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ASTM A229/A229M-12

Historical Revision

Standard Specification for Steel Wire, Quenched and Tempered for Mechanical Springs

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1.1 This specification covers two classes of round and shaped quenched and tempered steel spring wire intended especially for the manufacture of mechanical springs and wire forms.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems can result in non-conformance with the standard.


This specification covers two classes of oil-tempered steel spring wire intended especially for the manufacture of mechanical springs and wire forms. The steel may be made by any commercially accepted steel-making process and shall either be ingot cast or strand cast. The finished wire shall be free of detrimental pipe and undue segregation. The wire shall be oil quenched and tempered to produce the desired mechanical properties such as tensile strength. Cast, heat, and product analysis shall conform to the chemical composition requirements prescribed for carbon, manganese, phosphorus, sulfur, and silicon. Tension, wrap, and surface tests shall be performed. The surface of the wire as-received shall be free of rust, excessive scale die marks, pits, and scratches detrimental to the end application. Other metallurgical requirements such as microstructure and decarburization are detailed.


SDO ASTM: ASTM International
Document Number A229
Publication Date April 15, 2012
Language en - English
Page Count 4
Revision Level 12
Supercedes
Committee A01.03
Publish Date Document Id Type View
Aug. 15, 2024 A0229_A0229M-24 Revision
Sept. 1, 2018 A0229_A0229M-18 Revision
Sept. 1, 2017 A0229_A0229M-17 Revision
April 15, 2012 A0229_A0229M-12 Revision
March 10, 1999 A0229_A0229M-99 Revision
May 1, 2005 A0229_A0229M-99R05 Reaffirmation