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Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
STANDARD published on 1.4.2011
Designation standards: ASTM A914/A914M-92(2011)
Note: WITHDRAWN
Publication date standards: 1.4.2011
SKU: NS-4790
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
bars, restricted hardenability, Alloy steel bars--specifications, Carbon-boron steel, Carbon steel bars/shapes--specifications, End-quench hardness, Hardenability (steel)--specifications, ICS Number Code 77.140.60 (Steel bars and rods)
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 suffix letter “RH” added to the conventional grade number. 1.2 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 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. 1.2.1 The 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. |
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1.4.2010
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1.3.2008
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1.3.2014
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