Monel 405
Description:
Monel R405 is the free machining version of Monel 400. 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 400, alloy R-405 is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Monel R405 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 acids when they are de-aerated. As would be expected from its high copper content, alloy R-405 is rapidly attacked by nitric acid and ammonia systems.
Chemical Composition:
|
Chemical Composition Limits |
|||||||
|
Weight % |
Ni+Co |
C |
Mn |
Fe |
S |
Si |
Cu |
|
Nickel 405 |
63 min |
0.3 max |
2.0 max |
2.5 max |
0.025 - 0.060 |
0.5 max |
28.0-34.0 |
Mechanical Properties:
|
Material |
Form and Condition |
Tensile Strength Ksi |
Yield Strength (0.2% Offset) Ksi |
Elongation (%) |
Hardness Rockwell B |
|
Alloy 405 Rod and Bar |
Annealed |
70-85 |
25-40 |
50-35 |
60-76 |
|
Alloy 405 Rod and Bar |
Cold- Drawn, As- Drawn |
85-115 |
50-105 |
35-15 |
85-23C |
|
Alloy 405 Rod and Bar |
Hot Finished |
75-90 |
35-60 |
45-30 |
72-86 |
Specifications:
l ASME SB 164 Bar and Rod
l ASTM B 164 Bar and Rod
l QQ N 281 Bar and Rod
l AMS 4674 Bar and Rod
l AMS 7234
l MIL N 894 Bar and Rod
l NACE MR 01 75 Bar and Rod
l Monel R405 Bar and Rod
Applications:
Alloy R-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.
l Meter and valve parts
l Fasteners
l Screw machine products