|
O1 COLD WORK TOOL STEEL
|
|
|
TEMPERING |
||
| Tools must be
tempered as soon as possible following completion of the quenching operation. Heat to within 190°C / 210°C and hold for a minimum period of one hour. Longer times are advised for larger sections. The tempering curve values indicates typical hardness values obtained from oil quenching test samples from 790°C. |