 |
Annealing process produce a spheroidal / globular farm of a carbide in a ferritic matric which makes easy machining. |
| |
|
| 1. |
Raw Material Hardness (HRB) |
| |
» HRB - 94 Max. |
| |
|
| 2. |
Micro structure of raw material |
| |
a) Carbe Size |
| |
b) Carbide Network |
| |
c) Segregation |
| |
d) Perlite Amount |
| |
|
| 3. |
Inclusion rating as per IS(4163/'82) |
| |
|
| |
|
| |
 |
| |
|
| |
› Benefits of an Annealing process |
| |
• Reduce hardness of steel |
| |
• Reduce yield & tensile strengh of steel |
| |
• Remove the residual stresses which result from cold working and machining |
| |
• Improve ductility |
| |
• Improve match inability |
| |
• Make the grain refinement possible |