PCD Russian Ship Plate Specifications, KRD Korean Classification Society Certified Ship Plate, KD Sh

PCD Russian Ship Plate Specifications, KRD Korean Classification Society Certified Ship Plate, KD Sh

PCD is certified by the Russian Bureau of Shipping, KRD is certified by the Korean Bureau of Shipping, KD is the board certified by the Japan Bureau of Shipping.

The general strength of hull structure steel is divided into A, B, C, D 4 grades, the yield strength (not less than 235N/mm^2) and tensile strength (400~520N/mm^2) of these 4 grades of steel, but the impact energy at different temperatures is different;

The steel used in the high-strength hull structure is divided into strength grades according to its minimum yield strength, and each strength grade is divided into A, D, E, and F4 grades according to its impact toughness.

KD ship plate fixed rolling: Wuyang Xiangyang

GBT712-2022 "Structural Steel for Ships and Offshore Engineering" standards include:

A, B, D, E, AH32. DH32,EH32. FH32AH36,DH36,EH36,FH36AH40,DH40,EH40,FH40

AH420,DH420,EH420,FH420AH460,DH460,EH46O,FH460AH500,DH500,EH500, FH500AH550,DH550,EH550,FH550AH620,DH620,EH620,FH620AH690,DH690,EH690 FH690AH790,DH790 EH790,FH790,AH890, DH890,EH890,AH960 ,DH960,EH960.

PCD ship plate material refers to the marine hot-rolled steel plate used to manufacture the hull structure. It is mainly used in the manufacture of hulls and decks of marine, coastal and inland waterway vessels. Due to the harsh working environment of the ship: the hull shell should withstand the chemical corrosion of seawater, electrochemical corrosion, corrosion of marine organisms and microorganisms: it should also withstand large wind and wave impacts and alternating loads. In addition, due to the complex processing and forming of ships, there are strict requirements for the steel of the hull structure.

From January 1, 2023, the third part of the Ship Energy Efficiency Management Plan (SEEMP) will come into effect, and all types of ships over 5,000 gross tons are required to report fuel consumption and sailing mileage to the competent authority or authorized classification society (RO). The ship's competent authority calculates an Attained CII based on the type and size of the vessel, annual fuel consumption and distance traveled, compares it with the Required CII of the same type of vessel, and assigns five grades to the vessel from A to E, with an additional 2% emission reduction rate applied annually from 2023 to 2026. Therefore, it is important for shipping companies to maintain a high CII rating of their ships, and to this end, they are considering various measures such as limiting the speed of ships and installing energy-saving devices.

KD is a Nippon Bureau of Shipping certified ship plate, and the origins of Nippon Kaiji Kyokai began with the establishment of the Teikoku Kaiji Kyokai (Imperial Marine Association) held in Tokyo in November 1899 to promote the regulation and development of the Japanese shipping and shipbuilding industry. The association's early stages were used to promote a wide range of shipping-related activities, a very different from the focused technical role that ClassNK plays today.

By 1915, the structures necessary for the operation of ship classification were ready. In 1919, Teikoku Kaiji Kyokai (hereinafter referred to as TKK) gained international recognition by forming four related classification societies with the three major classification societies of the "BC" era, combined with LR, ABS and RINA. The first ship to receive a class certificate from the then TKK was the Kwanan Maru in 1920.

Nippon Classification Society, also known as the Japan Maritime Association, abbreviated as NK, commonly known as ClassNK, is one of the member countries of the International Classification Association of Shipping, which is widely known internationally.