Monel - Model R-405 - High Performance Alloys Brochure

MONEL nickel-copper alloy R-405 (UNS N04405) is the free-machining grade of alloy 400. Its greater sulfur content enhances machinability. It has essentially the same corrosion resistance and physical properties as alloy 400. but a slightly different range of mechanical properties. Alloy R-405 is used chiefly for automatic-screw-machine stock and is not generally recommended for other applications. The composition is shown in Table 1. Thermal expansion of alloy R-405 is shown in Table 2. The values for physical constants and other thermal properties of MONEL alloy 400 may be used for MONEL allov R-405 and are shown in Tables 3 and 4.