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Monel 405

Monel 405 is the free machining version of Monel 405. It is a nickel-copper alloy with a controlled amount of sulfur added to provide sulfide inclusions that act as chip breakers during machining. Like Monel 405, alloy Monel 405 is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Monel 405 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. 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 steel alloy is particularly resistant to hydrochloric and hydrofluoric acidswhenthey are de-aerated. As would be expected from its high copper content, alloy Monel 405 is rapidly attacked by nitric acid and ammonia systems.

Monel 405 Nickel alloy usually used in the following industries :UNS N04405

Monel 405 is chiefly used for automatic-screw-machine stock and it not generally recommended for other applications. Screw machine stock for fasteners and similar high production run items.
Meter and valve parts
Fasteners
Screw machine products

Monel 405 Nickel base alloy Chemical Composition, %

Ni

Cu

Fe

S

Mn

C

Si

63.0 min

28.0-34.0

2.5 max

0.025-0.060

2.0 max

0.3 max

0.5 max

Monel 405 Nickel base alloy Mechanical Properties (Nominal Mechanical Property Range of Monel Alloy Monel 405 Rod and Bar)

Condition

Tensile (ksi)

.2% Yield (ksi)

Elongation %

Hardness Brinell (3000 kg)

Hardness Rockwell B

Annealed

70-85

25-40

50-35

110-140

60-76

Hot-Finished

75-90

35-60

45-30

130-170

72-86

Cold-Drawn, As-Drawn

85-115

50-105

35-15

160-245

85-23C

The ranges shown are composites for various product sizes and therefore are not suitable for specification purposes.

Monel 405 Nickel base alloy characteristics :
Characteristics are essentially the same as those of Monel 400 such as:
Good machinability and is recommended for use with automatic screw machines
Resistant to seawater and steam at high temperatures
Excellent resistance to rapidly flowing brackish water or seawater
Excellent resistance to stress corrosion cracking in most freshwaters
Particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated
Offers some resistance to hydrochloric and sulfuric acids a modest temperatures and concentrations, but is seldom the material of choice for these acids
Excellent resistance to neutral and alkaline salt
Resistance to chloride induced stress corrosion cracking
High resistance to alkalis

Monel 405 Nickel base alloy forms Available:
Round Bar (ASTM specification B 164)
Hex Bar

China Special Steel Limited is a Monel 405 Nickel alloy Sheet/Plate/Strip/Coil/tube/Pipe/ Ring/Bar/Rod/Forging/Fittings/Flange professional manufacturer and supplier. If you have any information about Monel 405 Nickel alloy chemical composition, Mechanical property, density,Heat treatment, melting point ,or any other service, please contact with our sales team.

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