Alloy 400 / 2.4360
Alloy 400has outstanding resistance to neutral and alkaline salt solutions. This alloy is one of the few metallic materials which can be used in contact with fluorine, hydrofluoric acid, hydrogen fluoride or their derivatives. It has been a standard material for salt plants for many years. 2.4360 has good mechanical properties from sub-zero temperatures up to about 550 °C and is free from chloride induced stress-corrosion cracking.
Material Data Sheet
| Material Designation | 2.4360 |
|---|---|
| Alloy | Alloy 400 / Monel® |
| DIN | 17743 |
| UNS | N 04400 |
| Trademark | Nicorros® |
| VdTÜV | 263 |
Main fields of application of alloy 400
2.4360 is a single-phase solid-solution nickel-copper alloy with excellent corrosion resistance to a wide range of media. Typical applications include:
propeller and pump shafts for seawater service
industrial heat exchangers
brine heaters and evaporator bodies in seawater desalination plants
feed-water and steam generator tubing in power plants
plants for uranium refining and isotope separation in the production of nuclear fuel
sulphuric and hydrofluoric acid alkylation plants
splash-zone sheathing in offshore structures
cladding for crude oil distillation columns
Chemical composition of alloy 400
| C | Si | Mn | S |
|---|---|---|---|
| ≤ % | ≤ % | ≤ % | ≤ % |
| 0-0.015 | 0-0.5 | 0-1.25 | 0-0.02 |
| Al | Ni | Cu | Fe |
|---|---|---|---|
| % | % | ≤ % | ≤ % |
| 0-0.05 | 63 | 28.0-34.0 | 1.0-2.5 |
Characteristics of alloy 400
| Melting Range | 1300 - 1350°C |
|---|---|
| Density | 8,8 g/cm³ |
| ISO-V notch impact toughness | annealed ≥ 150 J/cm² |
| stress-relieved ≥ 100 J/cm² |
Filler metal (for welding with alloy 400)
Recommended filler metal for 2.4360:
Material No. 2.4377
Covered electrode: 2.4366