The serial products
have comfortable mechanical properties
and extensive suitability, processed
through special control with different
working conditions and used different
alloying elements.
Microstructure
shock
toughness
ak (J/cm2)
Rockwell
hardness (HRC)
Service Life (machine)
above
φ3m
under φ3m
M+M7C3≥+M23C6+A
＞5
≥55
5--10years
raw
materials grinding machine＞5years;cement
grinding machine≥3years
