American Society for Testing and Materials (ASTM). Current edition approved Oct. 1, 2009. Published November 2009. 3 р. This specification covers double-normalized and tempered 9 % nickel steel plates intended particularly for welded pressure vessels for cryogenic service.
Plates produced under this specification are subject to impact testing at −320°F [−195°C] or at such other temperatures as are agreed upon.
The maximum thickness of plates is limited only by the capacity of the material to meet the specific mechanical property requirements; however, current mill