The grades specified in the GB712-2011 ship and marine engineering structural steel standard are: Grade A, B, D, E, AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, FH40, AH420, A514 Gr Q alloy steel plate, DH420, EH420, FH420, AH460, DH460, EH460, FH460, AH500, DH500, EH500, FH500, AH550, DH550, EH550, FH550, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690.
ASTM A333 Grade 6 pipe A514 Gr Q alloy steel plate for low temperature services at above -45℃. Pipe Sizes: 1/8” to 24” Wall thickness Schedules: SCH 10, SCH 20, SCH 40, SCH STD, SCH 80, SCH XS to SCH 160, SCH XXS Length: Single Random Length, Double Random Length, 20 ft, 40 ft Ends Types: Plain, Beveled Coatings: 3PE/3LPE, FBE, Galvanized, Varnished, CRA or stainless clad and lined
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