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YB/T 4083-2020 English PDF

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YB/T 4083-2020: (Comprehensive performance test method of automatic eddy current testing system for steel pipe and steel bar)
Status: Valid

YB/T 4083: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YB/T 4083-2020	English	189	Add to Cart	3 days [Need to translate]	(Comprehensive performance test method of automatic eddy current testing system for steel pipe and steel bar)	Valid	YB/T 4083-2020
YB/T 4083-2011	English	140	Add to Cart	0--9 seconds. Auto-delivery	Measurement method of comprehensive properties for automatic eddy current flaw detection system for steel tubes	Obsolete	YB/T 4083-2011
YB/T 4083-2000	English	199	Add to Cart	2 days [Need to translate]	Measurement method of comprehensive properties for automatic eddy current flaw detection system for steel tubes	Obsolete	YB/T 4083-2000

PDF similar to YB/T 4083-2020

Standard similar to YB/T 4083-2020

GB/T 3310 GB/T 4162 YB/T 6136 YB/T 6019 YB/T 4082

Basic data

Standard ID	YB/T 4083-2020 (YB/T4083-2020)
Description (Translated English)	(Comprehensive performance test method of automatic eddy current testing system for steel pipe and steel bar)
Sector / Industry	Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H26
Word Count Estimation	8,846
Date of Issue	2020-12-09
Date of Implementation	2021-04-01
Older Standard (superseded by this standard)	YB/T 4083-2011
Regulation (derived from)	Ministry of Industry and Information Technology Announcement No. 48 (2020)
Issuing agency(ies)	Ministry of Industry and Information Technology

YB/T 4083-2011 YB FERROUS METALLURGY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.040.20 H 26 Replacing YB/T 4083-2000 Measurement Method of Comprehensive Properties for Automatic Eddy Current Flaw Detection System for Steel Tubes ISSUED ON. DECEMBER 20, 2011 IMPLEMENTED ON. JULY 1, 2012 Issued by. Ministry of Industry and Information Technology of the People's Republic of China

Foreword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 5 4 Test conditions ... 5 5 Contrast sample ... 5 6 Test items and methods ... 6 7 Test report ... 9

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces YB/T 4083-2000. Compared with YB/T 4083-2000, the main technical changes are as follows. - Modified the “the eddy current flaw detector must get assay approval from relevant department” to be “the eddy current flaw detector shall be calibrated” (see 4.1); - Added making requirements for the contrast samples of rotating steel pipe/flat coil eddy current flaw-detection systems (see 5.1); - Added the test for circumferential sensitivity’s difference (fluctuation of circumferential sensitivity) of rotating steel pipe/flat coil eddy current flaw-detection system (see 6.2); - Added the stipulation for test report (see 7). This Standard was proposed by China Iron and Steel Association. This Standard shall be under the jurisdiction of the National Technical Committee of Steel Standardization (SAC/TC183). Drafting organizations of this Standard. Central Iron & Steel Research Institute, EDDYSUN (Xiamen) Electronic Co., Ltd. AND China Metallurgical Information and Standardization Institute. Main drafters of this Standard. Zhang Jianwei, Fan Hong, Zhang Ke, Lin Junming, Shen Haihong, Ma Guohua, Zhang Wenjie, Jia Huiming AND Dong Li. This Standard replaces the previous standards as follows. - YB/T 4083-1992, YB/T 4083-2000. Measurement Method of Comprehensive Properties for Automatic Eddy Current Flaw Detection System for Steel Tubes

Scope

This Standard specifies the “test conditions, contrast samples, test items, test methods, and minimum standards for performance indicators that should be achieved for automatic eddy current flaw-detection system of steel tubes (it is generally composed by eddy current flaw detector, detection coil, magnetic saturation device AND mechanical transmission device)” AND content of test report. This Standard applies to comprehensive performance’s test of steel-tube-through-type OR rotating steel pipe/flat coil type automatic eddy current flaw-detection system. For comprehensive performance’s test of steel rod automatic eddy current system, or magnetic flux leakage detection system, AND automatic eddy current flaw-detection system for steel tube and other magnetic flux leakage detection system for steel tube, this Standard can be used for reference during the usage.

Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB/T 7735 Steel Tubes - The Inspection Method on Eddy Current Test GB/T 12604.6 Non-destructive Testing - Terminology - Terms Used in Eddy Current Testing YB/T 143 Measurement Method of the Error of Signal Amplitude for Eddy Current Flaw Detectors YB/T 145 Die Casting and Size Measurement Method of Artificial Defects on the Reference Sample Pipes circumferential sensitivity) 6.2.1 Eddy current flaw-detection system for steel-tube-through type coil Adjust the flaw-detection system to the normal flaw-detection state; according to the speed of the normal flaw-detection, adjust the sensitivity; use the contrast sample shown in Figure 1 to make the three artificial holes in the middle part just alarm, and record the dB value of the gainer or attenuator, at this time; adjust the sensitivity of the flaw-detection, and record the dB value when the 3 artificial holes begin not to alarm. The maximum difference between them is the difference of circumferential sensitivity. The absolute value of this difference shall not be greater than 3dB. For the steel tube whose outer diameter is greater than or equal to 100mm, this absolute value shall not be greater than 4dB. Perform the test for 3 times consecutively, and if the results of the 3 times are not the same, the worst value shall be taken. 6.2.2 Eddy current flaw-detection system for rotating flat coil For the flaw-detection system, whose probe is in rotating type and whose steel tube can move forward in straight line, use the contrast sample shown in Figure 2 to let the artificial defects in middle part go through the flaw-detection system repeatedly. Firstly, set 0° position for the sample at will; adjust the sensitivity of device’s each channel; record gainer’s or attenuator’s dB value when the artificial defect just alarms. For the rotating sample, when it is at 120° and 240° position, use the same method to test and record the dB value when the artificial defect just alarms. The subtraction of the two dB values which differ by most is the difference of circumferential sensitivity. The absolute value of this difference shall not be greater than 3dB. For the steel tube whose outer diameter is greater than or equal to 100mm, this absolute value shall not be greater than 4dB. Perform the test for 3 times consecutively for each channel, and if the results of the 3 times are not the same, the worst value shall be taken. 6.2.3 Eddy current flaw-detection system for rotating steel tube For the flaw-detection system, whose probe is fixed and whose steel tube can move forward in a spiral, AND for the flaw-detection system, whose probe can move forward along the axial direction of the steel tube and whose steel tube can spin on the spot, THEN, use the contrast sample shown in Figure 2 to let the artificial defect in middle part go through the flaw-detection system repeatedly. Perform the test for three times consecutively; when the 3 artificial defects in middle part just alarm, record gainer’s or attenuator’s dB value; adjust the sensitivity of flaw-detection; when the 3 artificial defects in middle part just not alarm, record gainer’s or attenuator’s dB value. The difference between them is the fluctuation of circumferential sensitivity. The absolute value of this difference shall not be greater than 3dB. For the steel tube whose outer diameter is greater than or equal to 100mm, this absolute value shall not be greater than 4dB. Perform the test for 3 times consecutively, and if the results of the 3 times are not the same, the worst value shall be taken.

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