The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
KeywordsASTM A247 - Castings - Ductile Cast Iron - Graphite - Gray Cast Iron - Iron Castings - Malleable Cast Iron - Metallography - Microstructure - X-Ray Diffraction Technique
ICS CODE77.140.80 (Iron and steel castings)
UNSPSC CODE31100000 (Castings and casting assemblies)
ASTM A247-19, Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings, ASTM International, West Conshohocken, PA, 2019, www.astm.org