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Basic requirements for A387 Gr 91 pressure vessel steel steel plate

Safety and reliability are the most important quality characteristics of A387 Gr 91 pressure vessel steel. In order to ensure the safety of pressure vessel, the basic requirements of A387 Gr 91 pressure vessel steel must be satisfied are: high strength, good plasticity, toughness, manufacturing performance and media compatibility. Whether the A387 Gr 91 pressure vessel steel meets the requirements can be analyzed from the following aspects.

1. A387 Gr 91 pressure vessel steel chemical composition:
The chemical composition of A387 Gr 91 pressure vessel steel has great influence on its properties and heat treatment. The content of each chemical component must be controlled within specification of ASTM A387/ A387M standard.

2. A387 Gr 91 pressure vessel steel mechanical properties:
The mechanical behavior of A387 Gr 91 pressure vessel steel refers to the different behaviors of A387 Gr 91 steel under different loads and stress states, as well as the different working environments. The mechanical behavior of A387 Gr 91 pressure vessel steel depends on the mechanical properties of the material. The mechanical properties of A387 Gr 91 pressure vessel steel are mainly the criteria of strength, toughness and plastic deformation ability, which are the main basis for selecting materials and calculating strength in mechanical design.

In addition, the manufacturing process performance and physical properties of A387 Gr 91 pressure vessel steel are also important factors that decide the application of ASTM A387 Gr 91 steel.

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