Specific requirements for heat treatment of pressure vessels
Thread Content
I would like to ask what specific requirements should be specified for the heat treatment of pressure vessels? How to determine which parts require heat treatment?
Conditions requiring post-weld heat treatment: General conditions: various combinations of thickness, material, and preheating temperature, as well as some low-temperature vessels. Required condition: The diagram indicates stress corrosion, extreme pressure conditions, or highly hazardous media. Condition not required: Austenitic stainless steel
This post was last edited by dodoren on 2020-5-19 16:06. When should the equipment undergo heat treatment, and when should a full-scale heat treatment be carried out? If the pipe outlet is changed or brackets and insulation nails are added to the equipment during on-site construction, is heat treatment still required? For example, 20 MPa, carbon steel container, ASME standard
Based on the design structure of the equipment and the standards to be followed, each standard specifies requirements for its respective manufacturing aspects. Such as GB150 GB151
There are overall treatment and local treatment, flame heating methods and electric heating methods, as well as internal heating of the container and external heating of the container.