When manufacturing end use applications that will be used in extreme environments such as those that need to withstand extreme temperatures, high pressure or incredibly corrosive environments, selecting an alloy that is up to that task is critical. Monel 400 is a Nickel-Copper alloy that can be generally characterized as having good corrosion resistance, good weldability, and moderate to high strength. It is resistant to sea water and steam at high temperatures as well as caustic solutions and salt.
It is ideal for applications used in oil refineries throughout the world and it is widely used in the chemical and marine industries as well. In the past, the oil and the gas industry relied on what are typically considered low end corrosion resistant alloys. Over the last decade or so, this industry has adopted more advanced materials to reduce failure experienced over time in their equipment and parts. The cost impact of overcoming the downtime inducing effects of corrosion, pressure and extreme temperature, as well as failure-rate & safety, prompted this industry to look for materials like Monel 400 which offered increased reliability in harsh conditions.
Monel alloys good corrosion resistance and high strength properties also make it a great option in marine engineering, piping, cabling, chemical processing, as well as a variety of other applications depending upon what form it is used in. Being a resistant alloy, Monel 400 stands up to high temperature steam atmospheres and rapidly flowing brackish/sea water, while also maintaining excellent resistance to stress corrosion cracking in most freshwaters. It is useful in temperatures up to 1000°F (538°C) so with its anti-corrosive properties and toughness, can be an ideal choice of alloy for very unique needs and applications.
Courtesy of Ulbrich.