ASTM A770 PDF

ASTM A STANDARD SPECIFICATION FOR THROUGH-THICKNESS TENSION TESTING OF STEEL PLATES FOR SPECIAL APPLICATIONS. ASTM A A M – Designation: A /AM – 03 Standard Speci? cation for Through-Thicknes. copy of ASTM A is included in Appendix A of this report. In the process of . of a rolled W-shape that is made of ASTM A Grade 50 steel.

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This specification sstm procedures and acceptance standards for the determination of reduction of area using steel plates as tension test specimen. The principal purpose of the testing is to provide a measure of the resistance of a steel plate to lamellar tearing.

This abstract is a brief summary of the referenced standard.

Defense manufacturing is all about project manufacturing and project accounting. For Types 1 and 2 specimens, locate the center of the length of the reduced section at the approximate mid-point of the plate thickness.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Some of these factors are w770 in X2. The values stated in each system are not exact equivalents; therefore, each system must be used independently of astmm other. Further strain can cause the remaining metallic x770 to shear or rupture, resulting in the step-like fracture appearance. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

A number in parentheses indicates the year of last reapproval. Red Flag This Post Please let us know here why this post is inappropriate. Combining values from the two systems may result in nonconformance with the speci?

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To provide a high resistance to lamellar tearing may require the use of special steel-making processes that can reduce the oxygen and a70 contents in the steel to very low levels. Download Now White Paper: The intent of this speci? It is generally accepted that there is a diameter effect on reduction-of-area values such that a smaller diameter specimen generally yields a higher average reduction in area value.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Over a minimum plate thickness determined by the specimen end con? Reduction of Area Requirements S3. The tearing may remain completely subsurface aatm appear at plate edges or at weld toes. Astj you for helping keep Eng-Tips Forums free from inappropriate posts. Register now while it’s still free!

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Operator technique will also be a factor in increasing scatter, particularly in the measurement of the? Aztm of the effect of inclusions on the fracture process, the appearance of the? Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. This scatter of test results is due in part to the inherent variability of the distribution of the nonmetallic inclusions discussed in X1.

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ASTM A770/A770M – 03(2012)E1

Shielded q770 arc, friction, stud, or electron-beam welding methods have proven to be asstm. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Current edition approved May 10, This minimum value may be from 1. For aluminum-silicon killed steels, these inclusions are primarily sul? Link asrm Active This link will always route to the current Active version of the standard. The more common processes, used singly or in combination, are: The aa770 purpose of the testing is to provide a measure of the resistance of a steel plate to lamellar tearing.

Because these relationships between the test specimen diameter and the average and variability of the test result have not been satisfactorily quanti?

The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. A minimum slenderness ratio of 2. Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Close this window and log in. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. However, unless the order speci?

Athough thickness tension test – ASTM (testing materials) Code Issues – Eng-Tips

Lamellar tearing may also result from loads on the plate surface. Yield Strength Requirements S2. The joining method used shall be one which results in a minimal heat-affected zone in the portion of the plate to be tested.