A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions. This nickel alloy is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated.
What are the characteristics of Monel 400?
Excellent resistance to neutral and alkaline salt
Good mechanical properties from sub-zero temperatures up to 1020° F
Excellent resistance to rapidly flowing brackish water or seawater
Chemical Composition, %
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C |
Mn |
S |
Si |
Ni |
Cu |
Fe |
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.30 max |
2.00 max |
.024 max |
.50 max |
63.0 min |
28.0-34.0 |
2.50 max |
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In what applications is Monel 400 used?
Chemical and hydrocarbon processing equipment
Gasoline and freshwater tanks
ASTM Specifications
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Pipe Smls |
Pipe Welded |
Tube Smls |
Tube Welded |
Sheet/Plate |
Bar |
Forging |
Fitting |
Wire |
B165 |
B725 |
B163 |
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B127 |
B164 |
B564 |
B366 |
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