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ASTM A247-67(1998)
- Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- standard by ASTM International, 05/10/1998
- Publisher: ASTM
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1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.