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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Students Click Here Join Us! The more common processes, used singly or in combination, are: Historical Version s – view previous versions of standard.

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

By joining you are opting in to receive e-mail. Last previous edition approved in as A — 86 A superscript epsilon e indicates an editorial change since the last revision or reapproval.

Some of these factors are discussed in X2.

However, A is not clear in scope. The number of tests required will depend upon the thickness of the plate being tested and the reduced section length selected. A number ast parentheses indicates the year of last reapproval.

On the other hand, a reduction in the magnitude and concentration of these inclusions to a low level tends s770 preclude any easy fracture path along the low ductility inclusions and the steel exhibits improved ductility in a throughthickness direction.

Close this window and log in. In all cases, the minimum length of the reduced section must be as speci?

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This standard has been approved for use by agencies of the Department of Ashm. Click Here to join Eng-Tips and talk with other members!

ASTM A770/A770M – 03(2012)E1

Join your peers on the Internet’s largest technical engineering professional community. 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. Because these relationships between the test specimen diameter and the average and variability of the test result have astmm been satisfactorily quanti?

It is also accepted that smaller diameter test specimens will tend to give greater variability to the resulting reduction in area values. To improve the through-thickness ductility and thus the resistance of the steel to lamellar tearing, it is necessary to reduce the level of the nonmetallic inclusions.

This minimum value may be from 1. Number of Tests S4. 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. The joining method used w770 be one which results in a minimal heat-affected zone in the portion of the plate to be tested.

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. Resources Digital A7700 may be defined in a number of different ways by analysts or enterprise software vendors.

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Strains in the through-thickness direction can cause individual inclusions to fractures or decohere from the surrounding steel matrix, thus initiating a void. Register now while it’s still free! Download Now Defense manufacturing is all about project manufacturing and project accounting.

Lamellar tearing may also result from loads on the plate surface. The intent of this speci? Are you an Engineering professional? The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

It is generally accepted that there is a diameter effect on reduction-of-area values such that aatm smaller diameter specimen generally yields a higher average reduction in area value.

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Red Flag This Post Please let us know here why this post is inappropriate. Within the text, the SI units are shown in brackets.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. A minimum slenderness ratio of 2. For plates over 41? Several types of test specimen shall have specified values of plate thickness, diameter, minimum radius, and length of reduced section.