Monel 405 (Alloy 405, UNS N04405) Tube/Pipe Description
Monel 405 (Alloy 405, UNS N04405) Tube/Pipe is a nickel-copper alloy that has a content of cobalt and molybdenum. It has increased sulfur content than Monel 400, thus enhancing machinability into a free-cutting Monel alloy. Like Monel 400, alloy R405 is resistant to seawater and steam at high temperatures, as well as salt, and caustic solutions alkalis. It is also resistant to sulfuric acids and performs well in subzero temperatures.
There is no need for post-weld heat treatment for Monel R405. However, thorough cleaning after welding is critical for optimum corrosion resistance. Otherwise, there is the risk of contamination and embrittlement.
Monel 405 (Alloy 405, UNS N04405) Tube/Pipe Specification
Main Specification
|
Density
|
8.80g/cm3
|
|
Specific heat
|
427 J/kg-°K (20℃)
|
|
Modulus of Elasticity
|
26 000 ksi
|
|
Thermal Conductivity
|
21.8 W/mK
|
|
Melting range
|
1300-1350℃
|
Mechanical Properties
|
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
|
Chemical Composition
|
Element
|
Composition (%)
|
|
Nickel (Ni)
|
63.0 min
|
|
Copper (Cu)
|
28.0 - 34.0
|
|
Iron (Fe)
|
2.5 max
|
|
Manganese (Mn)
|
1.5 max
|
|
Silicon (Si)
|
0.5 max
|
|
Carbon (C)
|
0.3 max
|
|
Sulfur (S)
|
0.025 - 0.060
|
Standards
UNS N04405
ASME SB-164
AMS 4674
QQ-N-281
ASTM B-164
MIL-N-894
Monel 405 (Alloy 405, UNS N04405) Tube/Pipe Applications
- Meter and valve parts
- Screw machine products
- Sulfuric acid plants
- Heat exchangers
- Production
- Crude oil transfer piping
- Propeller and pump shafts
Monel 405 (Alloy 405, UNS N04405) Tube/Pipe Packaging
Our Monel 405 (Alloy 405, UNS N04405) Tube/Pipe is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Can Monel 405 Tubes be welded?
Yes, Monel 405 tubes can be welded using standard welding techniques such as TIG or MIG welding, but proper precautions are required to maintain corrosion resistance.
How does Monel 405 differ from Monel 400?
Monel 405 contains added sulfur for improved machinability, making it easier to machine than Monel 400 while retaining similar corrosion resistance and strength properties.
