Owing to the high performance and excellent corrosion resistance, our Monel Steel 400 is in hige demand in the market. We offer Monel Steel 400 in various forms of bar, sheet, forgings, coil, platye, etc., as per the demand of the clients. our Monel Steel 400 is used in chemical, oil and marine industries.
Characteristics
Corrosion resistance in an extensive range of marine and chemical environments. From pure water to nonoxidizing mineral acids, salts and alkalis.
This alloy is more resistant to nickel under reducing conditions and more resistant than copper under oxidizing conditions, it does show however better resistance to reducing media than oxidizing.
Good mechanical properties from subzero temperatures up to about 480C.
Good resistance to sulfuric and hydrofluoric acids. Aeration however will result in increased corrosion rates. May be used to handle hydrochloric acid, but the presence of oxidizing salts will greatly accelerate corrosive attack.
Resistance to neutral, alkaline and acid salts is shown, but poor resistance is found with oxidizing acid salts such as ferric chloride.
Excellent resistance to chloride ion stress corrosion cracking.
Applications
Feed water and steam generator tubing.
Brine heaters, sea water scrubbers in tanker inert gas systems.
Sulfuric acid and hydrofluoric acid alkylation plants.
Pickling bat heating coils.
Heat exchangers in a variety of industries.
Transfer piping from oil refinery crude columns.
Plant for the refining of uranium and isotope separation in the production of nuclear fuel.
Pumps and valves used in the manufacture of perchlorethylene, chlorinated plastics.
Monoethanolamine (MEA) reboiling tube.
Cladding for the upper areas of oil refinery crude columns.
Propeller and pump shafts.
Chemistry
Chemical Requirements
Ni
C
Mn
S
Si
Cu
Fe
Max
0.3
2.00
0.024
0.5
34.0
2.50
Min
63.0
28.0
Tensile Data
Mechanical Property Requirements
Ultimate Tensile
Yield Strength (0.2% OS)
Elong. in 2 in. or 50mm (or 4D), min.,%
R/A
Hardness
Cold Worked/SR
Min
87 KSi
60 KSi
20B
Max
Min
600 MPa
415 MPa
Max
Hot Worked/SR
Min
80 KSi
40 KSi
30D
Max
Min
552 MPa
276 MPa
Max
Note
B- not applicable to diameters or cross sections under 3/32 in (2.4mm)
D-For hot-worked flats 5/16 in. (7.9mm) and under in thickness the elongation shall be 20% min.
Specifications
Form
Standard
Metal Type
UNS N04400
Bar
ASTM B164 QQ-N-281 Din 17750
Wire
Sheet
ASTM B127 QQ-N-281
Plate
ASTM B127 QQ-N-281
Pipe
ASTM B165
Tube
ASTM B165
Fitting
Forging
ASTM B564
Weld Wire
FM 60/ ERNiCu-7/ 17753
Weld Electrode
FM 190 ENiCu-7
Din
2.4360
Ratings
Machining Data
Carbide tools are suggested for rates better than 50% of Type 304.