ASTM E2248 V-Notch Impact Test Method

astm e2248 12 standard test method for impact testing of miniaturized charpy v notch specimens

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Things about ASTM-E2248-12: Standard test method for impact testing of miniaturized Charpy V-notch specimens.

1.1 This test method describes notched-bar impact testing of metallic materials using Miniaturized Charpy V-Notch (MCVN) specimens and test apparatus. It provides (a) a description of the apparatus, (b) requirements for inspection and calibration, (c) safety precautions, (d) sampling, (e) dimensions and preparation of specimens, (f) testing procedures, and (g) precision and bias.

1.2 This standard concerns Miniaturized Charpy V-Notch specimens, for which all linear dimensions, including length and notch depth, are reduced with respect to a type A standard impact test specimen in accordance with Test Methods E23. These are not the same as sub-size specimens, described in Annex A3 of Test Methods E23, for which length, notch angle, and notch depth are the same as for the standard type A Charpy specimen. See also 1.5 below.

1.3 Comparison of the MCVN data with conventional Charpy V-Notch (CVN) data or application of the MCVN data, or both, to the evaluation of ferritic material behavior, is the responsibility of the user of this test method and is not explicitly covered by this test method.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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