ASTM A247 PDF

ASTM A Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings. ASTM A – GRAPHITE MICROSTRUCTURE TESTING SERVICES – ASTM A is a method of evaluating the microstructure of graphite in iron castings. The most common gray iron specification will contain Type VII flakes, type A, size , as evaluated in ASTM A Dura-Bar G2 gray iron will contain this type of.

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

As the voice of the U. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Already Subscribed to this document. No other units of measurement are included in this standard. Material testing you can trust since Advanced Plastic and Ashm Testing, Inc.

ASTM A247 – GRAPHITE MICROSTRUCTURE TESTING SERVICES

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You may delete a document from your Alert Profile at any time. Standards Subsctiption may be the perfect solution. Work Item s – proposed revisions of this standard. Subscription pricing is determined by: Good microstructural results require significant preparation to obtain a mirror finish with no scratches or edge rounding prior to etching. Proceed to Checkout Continue Shopping. 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.

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No other units of measurement are included in this standard. This standard is also available to be included in Standards Subscriptions. Need more than one copy?

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The size of graphite particles can range from very small Size 8 to relatively large Size 1. Flake graphite can have a desirable random distribution Type A or a weaker oriented distribution Type D or E. This standard is not included in any packages.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

If the document is revised or amended, you will be notified by email. Axtm the voice of the U.

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. Graphite microstructure is useful in predicting the strength and impact resistance of an iron casting at specific locations. You may delete a document from your Alert Profile at any time.

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. Please first verify your email before subscribing to alerts. Historical Version s – view previous versions of standard. Other microstructural details must be evaluated using different ashm. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

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Please first verify your email before subscribing to alerts. The excess carbon in iron castings separates into graphite of various forms. Iron castings with graphite flakes gray iron are not ashm strong or impact resistant as those with round nodular graphite ductile iron.

This method is only intended for the microstructure of graphite in iron castings. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

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. ASTM A provides images used to classify the form, astmm, and size of the graphite in an iron casting. 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.