GOST R ISO 10893-9-2016

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  ГОСТ Р ИСО 10893-9-2016

GOST R ISO 10893−9-2016 seamless steel Tubes and welded. Part 9. Ultrasonic method for automated control of bundles in rolls/sheets for the production of welded pipes

GOST R ISO 10893−9-2016

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

Seamless steel tubes and welded

Part 9

Ultrasonic method for automated control of bundles in rolls/sheets for the production of welded pipes

Seamless and welded steel tubes. Part 9. Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes

OKS 23.040.10
77.040.20
77.140.75

Date of introduction 2016−11−01

Preface

1 PREPARED by the Technical Committee for standardization TC 357 «Steel and cast iron pipes and cylinders», non-state educational institution of additional professional education «Scientific-training center «testing and diagnostics» («RTC «testing and diagnostics») and Open joint stock company «Russian scientific research Institute of pipe industry» (JSC"RosNITI») on the basis of the official translation into Russian language of the English version specified in paragraph 4 of the international standard, which is the Federal state unitary enterprise «Russian scientific and technical centre of information on standardization, Metrology and conformity assessment» (FGUP «STANDARTINFORM»)

2 SUBMITTED by the Technical Committee for standardization TC 357 «Steel and cast iron pipes and cylinders"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated March 16, 2016 N 147th St

4 this standard is identical to international standard ISO 10893−9:2011* «non-destructive testing of steel tubes. Part 9. Automatic ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel pipes» («Non-destructive testing of steel tubes — Part 9: Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes», IDT).

An international standard developed by ISO Technical Committee ISO/TC 17 «Steel», Subcommittee SC 19 «Technical delivery conditions for pipes working under pressure».

The name of this standard changed with respect to names specified international standard to link with the names adopted in the current national set of standards.

In applying this standard it is recommended to use instead of the referenced international standards corresponding national standards of the Russian Federation, details of which are given in Appendix YES

5 INTRODUCED FOR THE FIRST TIME

Application rules of this standard are established in GOST R 1.0−2012 (section 8). Information about the changes to this standard is published in the annual (as of January 1 of the current year) reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards».

Introduction

International standard ISO 10893−9 cancels and replaces the technically revised ISO 12094:1994.

In the complex of ISO 10893 under the name «non-destructive testing of steel tubes» includes:

— part 1. Automatic electromagnetic inspection of steel seamless and welded tubes (except tubes produced by arc welding under flux) for verification of the tightness;

— part 2. Automatic inspection eddy current seamless and welded steel pipes (excluding pipes obtained by arc welding under flux) for detection of defects;

— part 3. Automatic control method of magnetic flux leakage around the entire circumference of seamless and welded pipes made of ferromagnetic steel (except tubes produced by arc welding under flux) for the detection of longitudinal and/or transverse defects;

— part 4. The control method of penetrating liquids seamless and welded steel tubes for the detection of surface defects;

— part 5. Control method of magnetic particles seamless and welded pipes made of ferromagnetic steel for detecting surface defects;

— part 6. Radiographic testing of the weld of welded steel tubes for detection of defects;

— part 7. Digital radiographic testing of the weld of welded steel tubes for detection of defects;

— part 8. Automatic ultrasonic testing of seamless and welded steel tubes for the detection of laminations;

— part 9. Automatic ultrasonic testing for the detection of laminations in the strip/sheet metal used to manufacture welded steel pipes;

— part 10. Automatic ultrasonic testing along the whole circumference of seamless and welded steel pipes (excluding pipes obtained by arc welding under flux) for the detection of longitudinal and/or transverse defects;

— part 11. Automatic ultrasonic testing of the weld of welded steel tubes for the detection of longitudinal and/or transverse defects;

— part 12. Automatic ultrasonic control of thickness around the circumference of seamless and welded steel pipes (excluding pipes obtained by arc welding under flux).

1 Scope

This standard establishes requirements for the ultrasonic method of automatic control of roll/sheet in the manufacture of tubes for the detection of delamination prior to or during the manufacturing process of the pipes.

Notes

1 For welded pipe as an alternative at the discretion of the manufacturer it is possible to conduct ultrasonic testing for the presence of delamination after welding the longitudinal seam in accordance with ISO 10893−8.

