CCS/NV/GL620 series steel is a structural steel for ships and marine engineering, divided into four quality grades A, D, E, F, namely AH620, DH620, EH620, FH620. H is a high-strength building material, and 620 is a lower yield strength.
AH620 steel plates executive standard: GB711-2011
This standard is used in the manufacture of steel plates with a thickness of not more than 150mm for navigating ships, fishing vessels and marine engineering structures in ocean, coastal and inland waterways.
AH620, DH620, EH620, FH620 steel sheet delivery status: thermomechanical rolling (TMCP), quenching and tempering (tempering), thermomechanical rolling + tempering (TMCP+T).
AH620, DH620, EH620, FH620 steel plate size, shape, weight and allowable deviation
The size, shape, weight and allowable deviation of the steel plate should meet the requirements of GB/T709, and the deviation under the thickness is -0.30mm.
The grades specified in the GB712-2011 ship and marine engineering structural steel standard are: A, B, D, E, AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, FH40, AH420 , DH420, EH420, FH420, AH460, DH460, EH460, FH460, AH500, DH500, EH500, FH500, AH550, DH550, EH550, FH550, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690
AH620, DH620, EH620, FH620 shipbuilding steel plates are high-strength ship plates, which can be produced by Wuyang Steel Plant in my country, and can produce ship steels of different specifications according to user needs, such as the United States, Norway, Japan, Germany, France, etc., and its classification society certification As follows: CCS, ABS, GL, BV, DNV, NK, LR, RINA, KR, VL.
