The higher sulphur concentration in Monel Nickel Alloy 405 Bars improves machinability. It has similar corrosion resistance and physical properties to alloy 400, but a somewhat diverse range of mechanical properties. Monel Nickel Alloy 405 Bars are mostly used in semiconductors, medical surgical equipment, fasteners, cross-country gas and water pipelines, atomic energy, chillers and cooling systems, pulp and paper industries, automobiles, LNG, desalination, defence, and aerospace applications.
| C | Mn | Cu | Si | S | Ni | Fe | |
| Min. | — | — | 28.0 | — | 0.025 | 63.00 | — |
| Max. | 0.03 | 2.0 | 34.0 | 0.05 | 0.060 | Bal. | 2.5 |
| Yield Strength Ksi (MPa) |
Tensile Strength ksi (MPa) |
Elongation | |
| Min. | 70.0 (483) | 90.0 (621) | 15% |
| Max. | 100.0 (690) | 130.0 (896) | — |
Hardness : 35 HRC maximum