welding methods  including gas tungsten arc welding, shielded metal arc welding, and electron beam welding. This makes it a convenient choice for fabrication.

Great formability: Hastelloy C276 has good formability and can be easily formed into a variety of shapes.

Non-magnetic: Hastelloy C276 is non-magnetic and has low magnetic permeability.

Non-toxic: The alloy is non-toxic and is therefore suitable for use in the pharmaceutical and food processing industries.


Applications of Hastelloy C276

What is Hastelloy C276 used for? Well, because of its long history of versatility and reliability for corrosion resistance combined with high strength, good formability, weldability, non-magnetic properties, and non-toxicity, Hastelloy C276 is the material of choice for many uses in extreme environments.

It’s a valuable material in a wide range of industries, including chemical processing, pollution control, power generation, pharmaceuticals and food processing.

Chemical processing: Hastelloy C276 is widely used in the chemical processing industry due to its excellent corrosion resistance. It is frequently used to resist corrosion from harsh chemicals such as sulfuric acid, hydrochloric acid, and phosphoric acid and chlorine, making it suitable for use in a variety of processing equipment.

It is also resistant to corrosion from seawater, making it a valuable material in offshore oil and gas production. 

Pollution control: Hastelloy C276 is a great alloy for use in pollution control equipment, such as scrubbers and stacks, due to its resistance to corrosion and high temperatures.

It is often used in flue gas desulfurization systems to help reduce sulfur dioxide emissions from power plants. The alloy is resistant to corrosion from the sulfur-containing compounds that are formed during the scrubbing process.

Power generation: Hastelloy C276 is also used in the power generation industry, particularly in coal-fired power plants. The high temperature and corrosive environment of a power plant can be tough on materials, but Hastelloy C276 is able to withstand these conditions due to its excellent corrosion resistance. This makes it great for power generation equipment such as steam generators and nuclear reactors.

Pharmaceutical: Hastelloy C276 is also used in the pharmaceutical industry due to its ability to resist corrosion from various chemicals and its non-toxic nature. During the production of pharmaceuticals and drugs, the alloy is able to resist corrosion from the harsh chemicals used, as well from hot water and steam.

Hastelloy C276 is also used in the pharmaceutical industry for the construction of process equipment such as tanks, pipes, and valves.

Food Processing: Again, thanks to its corrosion resistance and non-toxic nature, Hastelloy C276 is also commonly used in the food processing industry for the construction of food processing equipment such as pasteurizers and sterilisers, storage tanks, pipes, and valves.

In conclusion, Hastelloy C276 is a versatile alloy with excellent corrosion resistance and high strength. Its good weldability and formability make it a convenient choice for a variety of industries, including chemical processing, pollution control, and power generation.

To find out more about the properties and composition of alloy C276, take a look at our product page.