● Grade: W12Cr4V5Co5
● Unified Digital Code: T71245
● Standard: GB/T9943-2008 (2008.5.13 release 2008.11.1 implementation)
● Use Features
(1) hardness
At about 600 ℃ operating temperature, can still maintain a high hardness. Red hardness of the thermal deformation of steel molds and high-speed cutting tools is very important to performance.
(2) wear
With good wear resistance, that is the ability to resist wear and tear. Tools to withstand considerable pressure and friction conditions, can still maintain its shape and size unchanged.
(3) strength and toughness
Cobalt high speed steel high speed tool steel in general on the basis of a certain amount of cobalt, can significantly increase
Steel hardness, wear resistance and toughness.
(4) other performance
Has a certain high temperature mechanical properties, thermal fatigue resistance, thermal conductivity and wear corrosion and so on.
● Chemical composition:
C: 1.50 ~ 1.60
Mn: 0.15 ~ 0.40
Si: 0.15 ~ 0.40
S: ≤ 0.030
P: ≤ 0.030
Cr: 3.75 ~ 5.00
V: 4.50 ~ 5.25
W: 11.75 ~ 13.00
Co: 4.75 ~ 5.25
