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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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B950 Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E8/E8M Test Methods for Tension Testing of Metallic Materials
E74 Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines
E83 Practice for Verification and Classification of Extensometer Systems
ICS Number Code 77.120.30 (Copper and copper alloys)
UNSPSC Code 31161900(Springs)