Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
NORMA vydaná dňa 15.8.2024
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Označenie normy: ASTM A765/A765M-24
Dátum vydania normy: 15.8.2024
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar parts. The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified temperature. Heat treatment shall consist of one of the following treatment options: normalize and temper; double normalize, wherein the second austenitizing temperature is at the same or lower temperature than the first, followed by tempering; quench and temper, with the option of adding a preliminary normalize before austenitizing for quenching in a suitable liquid medium. The forgings shall be subjected to tension and Charpy V-notch impact tests.
Keywords:
alloy steel forgings, carbon steel forgings, heat-treated, impact tested, intercritical heat treatment, pressure vessel, weldable,, ICS Number Code 77.140.30 (Steels for pressure purposes)