Monel 404 alloy is a single-phase solid solution Ni-Cu alloy, which has good corrosion resistance in many medium environments. It has good corrosion resistance from a slightly oxidizing medium environment to a neutral environment to a suitable reducing environment. This alloy has a long history of use as a corrosion-resistant material.
Single-phase solid solution Ni-Cu alloy
good corrosion resistance
Executive standard
ASTM B 164 (bar, wire), ASTM B 564 (forged),ASTM B 127(board, strip), ASTM B 165 (seamless pipe).
chemical composition
element Content %
nickel 52.0min~57.0max
copper balance
iron 0.5max
manganese 0.1max
carbon 0.15max
silicon 0.1max
aluminum 0.05max
sulfur 0.024max
physical properties
density 0.322 lb/in3
8.91g/cm3
Resistivity 4.98e-005 ohm-cm
heating energy 0.414 J/g-°C
thermal conductivity 21 W/m-°C
magnetic 1.0047 (AT 78 0F)
Coefficient of Thermal Expansion, in./in./ F x 106
70-200F 7.4
70-500F 8.5
70 - 1000F 9.2
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