Some standard content:
ICS75.180.10
Registration No.: 6949—2000
Offshore Oil and Gas Industry Standard of the People's Republic of China SY/T10002—2000
Replaces SY/T10002-1996
idt API SPEC 2B: 1996
Specification for the Fabrication of Structural Steel Pipe2000-04-10 Issued
National Bureau of Petroleum and Chemical Industry
2000-10-01 Implementation
SY/T10002—2000
API Preface
Policy Statement
Scope
2 References
3 Definitions
4 Materials
5 Manufacturing
5.1 Overview
5.2 Welding Process Assessment
Qualification of Welders and Welding Operators
5.3
5.4 Longitudinal Seams
5.5 Circumferential Welds
6 Sizes and Tolerances
Diameter, Length and Wall Thickness ||tt ||6.3 Circumference
6.4 Straightness
7 Inspection and repair
Flash crack inspection
Non-destructive testing
Repair of parent material defects
8 Marking
Appendix A (marking record)
Supplementary requirements
Appendix B (standard appendix) Metric unit conversion table
Appendix C (suggestive appendix) Suggestions for ordering AFI2 steel pipes
SY/T10002—2000
In order to meet the needs of my country's offshore oil and gas resource development, China National Offshore Oil Corporation adopts the API SPEC 2B "Specification for the Fabrication cf Structural Steel Pipe》1996 edition, and revised the original Chinese offshore oil and gas industry standard SY/T10002-1996 "Structural Steel Pipe Manufacturing Specifications" which was equivalent to API SPEC 2B: 1990, and released it as a new offshore oil and gas industry standard.
In the revision, the inappropriate parts of the original compilation were also modified. In order to facilitate users to consult the original text, the arrangement of the chapters of this standard is the same as the original text and has not been changed. When the laws, regulations and provisions of other competent authorities of raw materials are involved in the design, construction and use of offshore oil and natural gas development projects, they shall be implemented in accordance with the corresponding laws, regulations and provisions promulgated by the government of the People's Republic of China or the competent government departments. The measurement units in this standard are mainly legal measurement units. That is, the legal measurement unit value is in front, and the corresponding value of the imperial unit is marked in brackets after it
. In order not to change the shape characteristics, constants and coefficients of the formulas and curves in the original standard, all those using imperial units shall continue to use imperial units. This standard was issued on April 10, 2000 and implemented on October 1, 2000. Appendix A and Appendix B of this standard are both standard attachments. Appendix C of this standard is a prompt appendix
This standard was proposed and managed by China National Offshore Oil Corporation
. U.S. Petroleum Production Research Center.
The drafting unit of this standard: China
The main drafter of this standard: Jia Xu
The chief examiner of this standard: Liu Jiming.
SY/T10002—2000
API Foreword
This specification is under the management of the Offshore Structure Standardization Committee of the American Petroleum Institute. The purpose of this specification is to provide standards for steel pipes suitable for offshore welded structures made of steel plates. This specification is effective from the date specified on the cover, but can be adopted at will from the date of distribution. This version has been rearranged, but no text has been modified.
Processors who wish to obtain an AP monogram license should request application information from the American Petroleum Institute Office at 1220L Street, Northwest, Washington D.C. 20X005, or purchase a comprehensive list of manufacturers approved to use the API monogram, order number C0X005. API publications are available to anyone who is willing to apply the specification. The Institute has made every effort to ensure the accuracy and reliability of the data in this specification. However, the Institute makes no representation, warranty, or guarantee regarding any API specification published and hereby expressly disclaims any obligation or liability for loss or damage resulting from the use of an AP specification or for any violation of any federal, state, or municipal regulation resulting from the use of an AP specification that may conflict with such regulation. Suggestions for revisions are welcome and may be submitted to the Director, Development and Production, American Petroleum Institute, 1220 L Street, NW, Washington, D.C. 20005
SY/T10002—2000
Policy Statement
API publications address only general issues. When specific issues are involved, local, state, and federal laws and regulations should be consulted.
API does not assume any obligation for employers, manufacturers, and suppliers to warn, properly train, or equip their employees and other personnel on the job regarding health and safety risks and preventive measures, nor does it assume any legal liability to local, state, or federal governments. Information on the safety and health risks associated with specific materials and processes and the appropriate preventive measures should be obtained from the employer, manufacturer, or supplier of the material or from the material safety data sheet. Nothing in this publication should be construed as granting any right, legal or otherwise, to make, sell, or use any method, apparatus, or product covered by any patent. Nor should anything in this publication be construed as exculpating any person from liability for infringement of any patent.
