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. A Alloy Designations asrm Speci? Grade B7 Studs bolts and Grade B16 Studs bolts fall in this category and are used for high temperature, high-pressure environments like petroleum industry. A number in parentheses indicates the year of last reapproval. Immediately after removal from the solution, the specimen shall be wiped free of excess mercury and examined for cracks. Grossman the Grossman method.
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Document Center Inc. Note 1—For tubes of sizes greater than 4 in. For pipe and tubes over 4 in. This 4-in. The pipe or tube so tested shall develop no cracks or flaws visible to the unaided eye as a result of this test. In making the flattening test, the elements shall be slowly flattened by one stroke of the press. Note 2—The term "unaided eye," as used herein, permits the use of corrective lenses necessary to obtain normal vision. The values given in parentheses are mathematical conversions to SI units that are provided for information purposes only and are not considered standard.
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. Significance and Use When properly performed and interpreted, the expansion pin test will provide information with regard to the capacity of a tube for expansion and to reveal surface defects.
Expansion pin test may provide data for research and development, engineering design, quality control, and acceptance or rejections in specifications.
ASTM B153 PDF