May I ask what material is generally used for the nozzle flange on the container?
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I would like to ask everyone, if the body material of the pressure vessel is stainless steel, what should be the choice of the material of the nozzle and the material of the nozzle flange? (When the medium is moderately and severely hazardous), thank you. This post was last edited by jia717 on 2009-2-17 17:54 ]
Generally, the material of equipment interfaces and interface flanges should be consistent with the material of the equipment body of the connecting parts.
Generally speaking, the same material as the cylinder can be used. If the diameter is too large and it is too wasteful, the flange can also be made of carbon steel with surfacing welding.
This is an unspoken rule in the industry and cannot be answered in detail. The material should be the same as the main body as much as possible, otherwise it will increase the requirements for welding of dissimilar steels.
Generally the same as the equipment materials, but it depends on the specific situation.
If it is toxic, generally use a necked butt welding flange. Generally it seems that it should be forged. You can also look up the flange standard for the corresponding material. It should be stainless steel. This post was last edited by eddy-8280103 on 2009-2-19 16:08 ]
Not necessarily. For some large-diameter flanges, in order to save materials, there are also flanges made of carbon steel and low alloy steel, such as stainless steel manholes. You can learn from their structures. This is especially common on specialty materials equipment.
Either stainless steel or composite can be used because the container is stainless steel and the medium is moderately and severely hazardous.
Yes, it should be consistent with the main material of the equipment and should be determined according to the medium.
Let me secretly tell you a shortcut: you can use a flange flange. It saves materials and money, and it can also meet the process requirements. It’s the best of all three.
The material of the flange should be the same as the main body of the equipment. This is generally a conservative approach.
The materials of the nozzle and flange are the same as those of the cylinder. The flange is generally made of forgings.