2.4360
- N04400
- Monel 400
Alloy 400 is a single phase, solid-solution alloy that offers superior resistance to many corrosive environments over a temperature range from sub-zero to 426°C. Alloy 400 has been widely used in many applications but has been particularly useful in marine and chemical processing. Typical applications include valves; pumps and propeller shafts; marine fixtures and fasteners; electrical and electronic components; springs; chemical processing equipment; gasoline and fresh water tanks; crude petroleum stills, process vessels and piping; boiler feedwater heaters and heat exchangers; and deaerating heaters.
Mechanical Properties
| Tensile strength: | 517-655 | N/mm² |
| Yield strength 0,2% : | 172-345 | ≥ N/mm² |
| Elongation: | 60-35 | ≥ % |
| Hardness HB30: | 125-215 (hot rolled) 110-140 (hot rolled, annealed) | ≤ HB |
Chemical Composition
Nickel
Ni
63-70% min
Carbon
C
0,3% max
Silicon
Si
0,50% max
Magnese
Mn
2,00% max
Sulphur
S
0,024% max
Copper
Cu
28,0-34,0% max
Heat Treatment
871-982°C followed by rapid quench.
Highly resistant to hydrofluoric acid, and resistant to sulphuric and hydrochloric acids under reducing conditions Resistant to chloride stress corrosion, and exhibits very low corrosion rates in flowing seawater
Alloy 400 can be welded to itself or dissimilar metals by utilizing conventional welding processes. These include:
- conventional or hot wire GTAW (TIG), plasma arc, GMAW (MIG/MAG) and SMAW (MMA).
The choice of welding product is dependent upon the materials being welded and the environment in which it occurs.
Marking
All material will be marked as follow:
- Manufacturer’s name
- Material grade
- Size
- Heat Number
Certification
Material will be delivered with certificate EN 10204 3.1
