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The Application of CCS Grade D Shipbuilding Steel Plates in Civilian Vessels and Offshore Engineering
CCS Grade D shipbuilding steel plates are widely used in commercial vessels, inland waterway vessels and offshore engineering structures subject to medium to low loads, owing to their stable mechanical properties, good low-temperature toughness and cost-effectiveness. This article provides a detailed overview of the specific application areas, operational characteristics and engineering compatibility advantages of these steel plates in various engineering contexts.
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- CCS Grade D
Surface anti-corrosion treatment for CCS Grade D shipbuilding steel plates
The marine environment, with its high levels of salt spray, seawater and humid air, is highly conducive to the electrochemical corrosion of carbon steel. During prolonged service at sea, unprotected CCS Grade D steel plates are prone to surface rust, pitting and structural thinning, which not only shortens their service life but also jeopardises the safety of the vessel. Consequently, the standardised anti-corrosion treatment of Grade D steel plates prior to ship assembly is an essential part of the manufacturing process.
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- CCS Grade D
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
