1. Rationale
An inquiry concerning the heat treated thickness for forgings depending on the selected grade as listed in 6.1.6.2 has indicated that the listed thickness values might be taken to be mandatory maximum values, and that the term generally used in 6.1.6.2 is inappropriate. The proposed ballot action is to move the content of 6.1.6.2 to a non mandatory appendix to the standard because the stated limits in 6.1.6.1 could be inaccurate based on published data, particularly if some of the heat treatment procedures included in the standard are used.
Keywords
chromium-molybdenum steel; nickel-chromium-molybdenum alloy steels; pressure vessel service; quenched and tempered steels; steel forgingsalloy; steel forgings carbon; vacuum-treated steels; Vacuum treated steel forgings--specifications; Alloy steel forgings--specifications; Carbon steel forgings--specifications; Chromium-molybdenum steel--specifications; Nickel-chromium-molybdenum alloys--specifications; Nuclear applications/materials--steel (specifications); Pressure vessel steel forgings--specifications; Quenched and tempered steels (specifications) ;
Citing ASTM Standards
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