Metallographic Procedures for Cast Irons

Preparation of Cast Iron Specimens

  • Grind with 220-320 grit SiC (P240-P400), 240-300 rpm, 6 lbs/specimen, complementary rotation, until all samples in holder are co-planar
  • Polish with 9-µm Metadi Supreme Diamond on an Ultra-Pol psa cloth, at 150 rpm, comp. rotation, 5 minutes
  • Polish with 3-µm Metadi Supreme Diamond on a Texmet 1000 psacloth at 150 pm, comp. rotation, 4 minutes
  • (Optional) Polish with 1-µm Metadi Supreme Diamond on a Trident psacloth at 150 rpm, comp. rotation, for 3 minutes
  • Final polish with 0.05-µm Masterpolish alumina suspension on Microcloth psa pad, 120-150 rpm, contra rotation, for 2 minutes


The articles and presentations that can be down-loaded from this web site are based upon work done by GFV while employed at Bethlehem Steel (1967-1983), Carpenter Technology (1983-1996), Buehler Ltd. (1996-2009) and Struers (2009-Present) and from the authors consulting work for companies such as, Latrobe Steel, Scot Forge, etc., and from his litigation work. GFV's bylined articles appearing in various issues of the ASM Handbook series have been listed here courtesy of ASM International, Materials Park, Ohio.