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ASTM A739-90a(2022)
Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both (Includes all amendments and changes 3/7/2022).
NORMA vydaná dňa 1.3.2022
Informácie o norme:
Označenie normy: ASTM A739-90a(2022)
Dátum vydania normy: 1.3.2022
Kód tovaru: NS-1050974
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM A739-90a(2022) :
This specification covers hot-wrought, ferritic alloy steel bars for elevated temperature or pressure-containing parts suitable for fusion welding or both. The bars are furnished in two grades: Grade B 11 and Grade B 22. The steel shall be made by on or more of the following primary processes: open-hearth, basic-oxygen, or electric furnace. The bars shall be normalized and tempered. The heat analysis shall conform to the limits for chemical composition specified. The bars as represented by the test specimen shall conform to the tensile requirements specified.
Keywords:
alloy steel bars, high-temperature applications, hot-wrought steel bars, pressure-containing parts, steel bars, temperature service application—high,, ICS Number Code 77.140.30 (Steels for pressure purposes)
Doplňujúce informácie
| 1. Scope | ||||
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1.1?This specification1.2?The bars are furnished in the following grades:
1.3?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||
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