GB/T 42664-2023 English PDF (GBT42664-2023)

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GB/T 42664-2023: Non-destructive testing of steel tubes - Automated ultrasonic testing of the weldseam of welded steel tubes for the detection of longitudinal and/or transverse imperfections
GB/T 42664-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.040.20
CCS H 26
GB/T 42664-2023 / ISO 10893-11:2011
Non-destructive testing of steel tubes - Automated ultrasonic
testing of the weld seam of welded steel tubes for the
detection of longitudinal and/or transverse imperfections
(ISO 10893-11:2011, Non-destructive testing of steel tubes - Part 11:
Automated ultrasonic testing of the weld seam of welded steel tubes for the
detection of longitudinal and/or transverse imperfections, IDT)
ISSUED ON: AUGUST 06, 2023
IMPLEMENTED ON: MARCH 01, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 General requirements ... 6
5 Testing methods ... 6
6 Reference tube ... 8
6.1 General ... 8
6.2 Reference groove ... 10
6.3 Reference through-holes ... 12
7 Calibration and verification of equipment ... 13
7.1 General ... 13
7.2 Adjust trigger/alarm thresholds ... 13
7.3 Verification and recalibration ... 13
8 Acceptance ... 14
9 Test report ... 15
Annex A (normative) Manual/semi-automatic ultrasonic inspection of blind and
suspicious areas at tube ends ... 16
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents".
This document identically adopts ISO 10893-11:2011 "Non-destructive testing of steel
tubes - Part 11: Automated ultrasonic testing of the weld seam of welded steel tubes for
the detection of longitudinal and/or transverse imperfections".
This document has made the following minimal editorial changes:
- to coordinate with the existing standards, change the name of the standard to "Non-
destructive testing of steel tubes - Automated ultrasonic testing of the weld seam
of welded steel tubes for the detection of longitudinal and/or transverse
imperfections";
- Incorporate amendments to ISO 10893-11:2011/Amd.1:2020. The outer margins
of the clauses covered are marked with vertical double lines (||).
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
This document was proposed by China Iron and Steel Industry Association.
This document shall be under the jurisdiction of National Technical Committee on Steel
of Standardization Administration of China (SAC/TC 183).
The drafting organizations of this document: Zhejiang Jinzhou Tube Industry Co., Ltd.,
Jiangsu Wujin Stainless Steel Co., Ltd., Zhejiang Special Equipment Research Institute,
Anshan Changfeng Non-destructive Testing Equipment Co., Ltd., Shanxi Taigang
Stainless Steel Tube Co., Ltd., Zhangjiagang Shagang Jinzhou Tubeline Co., Ltd.,
Wuhan Zhongke Innovation Technology Co., Ltd., Metallurgical Industry Information
Standards Research Institute.
Main drafters of this document: Yang Weifang, Fan Hailong, Ji Feng, Cheng Mao, Chen
Kaiyun, Wang Bowen, Zhang Bing, Han Zhixiong, Dong Li, Chen Zemin, Zhong
Fengping, Liu Zhongkui, He Xiaohui, Guo Guanjun, Jin Yaohui, Xue Jianzhong, Bao
Xiaorong.
Non-destructive testing of steel tubes - Automated ultrasonic
testing of the weld seam of welded steel tubes for the
detection of longitudinal and/or transverse imperfections
1 Scope
This document specifies the requirements for automated ultrasonic transverse wave
(generated by conventional or phased array technology) inspection of submerged arc
welded (SAW) steel tube or resistance and induction welded (EW) steel tube welds.
For SAW tube, this inspection includes detection of imperfections primarily parallel to
the weld, or perpendicular to the weld according to agreement, or in both directions.
For EW steel tubes, this inspection includes the detection of imperfections oriented
mainly parallel to the weld. For longitudinal imperfections, Lamb wave detection is
chosen by the manufacturer.
For imperfections in the EW tube welds, full circumferential ultrasonic inspection can
be performed.
This document also applies to the inspection of circular hollow profiles.
NOTE: For full circumferential ultrasonic testing of seamless steel tubes and welded steel tubes
(except SAW steel tubes), see ISO 10893-10.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 5577, Non-destructive testing - Ultrasonic testing - Vocabulary
NOTE: GB/T 12604.1-2020 Non-destructive testing - Terminology - Ultrasonic
testing (ISO 5577:2017, MOD)
ISO 9712, Non-destructive testing - Qualification and certification of NDT
personnel
NOTE: GB/T 9445-2015 Non-destructive testing - Qualification and certification of
NDT personnel (ISO 9712:2012, IDT)
sample tube and the chip shall be the same as the relative movement speed of the steel
tube and the probe during the production inspection process. If the manufacturer can
prove that other verification results are the same as the dynamic verification results.
Other verification methods are allowed.
7.3.3 If any parameters used in the initial calibration change, the device shall be
recalibrated.
7.3.4 During the production inspection and calibration process, if it is found that the
equipment does not meet the calibration requirements, all steel tubes tested since the
last calibration shall be re-tested after the equipment is recalibrated.
8 Acceptance
8.1 All steel tubes whose test signals are lower than the trigger/alarm threshold shall be
deemed to have passed the test.
8.2 Steel tubes whose detection signal is greater than or equal to the trigger/alarm
threshold signal shall be regarded as suspicious. Or the manufacturer may choose to re-
test according to the provisions of this document. If after re-inspection, all detection
signals are below the trigger/alarm threshold. The tube shall be deemed to have passed
this test. Otherwise, the steel tube shall be marked as suspect.
8.3 According to the requirements of product standards, suspicious steel products shall
be handled according to one or more of the following methods:
a) Upon agreement between the purchaser and the manufacturer, suspicious areas
may be detected using appropriate methods. Or use other non-destructive testing
techniques and methods to re-test. Acceptance registration shall be agreed upon
by the purchaser and manufacturer. Retesting shall be in accordance with
documented procedures.
b) Suspicious areas shall be sanded down by suitable methods. After it is verified
that the remaining wall thickness is within the tolerance range, the steel tube shall
be re-tested in accordance with the above regulations. If no signal greater than or
equal to the trigger threshold is generated, the steel tube shall be deemed to have
passed this test.
c) Suspicious areas shall be excised.
d) The steel tube shall be deemed to have failed this test.