ASTM E8 E8M PDF

Specifically, the test determines the yield strength, yield point elongation, tensile strength, elongation and reduction of area. The information gathered by tensile tests are crucial in the comparison of materials, alloy creation and designing processes. Furthermore, the standardization of testing methods are widely accepted and used for testing of commercial materials. Equipment Required Tensile Tester — Capacity of Tensile Tester depends on the size and the ultimate tensile strength of the specimen. Speak to one of our sales engineers for possible accommodations. Frank Bacon Machinery has over tensile testers in stock in various makes, models and capacities Extensometer — Extensometer should have gage lengths equal to or shorter than the length of the reduced section of the specimen.

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Specifically, the test determines the yield strength, yield point elongation, tensile strength, elongation and reduction of area. The information gathered by tensile tests are crucial in the comparison of materials, alloy creation and designing processes.

Furthermore, the standardization of testing methods are widely accepted and used for testing of commercial materials. Equipment Required Tensile Tester — Capacity of Tensile Tester depends on the size and the ultimate tensile strength of the specimen.

Speak to one of our sales engineers for possible accommodations. Frank Bacon Machinery has over tensile testers in stock in various makes, models and capacities Extensometer — Extensometer should have gage lengths equal to or shorter than the length of the reduced section of the specimen. It should also have enough travel to accommodate the elongation of the sample.

Grips — Wedge Grips are most commonly used however various types of grips may be used depending on the sample type. Specimens can be either round, flat, wire, pipe or tube. This can be performed using a Tensilkut, Mill, Lathe or Die.

Select the correct guage length based on the specimen size you will be testing. This will give you the initial length for calculating elongation. This will allow you or the software to calculate the cross section area required to calculate the stress value. Flat or Vee wedge grips, threaded holder or shouldered button head holders are the most common ways of holding the specimens.

Place the extensometer on the specimen. The extensometer will allow the software to automatically calculate the. Once the specimen has yielded, stop the machine and remove the extensometer. With a fully computer controlled tensile tester the software will stop the machine and tell the operator to remove the extensometer. Once the extensometer has been removed, continue the test until the specimen fractures. The test can be resumed with a faster rate of load to minimize the test time.

This will be used for the calculation of percent elongation. A stress vs. If you are looking to outsource your testing please contact jstencel4 tensiletestlab. Product categories.

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ASTM E8 – Tensile Testing of Metals

You are on page 1of 30 Search inside document This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade TBT Committee. A number in parentheses indicates the year of last reapproval. This standard has been approved for use by agencies of the U. Department of Defense. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use.

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