• Improper welding of X80 pipeline may cause cracks
• Brief introduction of API X52 pipeline steel
• The difference between PSL1 and PSL2
• Harm of inclusions in X70 pipeline steel
• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

What is the difference between A131 AH36 plate and DH36 plate

A131 AH36 plate is room temperature steel, while DH36 plate is low temperature steel.

A131 AH36 plate and DH36 plate etc. marine steel plates refer to the hot rolled steel plates used to manufacture hull structure. A131 AH36 plate and DH36 plate are produced according to the requirements of the Classification Society Construction Code.

Because of the harsh working environment of ships, the hull structures are subject to chemical corrosion, electrochemical corrosion and corrosion of marine organisms and microorganisms; the hull is subjected to large wind and wave impact and alternating load; the shape of ships makes its processing method complex and other factors, the requirements for A131 AH36 plate and DH36 plate etc. hull structure steel are strict.

Firstly, good toughness is the most critical requirement for A131 AH36 plate and DH36 plate etc. hull structure steel plates. In addition, A131 AH36 plate and DH36 plate are required to have high strength, good corrosion resistance, welding performance, processing and forming performance and surface quality. In order to ensure quality and toughness of A131 AH36 plate and DH36 plate, it is required that the chemical composition of Mn/C is more than 2.5 and produced by a steel mill approved by the ship inspection department.