Why Is It Not Possible To Harden Unalloyed Tool Steel Part Right Thro

1.	Why Is It Not Possible To Harden Unalloyed Tool Steel Part Right Through Its Full Thickness ?
Answer» Because it REQUIRES very high cooling RATE which is only possible for its OUTER surface. Because it requires very high cooling rate which is only possible for its outer surface.

Why Is It Not Possible To Harden Unalloyed Tool Steel Part Right Through Its Full Thickness ?

Answer»

Because it REQUIRES very high cooling RATE which is only possible for its OUTER surface.

Because it requires very high cooling rate which is only possible for its outer surface.