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ASTM A638/A638M-23
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
NORMA vydaná dňa 1.5.2023
Informácie o norme:
Označenie normy: ASTM A638/A638M-23
Dátum vydania normy: 1.5.2023
Kód tovaru: NS-1142725
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM A638/A638M-23 :
This specification covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical properties of these alloys are developed by suitable solution treating and precipitation hardening treatments. Two grades of iron base alloy are covered; Grade 660 and Grade 662 (bars and forgings). The material shall meet the requirements as to stress rupture properties specified. The material shall conform to the chemical, mechanical, and metallurgical properties requirements specified.
Keywords:
precipitation hardening superalloy steel, superalloy steel bars, superalloy steel billets, superalloy steel forgings, temperature service applications (high),, ICS Number Code 77.140.60 (Steel bars and rods),77.140.85 (Iron and steel forgings)
Doplňujúce informácie
| 1. Scope | ||||||||
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1.1?This specification1.2?Two grades of iron base alloy are covered. Selection will depend upon design, service conditions, mechanical properties, and elevated temperature characteristics. 1.3?The values stated in either SI units or inch-pound units are to be regarded separately as standard. SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.4?Unless the order specifies an M designation, the material shall be furnished to inch-pound units. 1.5?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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