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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It does not indicate, except in astm a247 very broad way, the origin of the graphite or the suitability xstm the iron-carbon alloy for a particular service.
Historical Version s – view previous versions of standard. Our laboratory also provides laboratory services astm a247 plastic testingmetal astm a247rubber testingoil testingpaint testingplating testingadhesive testingcircuit board testingand other testing.
ASTM A – 17 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
Flake graphite can have a desirable random astm a247 Type A or a weaker oriented distribution Type D or E. ASTM A provides images used to astm a247 the form, distribution, and size of the graphite in an iron casting.
The size of graphite particles can range from very small Size 8 to relatively large Size 1. Graphite microstructure is useful in ast the strength and impact resistance of an iron casting at specific locations.
Link to Active This link will always route to the current Astm a247 version of the standard.
ASTM A – 10 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
Iron castings with graphite flakes gray iron are not as strong or impact resistant as those with round nodular graphite ductile iron. This test method is intended to be applicable for all astm a247 alloys containing graphite particles, and may be applied to gray irons, malleable astm a247, compacted graphite irons, and the ductile nodular irons.
In a2477 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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not astm a247 as part of the standard.
Material testing you can trust since Graphite microstructure results are presented in the form of a microscopic image with a results table astm a247 the graphite. The excess carbon in iron castings separates into graphite of various forms.
Advanced Plastic and Material Testing, Astm a247.
No other units of measurement are included astm a247 this standard. This method is only intended for the microstructure of graphite in iron a2477. Other microstructural details must be evaluated using different methods.
ASTM A247 – GRAPHITE MICROSTRUCTURE TESTING SERVICES
Astn microstructural results require significant preparation to obtain a mirror finish with no scratches or edge rounding prior to etching. ASTM A is a method of evaluating astm a247 microstructure of graphite in iron castings.
One section 1 x 1 x 0. It is the responsibility of the user of this standard to establish appropriate safety and health practices astm a247 determine the applicability of regulatory limitations prior to use.
High magnification optical microscopy is required to reveal astm a247 atsm.