Knowledge
Welding Procedures for CCS Grade D Shipbuilding Steel Plates
CCS Grade D is a normal-strength structural steel for ship hulls, with a yield strength of ≥235 MPa, an impact energy absorption of ≥34 J at –20 °C, and good weldability. Key aspects of the welding process include: the use of low-hydrogen welding consumables, appropriate heat input, preheating for thick plates or in low-temperature environments, and control of interpass temperatures, in accordance with the CCS ‘Specifications for Materials and Welding’. The following is a reference for the welding process for CCS Grade D shipbuilding steel plates.
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- CCS Grade D
Storage, Transport and Inventory Management of CCS Grade B Shipbuilding Steel Plates
Improper storage and transport may cause surface rust, deformation and stress damage to CCS Grade B shipbuilding steel plates, thereby reducing their workability and potentially rendering them unfit for acceptance by the shipyard. Therefore, implementing scientific and standardised inventory management is crucial to maintaining the inherent properties of marine steel.
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- CCS Grade B
Optimisation of the Corrosion Resistance and Surface Anti-Corrosion Treatment of CCS Grade B Shipbuilding Steel Plates
Marine salt spray, seawater erosion and microbial corrosion are the primary factors causing corrosion of ship hull steel. Like standard carbon steel used in shipbuilding, CCS Grade B steel does not possess inherent corrosion resistance; standardised surface treatment and anti-corrosion coating techniques are therefore essential to extend its service life.
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- CCS Grade B
Key Applications of CCS Grade B Shipbuilding Steel Plates: Hull Structures and Offshore Engineering
Although CCS B shipbuilding steel plates are not commonly used in areas of shipbuilding that require high-strength steel, they are a general-purpose material in the shipbuilding and offshore engineering sectors. We have summarised the typical applications of CCS B shipbuilding steel plates in hull structures and offshore engineering for your reference.
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- CCS Grade B
Weldability of CCS Grade B Shipbuilding Steel Plates
CCS Grade B shipbuilding steel plates are highly suited to the requirements of shipyards thanks to their excellent weldability. Standardised welding procedures and construction management can effectively reduce defect rates and extend the service life of the hull structure. It is recommended that shipbuilders develop tailored welding plans based on plate thickness and the operating conditions of the waters in which the vessel will be deployed, in order to maximise the material’s engineering value.
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- CCS Grade B
