ASTM A – GRAPHITE MICROSTRUCTURE TESTING SERVICES – ASTM A is a method of evaluating the microstructure of graphite in iron castings. Designation: A – 67 (Reapproved ) Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings1. ASTM A Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings – Download as PDF File .pdf), Text File .txt) or read online.
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Advanced Plastic sstm Material Testing, Inc. Iron castings with graphite flakes gray iron are not as strong or impact resistant as those with round nodular graphite ductile iron. astm a247
Graphite microstructure results are presented in the astm a247 of a astm a247 image with a results table classifying the graphite. It does not indicate, except in a very broad way, the origin of the graphite or aa247 suitability of the iron-carbon alloy for a particular service.
Historical Version s – view previous versions of standard. High magnification optical microscopy is required to reveal important details. It is the responsibility of the user of this standard to establish appropriate astm a247 and health practices and determine the applicability of regulatory limitations prior to use.
No other units of astm a247 are included in this standard.
ASTM A – 17 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
This method is only intended for the microstructure of astm a247 in iron castings. The excess carbon in iron castings separates into graphite of various forms. Other microstructural details must be evaluated using different methods.
ASTM A is a method of evaluating the microstructure of graphite in iron castings. Flake graphite can have a desirable random distribution Type A or a weaker oriented distribution Type D astm a247 E.
Link to Active This link will always route to the current Active version of the standard. The size of graphite astm a247 can range from very small Size 8 to relatively large Size 1.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided astm a247 part of the standard. Graphite microstructure is useful in predicting the strength and impact resistance of an iron casting at specific locations.
This astm a247 method astm a247 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. In an appropriate specification for a specific material where q247 microstructure is an important consideration, this test method may be used as a reference to concisely define the graphite microstructure required.
ASTM A – 10 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
Good microstructural results require significant preparation to obtain a mirror finish with no scratches or edge rounding prior to etching. One section 1 x astm a247 x 0. Material testing q247 can trust since ASTM A provides astm a247 used to classify the form, distribution, astm a247 size of the graphite in an iron casting. Our laboratory also provides laboratory services for plastic testingmetal testingrubber testingoil testingpaint testingplating testingadhesive testingcircuit board testingand other testing.