ASTM A – Designation: A /A M – 01 An American National Standard Standard Practice f. This standard is issued under the constant designation a /a m; the number right away following the designation suggests the yr. according to the guidelines of ASTM E, “Standard Guide for ASTM A, “Standard Practice for Steel Casting, Austenitic Alloy.
|Published (Last):||5 May 2004|
|PDF File Size:||12.84 Mb|
|ePub File Size:||18.77 Mb|
|Price:||Free* [*Free Regsitration Required]|
Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof
Combining values from the two systems may result in nonconformance with the practice. Link to Active This link will always route to the current Active version of the standard. This may be formed upon solidication from the molten metal delta ferrite or by transformation from austenite or sigma phase on cooling in the solid state alpha ferrite.
Click Here to join Eng-Tips and talk with other members!
ASTM D e1. Current edition approved Mar. Are you an Engineering professional? If the composition ratio is 1. Because of errors in chemical analyses, the calculated ratio may differ from the actual composition ratio and, as a result, the ferrite content may be higher or lower than indicated by the central X1.
All measurements shall be made on material after the solution heat treatment required by the applicable product specication, or, if any subsequent solution heat treatment is employed, then after the nal solution heat treatment.
Estimation of Ferrite Content 7.
The values stated in each system are not asfm equivalents; therefore, each system must be used independently of the other. Signicance and Use 4. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. The quantity of ferrite in the structure is fundamentally a function of the chemical composition of the alloy and its thermal history. Therefore, the precision of the ferrite content estimated from chemical composition depends on the accuracy of the chemical analysis procedure.
NOTE 1—There may be a awtm decrease in the ferrite content of weld deposits after solution heat treatment in comparison with the as-deposited value.
These may so alter the magnetic response of the alloy that the indicated ferrite content is quite different from that of the same chemical composition that has undergone different thermal treatment.
Register now while it’s still free! Close this window and log in. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
If a comparison is made of ferrite content estimated from a product sstm performed by the purchaser, with that qstm from the heat analysis see 7.
ASTM , Ferrite content (CF8M) – Metal and Metallurgy engineering – Eng-Tips
Combining values from the atm systems may result in nonconformance with the practice. Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.
The estimates of ferrite content from magnetic measurements S1 or from point counts S2or both, if ordered by the purchaser, also shall be reported.
Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. The Eng-Tips staff will check this out and take appropriate action. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. These may so alter the magnetic response of the alloy that the indicated ferrite content is quite different from that of the same chemical composition that has undergone different thermal treatment.
The ferrite content may be limited by purchase order requirements or by the design construction codes governing the equipment in which the castings will be used.
ASTM International – Standard References for ASTM A / AM – 14
Promoting, selling, recruiting, coursework and thesis posting is forbidden. Red Flag This Post Please let us know here why this post is inappropriate.
Historical Version s – view previous versions of standard. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.
The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. If a tension test is not required by the applicable product specication, measurements may be made on a specimen cut from a keel block of a design in Fig.
Therefore, the precision of the ferrite content estimated from chemical composition depends on the accuracy of the chemical analysis procedure.