Jan 3 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Super alloys or high performance alloys are of three types that include iron-based, cobalt-based and nickel-based alloys. These alloys are of different shapes and have good oxidation and creep resistance. Super alloys can function under high mechanical stress and high temperatures and also in areas that require high surface stability. Super alloys can be strengthened by precipitation hardening, solid-solution hardening and work hardening methods.
Super alloy S53™ has high corrosion resistance, and is regarded as a material comprising very high strength. The following datasheet provides an overview of super alloy S53™.
Chemical Composition
The chemical composition of super alloy S53™ is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
66.99 |
|
Cobalt, Co |
14 |
|
Chromium, Cr |
10 |
|
Nickel, Ni |
5.5 |
|
Molybdenum, Mo |
2 |
|
Tungsten, W |
1 |
|
Vanadium, V |
0.3 |
|
Carbon, C |
0.21 |
Physical Properties
The following table shows the physical properties of super alloy S53™.
|
Properties |
Metric |
Imperial |
|
Density |
7.98 g/cm³ |
0.288 lb/in³ |
Mechanical Properties
The mechanical properties of super alloy S53™ are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (typical) |
1990 MPa |
288000 psi |
|
Yield strength (@strain 0.200 %) |
≥ 1470 MPa |
≥ 213000 psi |
|
Elastic modulus |
204 GPa |
29600 ksi |
|
Elongation at break |
≥ 11% |
≥ 11% |
|
Reduction of area (transverse) |
55% |
55% |
|
Hardness, Rockwell C (typical) |
54 |
54 |
Thermal Properties
The thermal properties of super alloy S53™ are given in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@24-104°C/75.2-219°F) |
10.53 µm/m°C |
5.850 µin/in°F |
|
Thermal conductivity (@23°C/73.4°F) |
18 W/mK |
125 BTU in/hr.ft².°F |
Applications
Super alloy S53™ is used in drive shafts, landing gears and fasteners and also in applications requiring very high levels of strength.