ASTM International - ASTM A247-16a

Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings

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Organization: ASTM International
Publication Date: 1 April 2016
Status: historical
Page Count: 13
ICS Code (Iron and steel castings): 77.140.80
significance And Use:

4.1 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... View More

scope:

1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. 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, compacted graphite irons, and the ductile (nodular) irons.

1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to define concisely the graphite microstructure required.

1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

March 1, 2019
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to...
July 1, 2017
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to...
ASTM A247-16a
April 1, 2016
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to...
March 15, 2016
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to...
March 1, 2010
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
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...
November 15, 2006
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
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...
November 15, 2006
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
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...
May 10, 1998
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
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...
August 25, 1967
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
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...
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