For third-class III forged flanges used in pressure vessels, when purchasing finished products, what information is required?
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For third-class III forged flanges used in pressure vessels, when purchasing finished products, what information is required? Our company does not have the capability for mechanical finishing. For the purchased pressure vessel grade III forgings, we need the flange supplier to provide certain documents to our factory. What exactly are those documents? 1 Quality certificate for the forging material, 2 Heat treatment report for the forging, heat treatment curve diagram. 3 Ultrasonic testing report for forgings, 4 Is it a flange certificate?
That standard! Accept according to standards!
That’s basically all the information mentioned above, unless there are any special requirements.
Refer to sections 8.1 to 8.3 of NBT 47008 2017; the specific requirements for three-stage forgings are outlined there. There are detailed requirements.
Grade III should have a mechanical property test report, right?
We specialize in manufacturing flanges for pressure vessels, primarily using stainless steel materials. Our products are mainly used in the new energy industry; we are also capable of processing large ring forgings. For inquiries, please contact us at V: S290153259