Cryogenic vessels — Toughness requirements for materials at cryogenic temperature — Part 2: Temperatures between -80 degrees C and -20 degrees C

ISO 21028-2:2004 specifies the toughness requirements of metallic materials for use at temperatures between -20 °C and -80 °C to ensure their suitability for cryogenic vessels. It is applicable to fine-grain and low-alloyed steels with specified yield strength less than or equal to 460 N/mm², aluminium and aluminium alloys, copper and copper alloys and austenitic stainless steels.