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Standard Specification for Carbon and Alloy Steel Bars for Springs
This specification covers **hot-wrought steel bars** for the manufacture of general purpose springs such as coil, torsion, and leaf.
The steel shall be melt processed by using *open-hearth, basic-oxygen, or electric furnace*.
The materials shall undergo heat analysis and shall conform to the required **chemical compositions and hardenability**.
The steel specimens shall conform to the required values of **rounded corner radii** and **cross section tolerances** for round-edge flat bars.
1.1 This specification covers hot-wrought steel bars to be used for the manufacture of general-purpose springs such as coil, torsion, and leaf.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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