ASTM A 914/A914M : 2016 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
English
01-12-2016
04-05-2020
CONTAINED IN VOL. 01.05, 2018 Defines hot-worked alloy and carbon-boron steels designed to attain restricted depth of hardening in the end-quench test.
| Committee |
A 01
|
| DocumentType |
Redline
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| Pages |
28
|
| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy |
1.1This 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.
1.2In 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 A304) 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.
1.2.1The 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.
1.3This 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.
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| SAE J1268_201005 | Hardenability Bands for Carbon and Alloy H Steels |
| SAE J406_200903 | Methods of Determining Hardenability of Steels |
| SAE J1868_201002 | Restricted Hardenability Bands for Selected Alloy Steels |
| ASTM A 304 : 2016 : REDLINE | Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements |
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