This specification covers steel plates for use in welded pressure vessels that are to operate at low temperatures. The classes of plates covered by this specification shall conform to all requirements of the ASTM specifications for the particular grade referred to in Table I in addition to the requirements of this specification (See Note 2 in Section 2). It is desired that the steel supplied under this specification be made to fine grain melting practice.
NOTE 1
-It should be recognized that fabricating processes, such as forming and welding, may affect the impact properties of steel so that the impact properties of the plate in a fabricated pressure vessel may differ from the impact properties of the plate as tested.
ASTM A300-58 history
1968ASTM A300-68 Standard Specification for Notch Toughness Requirements for Normalized Steel Plates for Pressure Vessels
1958ASTM A300-58 Standard Specification for Steel Plates For Pressure Vessels For Service At Low Temperatures