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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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. The most widely accepted method of measuring the material ductility factor of aztm to lamellar tearing is the reduction of area of a round tension test specimen oriented perpendicular to the rolled surface of a plate. Last previous edition approved in as A — 86 A Test Methods and De? Tensile Strength Requirements S1.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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Over a minimum plate thickness determined by the specimen end con? The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. asrm

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Because of the effect of inclusions on the fracture process, the appearance of the? Two tests shall be required from each quenchedand-tempered plate. For plates astj 6 in. Your comments qstm receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Combining values from the two systems may result in nonconformance with the speci? The more common processes, used singly or in combination, are: However, unless the order speci? High restraint increases the possibility of lamellar tearing. 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.

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

The tearing may remain completely subsurface or appear at plate edges or at weld toes. This minimum value may be from 1.

Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Download Now Defense manufacturing is all about project manufacturing and project accounting. Click Here to join Eng-Tips and talk with other members! For Type 3 specimens, locate the weld fusion line of one plate surface within 1? However, lamellar tearing is not solely con?

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However, A is not clear in scope.

ASTM A A M_百度文库

It is generally caused by strain induced in the thickness direction resulting from shrinkage of the weld deposit and by the restraint imposed by the components that comprise the weldment. A minimum slenderness ratio of 2 was selected for the standard Type 2 specimen asmt allow a 0.

Below this minimum value, the x770 at the failure point in the reduced section is restrained by the larger cross section away from the reduced section.

Shielded metal arc, friction, stud, or electron-beam welding methods have proven to be suitable.

ASTM A770/A770M – 03(2012)E1

For plates over 41? The principal purpose of the testing is to provide a measure of the resistance of a steel plate to lamellar tearing.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Historical Version s – view previous versions of standard.

Join your peers on the Internet’s largest technical engineering professional community. Some of these factors are discussed in X2. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.

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