Jul 9 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Nickel alloy L605/25 is a non-magnetic chromium, nickel, tungsten, cobalt alloy. It has excellent high temperature strength and good oxidation resistance at about 1093ºC (2000ºF). The alloy is precipitation hardenable, and has excellent resistance to sulfidation.
The following section will provide an overview of nickel alloy L605/25.
Chemical Composition
The chemical composition nickel alloy L605/25 is outlined in the following table.
|
Element |
Content (%) |
|
Chromium, Cr |
19-21 |
|
Tungsten, W |
14-16 |
|
Nickel, Ni |
9-11 |
|
Iron, Fe |
3 |
|
Manganese, Mn |
1-2 |
|
Silicon, Si |
0.4 |
|
Carbon, C |
0.05-0.15 |
|
Phosphorus, P |
0.04 |
|
Sulfur, S |
0.03 |
Physical Properties
The following table shows the physical properties of nickel alloy L605/25.
|
Properties |
Metric |
Imperial |
|
Density |
9.13 g/cm3 |
0.330 lb/in3 |
|
Melting point |
1410°C |
2570°F |
Mechanical Properties
The mechanical properties of nickel alloy L605/25 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
862 MPa |
125 ksi |
|
Yield strength |
310 MPa |
45 ksi |
|
Elongation at break |
30% |
30% |
Thermal Properties
The thermal properties of nickel alloy L605/25 are given in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@25-100°C/70-200°F) |
12.3 µm/m°C |
6.8 µin/in°F |
|
Thermal conductivity |
9.4 W/mK |
65 BTU.in/hrft².°F |
Applications
The following are the list of applications of nickel alloy L605/25:
-
Heart valves
-
Springs
-
High temperature bearing races and ball bearings
-
Gas turbine engine combustion chambers and afterburners.