tungsten carbide pins

1.PIN

  chemical composition: in the range from WC-92%+Co-8% (YG8)
  Density(g/cm3):13.0-13.5
  HRA:>89(>1300HV30)
  TRS(N/MM2):1660
  Porosity(ISO):<A02B02
  Free carbon and graphite phase:<C00
  n Phase:E00
  Average grain size(um):1.2-1.8
  Riley stoker:71+/-7.5
  pin color : black
  cracks and chips on pins are not allowed

2.BODY

  material: low-alloy structure steel or zinc

  protective coating : zinc

  color : Orchid white

  no cracks, signs of corrosion and tarnishing, zinc coating detachment.