Nov 26 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical Properties
Introduction
Super alloys also known as high performance alloys are of three types that -include iron-based, cobalt-based and nickel-based alloys. These alloys are available in different shapes and they contain have good oxidation and creep resistance.
Super alloys can function under high mechanical stress and high temperatures and also in places areas that require high surface stability. Super alloys can be strengthened by precipitation hardening, solid-solution hardening and work hardening methods.
The following datasheet provides an overview of high expansion 72™.
Chemical Composition
The chemical composition of high expansion 72™ is outlined in the following table.
| Element |
Content (%) |
| Manganese, Mn |
72 |
| Nickel, Ni |
10 |
| Copper, Cu |
18 |
| Silicon, Si |
0.2 |
| Carbon, C |
0.05 |
| Other elements |
Remainder |
Physical Properties
The following table shows the physical properties of high expansion 72™.
| Properties |
Metric |
Imperial |
| Density |
7.834 g/cm³ |
0.283 lb/in³ |
Mechanical Properties
The mechanical properties of high expansion 72™ are displayed in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
414 MPa |
60 ksi |
| Yield strength |
207 MPa |
30 ksi |
| Hardness, Rockwell B |
85 |
85 |