SY/T 6423.6-1999Petroleum and natural gas industries. Non-destructive testing (NDT)methods of steel tubers for pressure purposes. Ultrasonic testing of seamless and welded (expect submerged arc-welded) steel tubes for the detection of laminar imperfections (English PDF)
石油天然气工业 承压钢管无损检测方法 无缝和焊接（埋弧焊除外）钢管分层缺欠的超声波检测
SY/T 6423.6 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| SY/T 6423.4-2013 | Petroleum and natural gas industries—Non-destructive testing(NDT) methods of steel tubes—Part4:Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections | Valid |
| SY/T 6423.6-1999 | Petroleum and natural gas industries. Non-destructive testing (NDT)methods of steel tubers for pressure purposes. Ultrasonic testing of seamless and welded (expect submerged arc-welded) steel tubes for the detection of laminar imperfections | Obsolete |
SY/T 6423.6-1999 is obsolete. It has been replaced by SY/T 6423.4-2013. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
State Administration of Petroleum and Chemical Industries
Level / Type
National · Recommended
Issue date
August 9, 1999
Implementation date
April 1, 2000
Scope
SY/T 6423.6-1999 is the English-translated version of 石油天然气工业 承压钢管无损检测方法 无缝和焊接（埋弧焊除外）钢管分层缺欠的超声波检测.
SY/T 6423.6-1999 is the Chinese industry standard "Petroleum and natural gas industries. Non-destructive testing (NDT)methods of steel tubers for pressure purposes.
Ultrasonic testing of seamless and welded (expect submerged arc-welded) steel tubes for the detection of laminar imperfections". It was issued on August 9, 1999 by the State Administration of Petroleum and Chemical Industries, and took effect on April 1, 2000. It is obsolete: it has been replaced by SY/T 6423.4-2013.
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Document preview — SY/T 6423.6-1999
National Standard of the People's Republic of China
Issued by: State Administration of Petroleum and Chemical Industries
Contents
- Document data
1 Document data
Sector: Petroleum & Gas (industry standard).
Issuing body: State Administration of Petroleum and Chemical Industries.
Date of issue: 1999-08-09.
Date of implementation: 2000-04-01.
Status: obsolete, replaced by SY/T 6423.4-2013.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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Related Standards
SY/T 6423.7-2017 — Petroleum and natural gas industries. Non-destructive testing (NDT)methods of steel tubes. Part 7: Magnetic particle inspection of seamless and welded ferromagnetic steel tubes for the detection of surface imperfections
SY/T 6423.5-1999 — Petroleum and natural gas industries-Non-destructive testing (NDT)methods of steel tubers for pressure purposes. Ultrasonic testing of strips/plates used in the manufacture of welded tubes for the detection of laminar imperfections
SY/T 6423.7-1999 — Petroleum and natural gas industries. Non-destructive testing (NDT)methods of steel tubers for pressure purposes. Ultrasonic testing of the ends of seamless and welded steel tubes for the detection of laminar imperfections
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SY/T 6423.6-1999
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