Can ASTM 516 grade 70 plate be used for cryogenic applications?

ASTM A516 Grade 70 (A516 gr70) plate is not typically recommended for use in cryogenic applications. While it possesses good mechanical properties and impact resistance at low temperatures, its suitability for cryogenic service may be limited.

Cryogenic applications involve extremely low temperatures below -150°C (-238°F), such as in liquefied natural gas (LNG) storage and handling. At such low temperatures, the toughness and ductility of materials become critical factors. ASTM 516 grade 70 plate, although possessing good notch toughness, may experience reduced ductility and increased brittleness at cryogenic temperatures.

For cryogenic applications, materials with specific low-temperature properties, such as high ductility, resistance to brittle fracture, and excellent toughness, are usually preferred. Steels like ASTM A350 LF2 or austenitic stainless steels, such as 304L or 316L, are commonly used in cryogenic applications due to their superior low-temperature characteristics.

It is essential to consult the appropriate material specifications, industry standards, and engineering guidelines when selecting materials for cryogenic applications to ensure that the chosen material meets the specific requirements and safety considerations of the intended application.