Issues related to the use of grade III forgings

2022-04-10View Original

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Under what circumstances are grade III forgings required? Are there any standards regarding the use of pipes of grades GC1 and SHA1? I only see information regarding pressure; are there any regulations related to toxicity? Please provide more detailed information, thank you

Reply #22022-04-11

It is specified in clause 4.0.2 of HG20592.

Reply #32022-04-13

Thank you for the reply from the 4th floor; I’ve learned something

Reply #42022-04-15

Additional information for floors 3 and 4: The standard-related details for floor 3 are as specified in standard HG-T 20581, while those for floor 4 come from the same standard

Reply #52022-04-17

For the classification of forging grades, refer to the forging standards NB/T47;; for the selection of flange grades, consult the flange standards HG/T20592-20615.

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Issues related to the use of grade III forgings

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