[MW:13165] What is FC-10 Material is???

Dear Experts,
 
we have performed PMI one of our plunger tool from hydrojettig machine..
 
Percentage we got after PMI is
 
Lead  (Pb)               0.171
Zinc (Zn)                 0.198
Chorumiom(Cr)        0.205
Niobium (Nb)           0.325
Cobalt                     8.810
Tungsten (W)          Blanace
 
 
It looks like FC-10 as per third party report..so can any one help us to find that what is this actual material??
 
Kindly refr from ASTM.I will be very thank ful to you for this act of kindness.
 
 
Best Regards,
Saqib Shirazi