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ASTM A914/A914M-92(2005)
Standard Specification for Steel Bars Subject to Restricted End-Quench Hardenability Requirements
Automaticky preložený názov:
Štandardné špecifikácie pre oceľových tyčí je viazaný na End - Quench tvrditelnost Požiadavky
NORMA vydaná dňa 1.3.2005
Informácie o norme:
Označenie normy: ASTM A914/A914M-92(2005)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.3.2005
Kód tovaru: NS-4789
Počet strán: 27
Približná hmotnosť: 81 g (0.18 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM A914/A914M-92(2005) :
Keywords:
bars, restricted hardenability, ICS Number Code 77.140.60 (Steel bars and rods)
Doplňujúce informácie
| 1. Scope | ||||||||||||||
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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 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 . 1.3 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. |
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| 2. Referenced Documents | ||||||||||||||
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