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English Translations » 【管道阀门技术圈】 » Differences between HG/T 20553 Ia and GB/T 8163

Differences between HG/T 20553 Ia and GB/T 8163

2017-03-22View Original

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In the pipeline registration form provided in the materials, both standards HG/T 20553 Ia and GB/T 8163 are listed. The client asked me if there was a mistake (why were two standards listed?)
Reply #22017-03-22
HG/T 20553 Ia is a dimensional standard that specifies the outer diameter of pipes, while GB/T 8163 is a material standard that defines the properties of steel pipes; they are not redundant
Reply #32017-03-22
The correct answer is above: one refers to the outer diameter of the steel pipe, while the other standard specifies the manufacturing standards and material

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Translated at 2026-07-21 04:21:00

Original: https://bbs.hcbbs.com/thread-1763964-1-1.html

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