Jul 9 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication and Heat Treatment
Machinability
Welding
Heat Treatment
Forging
Cold Working
Annealing
Other Designations
Applications
Introduction
Alloy R405 is a nickel-copper alloy with excellent corrosion resistance in an extensive range of marine and chemical environments. It has good mechanical properties from subzero temperatures up to about 480°C. The alloy is slightly magnetic at room temperature. It has excellent resistance to chloride ion stress corrosion cracking.
The following datasheet will provide an overview of nickel alloy R405.
Chemical Composition
The chemical composition nickel alloy R405 is outlined in the following table.
|
Element |
Content (%) |
|
Nickel, Ni |
63 |
|
Copper, Cu |
28-34 |
|
Iron, Fe |
2.5 |
|
Manganese, Mn |
2 |
|
Silicon, Si |
0.5 |
|
Carbon, C |
0.3 |
|
Sulfur, S |
0.025-0.06 |
Physical Properties
The following table shows the physical properties of nickel alloy R405.
|
Properties |
Metric |
Imperial |
|
Density |
8.80 g/cm3 |
0.318 lb/in3 |
|
Melting point |
1300-1350°C |
2370-2460°F |
Mechanical Properties
The mechanical properties of nickel alloy R405 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
487-586.05 MPa |
70-85 ksi |
|
Yield strength |
172.4-275-8 MPa |
25-40 ksi |
|
Elongation at break |
35-50% |
35-50% |
Thermal Properties
The thermal properties of nickel alloy R405 are given in the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@-180°C/-300°F) |
11.1 µm/m°C |
6.1 µin/in°F |
|
Thermal conductivity |
16.5 W/mK |
113 BTU.in/hrft².°F |
Fabrication and Heat Treatment
Machinability
Nickel alloy R405 can be machined using high-speed tool steel.
Welding
Nickel alloy R405 can be welded using standard welding methods.
Heat Treatment
The alloy may be annealed, but it does not respond to heat treatment.
Forging
The alloy cannot be forged due to high sulfur content.
Cold Working
The alloy can be readily cold worked, especially in screw machine operations.
Annealing
Annealing of nickel alloy R405 can be performed at 927°C (1700°F) and air cooled.
Other Designations
Other designations that are equivalent to nickel alloy R405 include the following:
-
ASTM F468
-
ASTM B164 CLASS B
-
AMS 4674
-
ASTM F467
-
QQ N281
Applications
The following are the list of applications of nickel alloy R405:
-
Fasteners
-
Meter and valve parts
-
Screw machine products
-
Brine heaters, sea water scrubbers in tanker inert gas systems
-
Propeller and pump shafts
-
Feed water and steam generator tubing.