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ASTM B598-98(2004)

Current Reaffirmation

Standard Practice for Determining Offset Yield Strength in Tension for Copper Alloys

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1.1 This practice covers the determination of the yield strength (0.01%, 0.02%, and 0.05% offset), at room temperature. It is intended for copper alloys in tempers commonly used for spring applications, and materials thicker than 0.010 in. (0.25 mm).

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. 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.


This practice may be used for approximating a limiting design stress at room temperature and, in some cases, for approximating the range of elastic behavior. Elastic limit, or the greatest stress that a material is capable of sustaining without any permanent strain remaining upon complete release of the stress, is a more technically accurate design parameter; however, the elastic limit is extremely difficult to measure in routine testing. Caution should be used in applying such values to predict the behavior of flat or wire springs in bending, torsion or other stress modes, or at temperatures other than that at which the determination is made.

SDO ASTM: ASTM International
Document Number B598
Publication Date May 1, 2004
Language en - English
Page Count 2
Revision Level 98(2004)
Supercedes
Committee B05.06
Publish Date Document Id Type View
Sept. 1, 2014 B0598-14A Revision
April 1, 2014 B0598-14 Revision
April 1, 2009 B0598-09 Revision
Oct. 10, 1998 B0598-98 Revision
May 1, 2004 B0598-98R04 Reaffirmation