Monel 400 alloy plate UNS N04400/ 2.4360 Monel teel pipe/bar/steel strip/coil

Monel 400 (N04400) Monel alloy is a kind of corrosion resistance with the largest amount, the most widely used and excellent comprehensive performance.

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Monell alloy

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1、 Overview of Monel 400 (N04400):

Monel 400 (N04400) Monel alloy is a kind of corrosion resistance with the largest amount, the most widely used and excellent comprehensive performance. This alloy has excellent corrosion resistance in hydrofluoric acid and fluorine medium, and also has excellent corrosion resistance to hot concentrated alkali solution. At the same time, it is also resistant to corrosion of neutral solution, water, seawater, atmosphere, organic compounds, etc. An important feature of the alloy is that it generally does not produce stress corrosion cracks and has good machinability.

The chemical composition of Monel400 alloy is mainly composed of 30% Cu and 65% Ni plus a small amount of Fe (1% - 2%). The microstructure is typical single-phase austenite. Since nickel and copper can be mutually soluble in any proportion, there is generally no intermetallic phase precipitation. The microstructure of this alloy is observed under the metallographic microscope under non etching conditions. It can be seen that there are very dispersed non-metallic inclusions on the austenitic matrix, such as sulfide and silicate. Under certain conditions, carbides can also be observed. Due to the difference in chemical composition, it can have a variety of alloy grades, but there is no significant difference in corrosion resistance between them. Monel400 alloy is more resistant to the corrosion of reducing media than pure nickel, and more resistant to the corrosion of oxidizing media than pure copper.