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4、 If you have any questions, or need technical assistance please contact IHS Support Record# Codes Affected Subject Posted Date 14-390 B89.1.2M B89.1.2M-1991 Errata 02/21/14 ERRATAtoASME B89.1.2M-1991Calibration of Gage Blocks by Contact ComparisonMethods (Through 20 in. and 500 mm)On page 21, in Tab
5、le B2.1, the last column head has been corrected by errata. The completetable appears below.TABLE B2.1 COEFFICIENTS OF LINEAR THERMAL EXPANSIONGage Block Microinches/inch F Microinches/inch CMaterial (Micrometers/meter F) (Micrometers/meter C)Chromium carbide 4.7+0.20.78.5+0.31.3Steel 6.4+0.20.411.5+0.40.8Tungsten carbide 3.6 6.5THE AMERICAN SOCIETY OF MECHANICAL ENGINEERSTwo Park Avenue, New York, NY 10016-5990January 2014
