DIFF Subgroup
C21D 6/04 Hardening by cooling below 0 degrees Celsius
Introduced: July 1974
Title
Titles differ between systems:
IPC: Hardening by cooling below 0° C
CPC: Hardening by cooling below 0 degrees Celsius
Full Title
Full titles differ between systems:
IPC:
Heat treatment of ferrous alloys > Hardening by cooling below 0° C
CPC:
Heat treatment of ferrous alloys > Hardening by cooling below 0 degrees Celsius
No child classifications to compare. This is a leaf node in both IPC and CPC.