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Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
Automaticky preložený názov:
Štandardná skúšobná metóda pre hodnotenie mikroštruktúry grafitu v liatinových odliatkov
NORMA vydaná dňa 1.3.2010
Označenie normy: ASTM A247-10
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.3.2010
Kód tovaru: NS-1744
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
Cast iron, Cast iron (testing), Classification, Classification (standards), Classification (standards)--metals/alloys, Graphite, Iron, Metallographic analysis/inspection, Microstructures, Structural analysis/applications--steel, ICS Number Code 77.140.80 (Iron and steel castings)
Significance and Use | ||||
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. |
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1. Scope | ||||
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. 1.2 The reference standards 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 standards 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. |
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2. Referenced Documents | ||||
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