Nov 20 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Applications
Introduction
Master alloys are a pre-alloyed combination of alloying elements. They are available in many forms, and are used globally. They are semi-finished products, and are also known as grain refiners, hardeners, or modifiers based on their applications. They are suitable for structure control and adjusting the liquid metal’s composition in order to obtain a desired result. They are used in place of a pure metal because they are economical, and save production time and energy.
Aluminium/aluminum boron master alloy is added as a boron additive in aluminum alloys. The following datasheet will discuss about aluminium/aluminum boron master alloy.
Chemical Composition
The following table shows the chemical composition of aluminium/aluminum boron master alloy.
|
Element |
Content (%) |
|
Boron, B |
2.5-3.5 |
|
Iron, Fe |
0.25 |
|
Aluminum, Al |
Remainder |
|
Others |
0.5 |
Physical Properties
The physical properties of aluminium/aluminum boron master alloy are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
2.5-2.6 g/cm³ |
0.090-0.093 lb/in³ |
|
Melting point |
690-700°C |
366-372°F |
Applications
Aluminium/aluminum boron master alloy is used for boron treatment of EC grade aluminium.