1.what is the Uns N04400 Seamless Pipe?
UNS N04400 seamless pipe is made of Monel 400 alloy, which is a nickel - copper - based alloy. It has excellent corrosion resistance and is suitable for various harsh environments.
2.what is the ASTM grade of Uns N04400 Seamless Pipe?
The relevant ASTM grade for UNS N04400 seamless pipe is ASTM B165 (identical to ASME SB - 165). This standard specification covers cold - worked seamless pipe and tube made of nickel - copper alloy Monel 400 (UNS N04400).
3.What are the mechanical properties of Uns N04400 Seamless Pipe?
Tensile Strength: For seamless pipe or tube with outer diameter (O.D.) ≤ 5″, annealed, the minimum tensile strength is 70 ksi (480 MPa); for seamless pipe or tube with O.D. > 5″, annealed, it is also 70 ksi (480 MPa); for all sizes in the stress - relieved condition, it is 85 ksi (585 MPa).
Yield Strength: For seamless pipe or tube with O.D. ≤ 5″, annealed, the minimum yield strength is 28 ksi (195 MPa); for seamless pipe or tube with O.D. > 5″, annealed, it is 25 ksi (170 MPa); for all sizes in the stress - relieved condition, it is 55 ksi (380 MPa).
Elongation: The elongation is 35% for the annealed condition and 15% for the stress - relieved condition.
4.What is the chemical composition of Uns N04400 Seamless Pipe
It mainly consists of nickel (Ni) and copper (Cu), with a copper content of 28% - 34% and a nickel content of ≥ 63%. Additionally, it may contain small amounts of other elements such as iron (Fe), manganese (Mn), silicon (Si), carbon (C), and sulfur (S).
5.What is the application of Uns N04400 Seamless Pipe?
Marine Industry: It is widely used in seawater desalination plants, as the surface material of marine structures, and for marine components, due to its excellent corrosion resistance in seawater.
Chemical Industry: It is suitable for use in chemical plants, being resistant to various acidic media such as sulfuric acid, hydrofluoric acid, hydrochloric acid, phosphoric acid, and organic acids, as well as alkaline media, salts, and molten salts.
Heat Exchangers: It is used in heat exchangers due to its good thermal conductivity and corrosion resistance.
Petroleum Refining: It is used in petroleum refining plants, especially in equipment and piping systems that come into contact with corrosive media.
