ASTM A800 PDF
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
Click Here to join Eng-Tips and talk with other members! Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means. Red Flag This Post Please let us know here why this post is inappropriate. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
Thanks for any help. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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. Register now while it’s still free! Such issues are the result of project complexity, size, uniqueness and regulation, as well as the need for virtual team collaboration.
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Thanks for any help RE: It’s easy to join and it’s free. Sources of error include the following: Close this window and log in. Join your peers on the Internet’s largest technical engineering professional community. Answer 3 Yes, see answer 2. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.
Historical Version s – view previous versions of standard. The quantity of ferrite in the structure is fundamentally a function of the chemical composition of the alloy and its thermal history. Determination of the ferrite content by any of the procedures described in the following a80 is subject to varying degrees of imprecision which must be recognized in setting realistic limits on the range of ferrite content specified.
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. 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.
Because of segregation, the chemical composition, and, therefore, the ferrite content, may differ from point to point on a casting.
Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof
Sources of error include the following:. Therefore, the precision of the ferrite content estimated from chemical composition depends on the accuracy of the chemical analysis procedure.
Promoting, selling, recruiting, coursework and thesis posting is forbidden. Are you an Engineering professional? Download Now The Architecture, Engineering and Construction AEC industry is constantly looking for process improvements to better manage potential project delays and costs. Few production environments have the atsm of ordering new equipment to replace existing machines on their shop floor.
Students Click Here Join Us! Combining values from the two systems may result in nonconformance with the practice. By joining you are opting in to receive e-mail. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Also, because the magnets or probes of the various measuring astj are small, different degrees of surface roughness or surface curvature q800 vary the magnetic linkage with the material being measured.
Resources Few production environments have the luxury of ordering new equipment to replace existing machines on asfm shop floor. Regarding 2 and 3you need to know the niobium and nitrogen content of your steel before you carry out the calculation. The Architecture, Engineering and Construction AEC industry is constantly looking for process improvements to better manage potential project delays and costs.