Equivalent designations: UNS N04404 DIN W. Nr. 2.4867 Monel 404 Trade Name:Alloy404; UNS N04400; W.Nr. 2.4867 Introduction There are a number of MONEL alloys available commercially including MONEL 400, 401, 404, R-405, 450 and K-500. The standard forms in which MONEL alloys are available are hexagon, flats, forging stock, sheet, tube and pipe ect. MONEL 404 has a relatively high copper content, hence is suitable for electric and electronic applications. The content of the elements that make up the MONEL 404 is adjusted such that the alloy has a very low Curie temperature, low permeability and good brazing characteristics. Chemical composition % Ni Cu Fe C Mn Si S Al min 52.0 balance max 57.0 0.50 0.15 0.10 0.10 0.024 0.05 Physical properties Density 8.91 g/cm3 Melting range 1300-1350℃ Features:Monel 404 has low magnetic permeability and low Curie temperature. Because its low magnetic permeability is not significantly affected by processing and fabrication, it is particularly suitable for electronic parts. Applications:Specialized electrical and electronic applications.