Also, please be a little more specific regarding hardened material in EN. For example, these are just a few of the standards that could apply to your question.
BS EN 10132-2:2000
Cold rolled narrow steel strip for heat treatment
BS EN 10267:1998
Ferritic-pearlitic steels for precipitation hardening
from hot-working temperatures
BS EN 10270-2:2001
Steel wire for mechanical springs.
Oil hardened and tempered spring steel wire
BS EN 10267:1998
Ferritic-pearlitic steels for precipitation hardening
from hot-working temperatures
Hardened material in EN 
Re: Hardened material in EN
