ASTM A247 PDF

adminComment(0)

A Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings Format, Pages, Price. PDF ASTM License Agreement. 1 This test method is under the jurisdiction of ASTM Committee A-4 on Iron Castings and is the direct responsibility of Subcommittee A on Testing. 2 Annual Book of ASTM Standards, Vol Type III is the graphite form most often seen in malleable iron castings after. Designation: A − 1 This test method is under the jurisdiction of ASTM Committee A04 on Iron Castings and is the direct responsibility of Subcommittee A on Testing. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on.


Astm A247 Pdf

Author:JETTIE MANNEBACH
Language:English, Japanese, Portuguese
Country:Eritrea
Genre:Business & Career
Pages:300
Published (Last):13.10.2015
ISBN:842-5-35949-816-1
ePub File Size:26.86 MB
PDF File Size:15.57 MB
Distribution:Free* [*Registration needed]
Downloads:35164
Uploaded by: CARL

9 Types of graphite flakes in gray iron (AFS-ASTM). In the recommended practice (ASTM A), these charts are shown at a magnification of lOOx. They have. Home; ASTM A standard by ASTM International, 07/01/ Printed Edition + PDF;; Immediate download; $; Add to Cart. Type VII Graphite Evaluation as per ASTM A - (V3). Date: 05 User: Myriam Savard. Units: microns. Sample ID: Magnification: X. Magnification.

Popular Publishers

PO Box C Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

If eutectiform graphite is present. It is a common practice in malleable iron to use nodule count per unit area instead of a comparison chart as given here. Graphite distribution is designated by a capital letter A through E.

A The gradation of sizes shown in each size class from the maximum dimension were computer calculated at the National Bureau of Standards using data obtained from actual micrographs Wyman.

Graphite size is designated by an Arabic numeral 1 through 8. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone. West Conshohocken. Vol Type VII. Users of this standard are expressly advised that determination of the validity of any such patent rights.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards. A 7. Droits d'auteur: Bruno Mau. Coordinador QAQC.

Related Post: ASTM D5034 PDF

Jesus Talledo Bermudez. Isachi Pavel.

Julian Adame. Fabio Augusto Hincapie Henao. Juan AD.

Indera Cahya Pradana. Nicole Keith. Kelly May.

ASTM A247 - GRAPHITE MICROSTRUCTURE TESTING SERVICES

Orlando Rojas. Referenced Documents 2.

Summary of Test Method 3. Characteristic features of graphite particles are designated by numerals and letters. Type, distribution, and size of observed graphite are compared with the idealized microstructures in the standard charts and rated accordingly as closely as possible to the equal or similar microstructures in the charts.

Signicance and Use 4.

ASTM A247-10 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings

Current edition effective Aug. Originally issued Replaces A Test Specimens or Samples 5. When this is impractical, a test lug or projection often can be cast attached to the casting and sawed or broken off to be used as the sample.

If neither of these methods is convenient, microscopical test coupons, such as that recommended by the Ductile Iron Research Committee 12K of the American Foundrymens Society3 should be cast from metal representative of the castings poured.

Polishing 6. Use of diamond powder polishing compound in one of the nal stages of polishing is very effective in retaining the graphite at the polished surface. Classication of Graphite Form with Chart 7.

The percentages of each graphite type are estimated by observation, or better, by counting the particles of each type.

Types present in a sample are to be reported in percentages to total Order ADJA A slightly inferior ductile iron. Graphite size is designated by an Arabic numeral 1 through 8.

Where a mixture of one or more sizes occurs in the same sample. Nodule count.

Type VII. Mixtures of these two may be described by giving both ratings with appropriate percentages. Vol If eutectiform graphite is present. If carefully calibrated. It is a common practice in malleable iron to use nodule count per unit area instead of a comparison chart as given here.

Report of Graphite Microstructure Graphite distribution is designated by a capital letter A through E. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards. PO Box C Users of this standard are expressly advised that determination of the validity of any such patent rights. Your comments will receive careful consideration at a meeting of the responsible technical committee.

Permission rights to photocopy the standard may also be secured from the ASTM website www. PA West Conshohocken.

Titres liés

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Flag for inappropriate content. Related titles. Dictionary of Materials and Testing, Second Edition. Jump to Page.

Search inside document.Isachi Pavel. A 7. Related titles.

Proceed to Checkout Continue Shopping. Where a mixture of one or more sizes occurs in the same sample. 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. Please first log in with a verified email before subscribing to alerts.