Jul 3 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication and Heat Treatment
Machinability
Forming
Welding
Heat Treatment
Forging
Hot Working
Other Designations
Applications
Introduction
Nickel 270 alloy is a high purity nickel alloy that has high ductility and low base hardness. It is made by powder metallurgy. It contains 99.95% nickel in addition to traces of minor elements.
The following datasheet will discuss in detail about nickel 270 alloy.
Chemical Composition
The chemical composition nickel 270 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Nickel, Ni |
≥99.9 |
|
Iron, Fe |
≤0.050 |
|
Carbon, C |
≤0.020 |
|
Copper, Cu |
≤0.010 |
|
Titanium, Ti |
≤0.0050 |
|
Silicon, Si |
≤0.0050 |
|
Magnesium, Mg |
≤0.0050 |
|
Manganese, Mn |
≤0.0030 |
|
Sulfur, S |
≤0.0030 |
Physical Properties
The following table shows the physical properties of nickel 270 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
8.89 g/cm3 |
0.321 lb/in3 |
|
Melting point |
1454°C |
2649°F |
Mechanical Properties
The mechanical properties of nickel 270 alloy are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (annealed) |
345 MPa |
50000 psi |
|
Yield strength (annealed) |
110 MPa |
16000 psi |
|
Elongation at break (annealed) |
50% |
50% |
Thermal Properties
The thermal properties of nickel 270 alloy are given in the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-100°C/68-212°F) |
13.3 µm/m°C |
7.39 µin/in°F |
|
Thermal conductivity |
86 W/mK |
597 BTU.in/hrft².°F |
Fabrication and Heat Treatment
Machinability
Nickel 270 alloy can be machined by conventional means using high-speed steel tooling.
Forming
The alloy can be formed by conventional means.
Welding
Nickel 270 alloy can be welded by conventional welding techniques.
Heat Treatment
Nickel 270 alloy can be heat-treated 816°C (1500°F) and air cooled.
Forging
The alloy can be forged at 704 to 1038°C (1300 to 1900°F).
Hot Working
Nickel 270 alloy can be hot-worked at temperatures of 704 to 1038°C (1300 to 1900°F).
Other Designations
Other designations that are equivalent to nickel 270 alloy include the following:
Applications
The following are the list of applications of nickel 270 alloy:
-
Fluorescent light components
-
Electronic cathodes or anodes
-
Resistance thermometers