ASTM A227/A227M: Standard Specification for Steel Wire, Cold-Drawn for Mechanical Springs
SDO: ASTM: ASTM International
DOD Adopted ANSI Approved Approved
This specification covers two classes of round cold-drawn steel spring wire having properties and quality for the manufacture of mechanical springs that are not subject to high stress or requiring high fatigue properties and wire forms.
The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
*A Summary of Changes section appears at the end of this standard.
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