GB/T 7735-2004
Steel tubes-The inspection method on eddy current test (English Version)

Standard No.
GB/T 7735-2004
Language
Chinese, Available in English version
Release Date
2004
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
 2017-09
Replace By
GB/T 7735-2016
Latest
GB/T 7735-2016(XG1-2021)
Replace
GB/T 7735-1995
Scope
This standard specifies the principle of eddy current flaw detection for seamless steel pipes and welded steel pipes (except submerged arc welded pipes), flaw detection requirements, flaw detection methods, comparison samples, flaw detection equipment, flaw detection equipment operation and adjustment, and flaw detection result evaluation. This standard applies to eddy current testing of steel pipes with an outer diameter of not less than 4 mm. The acceptance level of this standard is divided into A level and 8 level (see Table 1 and Table 2).

GB/T 7735-2004 history

  • 0000 GB/T 7735-2016(XG1-2021)
  • 2016 GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections
  • 2004 GB/T 7735-2004 Steel tubes-The inspection method on eddy current test
  • 1995 GB/T 7735-1995 Steel tubes--The inspection method on eddy current test
  • 0000 GB 7735-1987
Steel tubes-The inspection method on eddy current test



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