BVDH36 ship plate introduction, BV-DH36 steel plate cutting, BV-DH36 French classification society c

BVDH36 ship plate introduction, BV-DH36 steel plate cutting, BV-DH36 French classification society c

BV-DH36 is a French classification society certified ship plate, marine steel plate refers to the hot-rolled steel plate produced according to the requirements of the construction code of the classification society for the manufacture of hull structure.

BV-DH36 steel plate fixed rolling # Wugang Xiangyang

GB/T712-2011 Structural Steel Standard for Ships and Offshore Engineering The grades specified 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, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690

China CCS USA ABS Germany GL France BV Norway DNV Japan NK UK LR Italy RINA Korea KR (Norway DNV merged with Germany to: VL

The size, shape, weight and allowable deviation of BV-DH36 steel plate shall

conform to the provisions of GB/T709, and the deviation under thickness shall be -0.3mm.

Generally speaking, Class A and Class B ship plates can meet the requirements of process and mechanical properties through ordinary rolling, so the production process is relatively simple; The production of D-class, E-class and high-strength ship plates requires better equipment. Under this equipment, this is achieved by controlled rolling and controlled cooling or heat treatment.

At the same time, the supply billet has a high intrinsic steel purity, especially the content of S, P, N, O, H in the steel. In order to reduce costs, it is the best policy to produce ship plates by hot rolling or controlled rolling rather than standardization. For high-strength ship plates with a thickness of less than 35mm, two-stage controlled rolling is adopted; High-strength ship plates with a thickness greater than 35mm are mainly produced by hot rolling and normalizing.

In order to ensure the performance of high-strength ship plates, microalloying technology is employed. By adding alloying elements such as Nb, V, and Ti to the steel, combined with the controlled rolling process, the grain is refined and the toughness is improved.

The application of

BV-DH36 in the market has good comprehensive mechanical properties, welding properties and process properties. It is suitable for the manufacture of ship hull structures, docks, oil production platforms, marine transmission pipelines, coastal power plants, wharf facilities and other structural parts in ocean-going, coastal and inland navigation areas. It belongs to the special class of steel, and there are many large cargo ships and passenger ships that are very much in need of this kind of ship plate.