Products Description

Alloy 400, also known as UNS N04400 or Monel 400, is a ductile nickel-copper alloy that offers excellent resistance to various corrosive conditions. It is commonly used in environments that range from mildly oxidizing to neutral, as well as moderately reducing conditions.One of the notable features of Alloy 400 is its resistance to corrosion by a wide range of substances, including seawater, steam, salt, and caustic solutions. This makes it particularly well-suited for applications in marine environments and other nonoxidizing chloride solutions.The alloy exhibits good mechanical properties over a wide temperature range and is often used in applications such as chemical processing, marine engineering, hydrocarbon and petrochemical processing, and equipment for the production of gasoline, freshwater, and steam.It's worth noting that Alloy 400 has a relatively low corrosion rate in flowing seawater but can be susceptible to stress corrosion cracking in certain conditions. Therefore, it is essential to consider the specific operating conditions and consult the alloy's manufacturer or a materials engineer for guidance on its suitability for a particular application.

General Properties

Alloy 400 (UNS N04400) is a nickel-copper alloy that offers excellent resistance to a wide range of corrosive environments. It is known for its resistance to chloride stress corrosion cracking, making it highly suitable for applications in marine and chemical processing industries where exposure to chlorides is common.One of the advantages of Alloy 400 is its high strength and toughness, which are maintained over a broad temperature range. This property makes it suitable for various operating conditions.Alloy 400 is extensively used in corrosive applications where it can be exposed to chemicals, saltwater, and other aggressive environments. It finds applications in marine equipment, chemical processing equipment, valves, pumps, heat exchangers, and various other components.The alloy can be readily fabricated using conventional processing operations such as hot and cold working, machining, and welding. This makes it convenient for manufacturers to work with and produce complex components.Additionally, there is a variant of Alloy 400 called Alloy 400AR, which is produced in the as-rolled condition to meet higher strength requirements. This variant offers enhanced strength while retaining many of the corrosion-resistant properties of the base alloy.It's important to note that while Alloy 400 has excellent corrosion resistance, it may not be suitable for highly oxidizing environments or environments containing strong acids. In such cases, it is advisable to consult with materials engineers or alloy manufacturers to determine the best choice for the specific application.