Knowledge
Storage, Transport and Corrosion Prevention of CCS DH36 Shipbuilding Steel Plates
When procuring CCS DH36 shipbuilding steel plates, attention must not only be paid to the production quality of the product, but also to the standardised management of storage, transport and corrosion prevention. Improper daily management can easily lead to surface rusting, plate deformation and a decline in internal properties, thereby affecting the quality of subsequent welding and assembly.
Welding Process for CCS DH32 Shipbuilding Steel Plates
CCS DH32 shipbuilding steel plate has a low carbon equivalent (CEV) and offers good overall mechanical properties and weldability. It is widely used in the manufacture of critical load-bearing components for bulk carriers, container ships and offshore platforms, and its weld quality directly affects the overall structural safety and service life of the vessel. To ensure the low-temperature toughness of the welds, it is essential to select appropriate welding methods and compatible welding consumables, carry out thorough pre-welding preparation, strictly control heat input and interpass temperatures during the welding process, perform post-weld heat treatment, and rigorously inspect the weld quality.
Applications of CCS DH32 Steel Plates in Shipbuilding and Offshore Engineering
DH32 shipbuilding plate is a high-strength, multi-purpose steel designed for marine engineering structures, widely used in shipbuilding, offshore platforms and marine infrastructure. This paper provides a systematic overview of its typical applications in bulk carriers, container ships, oil tankers, offshore platforms and polar vessels, and analyses its performance advantages through engineering case studies.
Corrosion Protection Technology for CCS AH36 Shipbuilding Steel Plates in Marine Environments
CCS AH36 shipbuilding steel plate is a high-strength structural steel plate certified by the China Classification Society, with a yield strength of ≥355 MPa. It is widely used in the construction of large merchant vessels, bulk carriers, oil tankers and offshore engineering equipment. In complex and harsh marine environments, corrosion is one of the primary causes of structural failure in CCS AH36, making it essential to establish a scientifically sound and effective anti-corrosion system covering the entire life cycle.
Differences Between CCS AH36, DH36 and EH36 Shipbuilding Plates
CCS AH36, DH36 and EH36 are all 360 MPa-grade high-strength hull structural steels certified by the China Classification Society (CCS), and comply with the GB/T 712-2022 standard ‘Structural Steel for Ships and Offshore Structures’. The three grades have identical basic mechanical properties, such as yield strength, tensile strength and elongation; the key distinction lies in low-temperature impact toughness, which in turn leads to differences in chemical composition, production processes, application scenarios and cost.
