Monel 400
Monel 400
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Monel 400
Monel 400 material is a nickel-copper alloy (about 67% Ni – 23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working. This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength.
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Chemical Composition:

Element

Min

Max

Carbon

--

0.3

Nickel

63.0

70.0

Iron

--

2.5

Silicon

--

0.5

Manganese

--

2.00

Sulfur

--

0.024

Copper

28.0

34.0



Standard of execution:

Form

ASTM

Rod

B 574

Plate, sheet and strip

B 575

Seamless pipe and tube

B 622

Welded pipe

B 619, B 775

Welded tube

B 626, B 751

Welding fitting

B 366

Forged or rolled pipe flange and forged fitting

B 462

Billet and bar for reforging

B 472

Forging

B 564

Characteristics:

Corrosion resistance in an extensive range of marine and chemical environments. From pure water to nonoxidizing mineral acids, salts and alkalis.

Good mechanical properties from subzero temperatures up to about 480C.

Good resistance to sulfuric and hydrofluoric acids. Aeration however will result in increased 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.

In what forms is Monel 400 Available at Taixin?

Sheet

Plate

Bar

Pipe & Tube (welded & seamless)

Fittings

Wire

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