Jan 9 2013
Topics Covered
IntroductionChemical CompositionMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Forming Welding Heat Treatment Cold Working HardeningApplication
Introduction
Super alloys are known as high performance alloys. They are classified into three types such as cobalt-based, nickel-based, and iron-based alloys. They are available in different forms, and have good creep and oxidation resistance. They can function at very high temperatures and in severe mechanical stress environments, and also where high surface stability is required.
Hipernom™ is a soft magnetic alloy. The following datasheet will discuss about Hipernom™.
Chemical Composition
The following table outlines the chemical composition of Hipernom™.
| Element |
Content (%) |
| Nickel, Ni |
80 |
| Molybdenum, Mo |
4.2 |
| Manganese, Mn |
0.5 |
| Silicon, Si |
0.35 |
| Carbon, C |
0.02 |
| Iron, Fe |
Remainder |
Mechanical Properties
The mechanical properties of super alloy Hipernom™ are given in the following table
| Properties |
Metric |
Imperial |
| Tensile strength |
193 MPa |
27993 psi |
| Yield strength |
552 MPa |
80061 psi |
| Elongation at break (in 25.4 mm) |
40% |
40% |
Other Designations
Other designations that are equivalent to of super alloy Hipernom™ include:
- ASTM A753 alloy 4
- MIL N-14411 comp 1
Fabrication and Heat Treatment
Machinability
Hipernom™ has machining characteristics similar to that of austenitic stainless steels. Lard oil lubricant is used for high-speed steel or carbide tools.
Forming
Super alloy Hipernom™ can be formed using standard techniques.
Welding
Super alloy Hipernom™ can be welded using conventional techniques.
Heat Treatment
Super alloy Hipernom™ is heat treated by annealing at 1177°C (2150°F) for 4 h in a dry hydrogen atmosphere followed by slowly cooling in a furnace at 594°C (1100°F).
Cold Working
Super alloy Hipernom™ has good cold forming capacity.
Hardening
Super alloy Hipernom™ can be hardened by cold working.
Application
Super alloy Hipernom™ is used in magnetic shielding and transformer core laminations.