Can 15CrMoG pipes meet the requirements of both GB 5310 and GB 6479?

2021-09-08View Original

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This post was last edited by leo_0088 on 2021-9-10 08:23. Can 15CrMoG GB 5310 and 15CrMo GB 6479 be used interchangeably? Which requirement is stricter? The medium is natural gas, with a temperature of ≤400°C and a pressure of less than 2.9 Mpa.

Reply #22021-09-09

15CrMoG is only specified in GB 5310; the grade specified in GB 6479 is 15CrMo.

Reply #32021-09-10

What is currently available is 15CrMoG in accordance with the GB5310 standard, while the design documents specify 15CrMo per the GB 6479 standard; it’s not clear whether it can be replaced

Reply #42021-09-10

A change by the designer is required; it cannot be replaced on one’s own.

Reply #52022-03-14

5310 is generally used for high-pressure steam pipelines, while 6479 is typically used for seamless pipes in high-pressure fertilizer applications

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Can 15CrMoG pipes meet the requirements of both GB 5310 and GB 6479?

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