22 Oct ASTM A – Designation: A /A M – 01 An American National Standard Standard Practice f. 7 Apr This standard is issued under the constant designation a /a m; the number right away following the designation suggests the yr. Find the most up-to-date version of ASTM A at Engineering
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ASTM International – Standard References for ASTM A / AM – 14
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The Eng-Tips staff will check this out and take appropriate action. Students Click Here Join Us! Join your peers on the Internet’s largest technical engineering professional community. Therefore, the precision of the ferrite content estimated from chemical composition depends on the accuracy of the chemical analysis procedure. Few production environments have the luxury of ordering new equipment to replace existing machines on their shop floor.
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.
Thanks for any help RE: 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. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Sources of error include the following:.
Click Here to join Eng-Tips and talk with other members! Also, because the magnets or probes of the various measuring instruments are small, different degrees of surface roughness or surface curvature will vary the magnetic linkage with the material being measured.
Regarding 2 and 3you need to know the niobium and nitrogen content of your steel before you carry out the calculation. Ashm such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. The Architecture, Engineering and Construction AEC industry is constantly looking atm process improvements to better manage potential project delays and costs. The quantity of ferrite in the structure is fundamentally a function of the chemical composition of the alloy and its thermal history.
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Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Sources of error include the following: Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means. Determination of the ferrite content by any of the procedures described in the following practice is subject to varying degrees of imprecision which must be recognized in setting realistic limits on the range of ferrite content specified. Answer 3 Yes, see answer 2. Download Now The Architecture, Engineering and Construction AEC industry is constantly looking for process improvements to better manage potential project delays and costs.
Promoting, selling, recruiting, coursework and thesis posting is forbidden. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Link to Active This link will always route to the current Active version of the standard. Combining values from the two systems may result in nonconformance with the practice.
Thanks for ashm help. Historical Version s – view previous versions of standard. Because a8800 segregation, the chemical composition, and, therefore, the ferrite content, may differ from point to point on a 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. Resources Few production environments have the luxury of ordering new equipment to replace existing machines on their shop floor.
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