ASTM A247-19
Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- Standard No.
- ASTM A247-19
- Release Date
- 2019
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM A247-24
- Latest
- ASTM A247-24
- 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 concisely define 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM A247-19 Referenced Document
- ASTM E3 Standard Practice for Preparation of Metallographic Specimens
ASTM A247-19 history
- 2024 ASTM A247-24 Standard Test Method for Visual Evaluation of Graphite in Iron Castings
- 2019 ASTM A247-19 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2017 ASTM A247-17 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2016 ASTM A247-16a Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2016 ASTM A247-16 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2010 ASTM A247-10 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2006 ASTM A247-06e1 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 2006 ASTM A247-06 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 1967 ASTM A247-67(1998)e1 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
- 1998 ASTM A247-67(1998) Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
