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ASTM A914/A914M

Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements

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Organization: ASTM
Publication Date: 15 December 1992
Status: inactive
Page Count: 27
ICS Code (Steel bars and rods): 77.140.60
scope:

This specification covers hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix letter "RH" added to the conventional grade number.

In general, steels with restricted hardenability (RH steels) will exhibit a hardness range not greater than 5 HRC at the initial position on the end-quench hardenability bar and not greater than 65 % of the hardness range for standard H-band steels (Specification A 304) in the inflection region. Generally the restricted hardenability band follows the middle of the corresponding standard H-band. An example of the RH band compared with the H band is given for Grade 4140 in Fig. 1.

This specification is expressed in both inch-pound units and SI units. However, the material will be supplied to inch-pound units unless the purchase order specifies the "M" specification designation.

Document History

November 1, 2019
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
This specification covers hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix...
December 1, 2016
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
This specification covers hot-worked alloy and carbonboron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix letter...
December 15, 1992
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
1. Scope 1.1 This specification covers hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the...
December 15, 1992
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
This specification covers hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix...
ASTM A914/A914M
December 15, 1992
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
This specification covers hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix...
December 15, 1992
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
This specification covers hot-worked alloy and carbonboron steels designed to attain restricted depth of hardening in the end-quench test. These steel compositions are identified by the suffix letter...

References

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