CCSDH460 ship plate, CCSDH460 steel plate fixed rolling, CCS-DH460 offshore engineering structural s

CCSDH460 ship plate, CCSDH460 steel plate fixed rolling, CCS-DH460 offshore engineering structural s

CCS-DH460 is China Classification Society certification ultra-high strength marine steel, CCS-DH460 steel plate is a structural steel plate for offshore platforms, with the development of large-scale ship tonnage, the domestic high-strength extra-thick plate marine plate steel production technology is obviously insufficient. It is mainly due to the difficulty and high quality requirements of high-strength and toughness shipboard steel in the production process. In order to meet the needs of the domestic shipbuilding industry, high-tech and high-value-added shipboard steel enterprises hope to promote product upgrading through technological improvement and vigorous research and development.

CCSDH460 steel plate fixed rolling # Wugang Xiangyang #

CCSDH460 steel plate implementation standard: GB711-2011

The grades specified in GB712-2011 structural steel standard for ships and offshore engineering are: A, B, D, E, AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, AH420, DH420, EH420, FH420, AH460, DH460, EH460, FH460, AH500, DH500, EH500, FH500, AH550, DH550, EH550, FH550, FH550, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690

CCSDH460 steel plate size, shape, weight and allowable deviation

CCSDH460 steel plates are attributed to higher strength ships and marine structural steel plates, from the development of higher strength ship plates in the world today, low-carbon equivalent, microalloying, controlled rolling and cooling, heat treatment and other process technologies are widely selected. The participation of microalloying elements can not only play a role in the marching strength, compensate for the loss of strength caused by the reduction of carbon equivalent, but also the welding, mechanical and technological functions of the marching steel. Because of the environmental requirements of CCSDH460 the application of high-strength ship plates such as steel plates and CCSDH460 steel plates, it can meet the requirements of high strength, high toughness, high welding function, and thickness direction function.

CCSDH460 mechanical properties:

The mechanical properties of steel should comply with the provisions in the following table.

When taking impact test samples for steel with a thickness of 6mm~<12mm, small-sized samples of 5mm*10mm*55mm and 7.5mm*10mm*55mm can be taken respectively, and the impact energy values are not less than 2/3 and 5/6 of the specified value respectively. Larger specimens are preferred.

The impact test results of the steel are calculated based on the arithmetic mean of a set of 3 specimens, and 1 of the test values is allowed to be below the specified value, but not less than 70% of the specified value. The section shrinkage rate in the Z direction of steel thickness should comply with the provisions of the following table.