1. Astm E8

The capacity to satisfactorily machine such light gauges as.002″ thick allows testing of many materials for which specimen preparation would otherwise be significantly more difficult. The 1955 Tensilkut catalog included a drawing of the only tensile bar we made at the time, along with an actual specimen! I don’t imagine the founder of Tensilkut ever imagined a time when we could not only send information to customers nearly instantly, but also a time when we’d be able to make videos available for people to see whenever they wished. Despite sea changes in communication, the need for his original machine remains very real – and at least one of the machines made in his first couple of years remains in service today.

Astm E8

ASTM E8 Tension Testing of Metallic Materials. Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

Highway and Transportation Officials Standard AASHTO No.: T68 An American National Standard Standard Test Methods for Tension Testing of Metallic Materials1 This standard is issued under the fixed designation E8/E8M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense. Scope* 1.1 These test methods cover the tension testing of metallic materials in any form at room temperature, specifically, the methods of determination of yield strength, yield point elongation, tensile strength, elongation, and reduction of area.

In addition, the test rate is to remain constant through yield but can then be increased when determining ultimate tensile strength and elongation at break. See the ASTM E8 specification for more details. • Run the test until specimen failure or fracture. Remove the broken sample from the machine and fit the fractured ends together. Measure the distance between the gage marks to the nearest 0.05 millimeters.

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ASTM E 8 describes tension testing methods to determine yield strength, yield point elongation, tensile strength, elongation and reduction of area of metal products. It applies to metallic materials in any form, including: sheet, plate, wire, rod, bar, pipe and tube. The preferred coupon for conventionally machined parts is the ASTM E8 cylindrical-type and shall have a diameter less than the minimum section of the part or 0.500. ASTM E8 / E8M-16a, Standard Test Methods for Tension Testing of Metallic Materials, ASTM International, West Conshohocken, PA, 2016, www.astm.org.

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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. * A Summary of Changes section appears at the end of this standard. Customers who purchased ASTM E8/E8M also purchased • ASTM E339: STANDARD TEST METHOD FOR DISCRIMINATION OF DIFFERENCES IN THE PRODUCTION OF ALCOHOLIC BEVERAGES BY THE DUO- TRIO METHOD • ASTM A370 REV A: Standard Test Methods and Definitions for Mechanical Testing of Steel Products • ASTM E384: Standard Test Method for Knoop and Vickers Hardness of Materials • ASTM B117: Standard Practice for Operating Salt Spray (Fog) Apparatus See More Documents Contact us Subject For any question about a product, an order If a technical problem occurs on this website E-mail address Message.

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These test methods cover the tension testing of metallic materials in any form at room temperature, specifically, the methods of determination of yield strength, yield point elongation, tensile strength, elongation, and reduction of area. The gage lengths for most round specimens are required to be 4D for E8 and 5D for E8M. The gage length is the most significant difference between E8 and E8M Test Specimens Test specimens made from powder metallurgy (P/M) materials are exempt from this requirement by industry-wide agreement to keep the pressing of the material to a specific projected area and density. Exceptions to the provisions of these test methods may need to be made in individual specifications or test methods for a particular material.

For examples, see Test Methods and Definitions A370 and Test Methods B557, and B557M. Room temperature shall be considered to be 10 to 38°C [50 to 100°F] unless otherwise specified. The values stated in SI units are to be regarded as separate from inch/pound units. 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. This standard does not purport to address all of the safety concerns, if any, associated with its use.