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ASTM A125 - 96(2007) Standard Specification for Steel Springs, Helical, Heat-Treated

ASTM A125
Abstract

This specification covers the Standard for hot-coiled, heat-treated helical compression springs with tapered, closed, squared and ground ends made of hot-wrought round steel bars. Cross sections for hot-wrought round, square, and round-cornered square bars of steel of the bar diameter shall be taken into consideration when designing and calculating the solid height, spring rate, solid stress, and solid capacity. The spring shall undergo quenching and tempering to have sufficiently high hardness and withstand the stresses developed in testing. Springs with specific indentation diameter shall not exceed the specified Brinell hardness numbers. The spring shall meet the metallurgical requirement, end construction, physical requirements such as measurements, solid height, free height, loaded height, permanent set, uniformity of pitch, outside diameter and calculations of solid capacity and uncorrected solid stress.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the Standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

 

1.1 This specification covers hot-coiled, heat-treated helical compression springs with tapered, closed, squared and ground ends made of hot-wrought round steel bars 3/8 in. (9.5 mm) and larger in diameter.

1.2 This specification also serves to inform the user of practical manufacturing limits, mechanical tests, and inspection requirements applicable to the type of spring described in 1.1.

1.3 Supplementary Requirements S1 to S8 inclusive of an optional nature are provided. They shall apply only when specified by the purchaser. Details of these supplementary requirements shall be agreed upon by the manufacturer and purchaser.

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

 

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the Standard.
ASTM Standards

A29/A29M Specification for steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
A689 Specification for Carbon and Alloy Steel Bars for Springs
E10 Test Method for Brinell Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E709 Guide for Magnetic Particle Testing


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Index Terms

 

steel springs;

 

 

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ICS Code

 

ICS Number Code 21.160 (Springs)

 

 

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DOI: 10.1520/A0125-96R07

ASTM International is a member of CrossRef.

 

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ASTM A125 (steel Standards)
Citing ASTM Standards

 




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