2 by agreement between the purchaser and the manufacturer, the requirements of this standard can be applied to coils/sheets for tubes produced by arc submerged arc welding, after welding the longitudinal seam.


This standard can be applied to control coils/sheets for the manufacture of circular hollow sections.

2 Normative references

For the application of this standard requires the following referenced documents are*. For undated references, use the latest edition of the referenced document, including all changes:

ISO 5577 non-destructive Control. Ultrasound control. Dictionary (ISO 5577 Non-destructive testing — Ultrasonic inspection — Vocabulary)

ISO 9712 nondestructive testing. Qualification and certification of personnel (ISO 9712 Non-destructive testing — Qualification and certification of NDT personnel)

ISO 11484 steel Tubes for pressure. Qualification and certification of personnel for nondestructive testing (ISO 11484 Steel products — Employer''s qualification system for nondestructive testing (NDT) personnel)

3 Terms and definitions

This standard applies the terminology of ISO 5577 and ISO 11484 and the following terms with respective definitions:

3.1 calibration reflector (reference standard): Reflector to configure the non-destructive testing equipment (e.g. hole, notches etc.).

3.2 adjusting sample (reference sample): Sample (e.g., a segment of the roll/sheet) used for configuration.

3.3 pipe (tube) Hollow long product, open at both ends, of any shape in cross section.

3.4 seamless pipe (seamless tube): Tube, fabricated by sewing of the solid billet to obtain a hollow pipe in which they are further processed (hot or cold) to its final dimensions.

3.5 welded tube (welded tube): Pipe manufactured by forming a hollow profile from a flat product and welding adjacent edges together, and which after welding can be further processed (hot or cold) to its final dimensions.

3.6 the manufacturer (manufacturer): Organization that manufactures products in accordance with the relevant standards and States the conformity of the delivered products with all applicable provisions of the relevant standard.

3.7 agreement (agreement): a Contractual relationship between the manufacturer and the customer at the time of enquiry and order.

3.8 stratification (laminar imperfection): Defect located in the wall of the pipe and, typically, oriented parallel to the surface.

Note — the Area of the defect can be calculated by measuring its contour on the surface of the wall of the pipe.

4 General requirements

4.1 Ultrasonic inspection of the roll/sheet should be carried out before or during the production of pipes in flat form.

4.2 steel Coil/sheet must be sufficiently straight and free of foreign substances, to ensure the possibility of control.

4.3 Control should only be undertaken by trained operators, qualified in accordance with ISO 9712, ISO 11484 or equivalent documents and under the supervision of competent personnel appointed by the manufacturer (the manufacturer). In case of inspection by a third party, this must be agreed between the purchaser and the manufacturer. Control by permission of the employer must be conducted in accordance with written procedure. The procedure of nondestructive testing must be coordinated by a specialist 3 level, and personally approved by the employer.

Note — the Definition of levels 1, 2 and 3 to watch in relevant international standards, e.g. ISO 9712 and ISO 11484.

5 control Technology

5.1 steel Coil/sheet should be controlled by the ultrasonic pulse echo method using ultrasonic waves enter perpendicular to the surface of the roll/sheet to detect delamination, or at the discretion of the manufacturer, by way of passing.

5.2 During an inspection of the roll/sheet and block converters should move relative to each other so that the transducers are moved in parallel along or across the main direction of rolling of the roll/sheet, with a minimum area of coverage and maximum allowable step between adjacent scanning lines shown in table 1. When using the method, the reciprocating scanning minimum area coverage should be half of the values given in table 1. The relative scanning speed control process should not change by more than ±10%.


Table 1 — Levels of acceptance and the minimum area of coverage of the roll/sheet and the maximum distance between adjacent scanning lines

5.3 Longitudinal edges of the roll/sheet width not less than 15 mm should be 100% controlled by ultrasonic technique for detecting delamination, given the width of the edge, which optionally must be removed from the original coil/sheet before welding to detect defects with a minimum length of Lshown in the table 2.


Table 2 — Levels of acceptance and minimum detectable and the maximum size of the bundles on edges of coil/sheet

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