Grades Composition and properties  
   
Grade ISO
Code
U.S.
Code
Binder Density Hardness Transverse rupture strength KIC* (Shetty)
[m %] [g/cm3] HV30 HRA [MPa] [P.S.I.] [MPa*m1/2]
Ultrafine grades
CTU08L K10 C-2 4.2 15.05 2200 95.2 3700 536,600 8.4
TSF22 K10-K20 C-2 8.2 14.55 1930 93.7 4400 638,000 9.2
TSF44 K10-K20 C-2 12.0 14.10 1730 92.7 4600 667,000 9.8
Submicron grades
CTS12D K05-K10 C-3 6.0 14.80 1820 93.1 3600 522,100 9.3
CTS15D K10-K30 C-3 7.5 14.70 1750 92.8 3700 536,000 9.5
CTS18D K20-K40 C-2 9.0 14.55 1590 91.9 3650 529,400 10.7
CTS20D K20-K40 C-2 10.0 14.38 1600 91.9 4000 580,100 10.4
CTS25D K20-K40 C2 12.5 14.13 1540 91.5 4300 623,700 11.8
CTS30D K30-K40 C2 15.0 13.84 1400 90.4 4300 623,700 13.2
Fine grades
CTF12E K15 C-2 6.0 15.00 1630 92.1 2200 319,100 9.9
CTF25E K30-K40 C-2 12.5 14.15 1300 89.5 3500 507,600 15.0
Cermet
CTF28T K05-K10 C-2 14.1 6.40 1580 91.8 2000 290,100 8.5

Classification of the WC grain size
Average grain size [µm] Classification
< 0.2 nano
0.2 - 0.5 ultrafine
0.5 - 0.8 submicron
0.8 - 1.3 fine
1.3 - 2.5 medium
2.5 - 6.0 coarse
> 6.0 extra-coarse

Comments:
1. The data in this table represents typical material parameters. We reserve the right to modify the data due to technical progress or due to further development within our company.
2. KIC*: The measured critical tension intensity factors (KIC) depend to a high degree on the sample geometry and sample preparation. A direct comparison with parameters which have been determined by means of a different method is therefore not admissible.