GB/T 7734-2015: Method for Ultrasonic Testing of Clad Steel Plates

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Scope

This Standard specifies the general requirements, testing methods, comparison
specimen, testing equipment and commissioning of the method for ultrasonic testing
of clad steel plates; the evaluation and classification of the unbounded portion, and
etc.
This Standard is applicable to test for combination quality of clad surface between
explosive welding clad steel plate and the rolling clad steel plate with substrate
thickness of more than 4mm. The ultrasonic testing of the clad steel plate with other
specifications can also refer to this Standard.

Basic Data

Standard ID	GB/T 7734-2015 (GB/T7734-2015)
Description (Translated English)	Method for Ultrasonic Testing of Clad Steel Plates
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H26
Classification of International Standard	77.040.20
Word Count Estimation	11,171
Date of Issue	2015-12-10
Date of Implementation	2016-11-01
Older Standard (superseded by this standard)	GB/T 7734-2004
Quoted Standard	GB/T 2970-2016; JB/T 10061
Regulation (derived from)	National Standard Announcement 2015 No.38
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the general requirements of ultrasonic testing methods for composite steel plates, testing methods, comparison test, testing equipment and its debugging, assessment and classification of unbound parts. This standard is applicable to the inspection of the quality of the composite surface of the composite plate of the rolled composite steel plate and the explosive welded composite steel plate with the thickness of the substrate of 4mm or more. Other specifications of the composite plate ultrasonic testing can also refer to this standard.