Ordinarily, API standards are reviewed and revised, re-approved, or revoked at least every five years. Occasionally, this review period may be extended for periods of up to two years. This publication shall remain in effect for a period of not more than five years from the date of publication as a current API standard unless an extension of validity is granted by reprinting. The status of this publication may be obtained from the API Editorial Office at (202) 682-8000. The API (1220 L Street, NW, Washington, DC 20005) Catalog of Publications and Materials is published annually and updated quarterly. This document was prepared in accordance with API standardization procedures which ensure proper notice and participation in the drafting process and is designated as an API standard. Questions concerning the interpretation of the content of this standard or comments and questions concerning the drafting process should be directed to the editorial director (see the title page of this document DC 20005). Requests for reprints or translations of all or parts of this document should also be addressed to the editorial director for approval. The Institute has made unconditional efforts to ensure the accuracy and reliability of the data contained in this specification for use by any person who wishes to implement it. However, the Institute makes no representations, warranties, or guarantees regarding any API specification published and hereby expressly disclaims any liability for loss or damage resulting from the use of this specification or for any violation of any federal, state, or municipal regulation. API assumes no obligation or liability for any violation of these regulations by any API specification. API standards are published for the purpose of promoting the widespread application of sound, reliable engineering and operating practices. They are not intended to exclude the application of sound engineering judgment regardless of when and where they are applied. The formulations and publications of API standards are not intended in any way to prohibit anyone from using any other standard. Any manufacturer of equipment or equipment bearing the API mark shall be solely responsible for the compliance of its products with the requirements of API specifications. The American Petroleum Institute does not represent, warrant or guarantee that these products do comply with the applicable API specifications. Specification for the Fabrication of Strnctural Steel Pipe1 ScopeSY/T 10002-2000Replaces SY/T10002—1996idt API SPEC 2B:19961.1 This specification applies to structural steel pipe formed from plate with longitudinal or circumferential butt welds suitable for the construction of welded structures having a common outside diameter equal to or greater than 355.6 mm (14 in.), a wall thickness equal to or greater than 9.5 mm (3/8 in.), and a nominal length up to 12.19 m (40 in.). Electric resistance welded (EI) or spiral furnace jointed pipe is not included in this specification. Steel parts manufactured to this specification are primarily used for pile materials and for major structural members that do not require internal reinforcement, including tubular frame connections. 1.2 Manufacturers who are required to mark their products in accordance with this specification with the A-mark shall submit to the American Petroleum Institute information and/or assessment results and obtain approval to ensure that the manufacturer is competent for the welding, inspection, nondestructive testing, and testing requirements specified or referenced in this specification.
2 Referencesbzxz.net
The following specifications and standards are part of this specification and have equivalent functions to this specification: ASIMA6-88 General Requirements for Structural Steel Plates Shau's, Shert Piling, and Bars from Steel Plates of Steel Sheet Rolling (General Requirements for Rullerd Steel Plates Shau's, Shert Piling, and Bars from Steel Plates of Steel Sheet Rolling ... Codh-Sieel): 3 Definitions
This standard uses the following definitions:
3.1 Fabricator: refers to an individual manufacturer, company or enterprise that performs the contract or agreement signed with the actual owner and processes structural steel pipes according to this specification.
3.2 Circumferential weld: a butt weld of a circle in a plane perpendicular to the longitudinal axis of the steel pipe: several sections of pipe are connected to form a pipe with a weld
3.3 Longitudinal weld (annual weld): a butt weld of a circle in a plane perpendicular to the longitudinal axis of the steel pipe. scum): a butt weld parallel to the axis of the steel pipe. 3.4 Manufacturer: refers to a company or enterprise that provides steel plates for manufacturing structural steel pipes. 3.5 Pile: generally refers to a cylindrical pipe that passes through the pile legs of an offshore platform and is driven into the seabed to receive vertical point loads and resist the direction of the direction. 3.6 Buyer: an individual, manufacturer, company or enterprise that signs a contract or agreement to purchase structural steel pipes processed in accordance with this specification. 3.7 Structural steel pipe: a cylindrical pipe with uniform wall thickness formed by steel plates and connected with longitudinal and circumferential butt welds.
Approved by the State Administration of Petroleum and Chemical Industry on April 10, 2000 200-10-01 Implementation
4 Materials
SY/T10002—2000
4.1 Steel pipes furnished in accordance with this specification shall be processed from steel plates specified by the purchaser. 4.2 The purchaser shall specify the grade and quality of the steel plates to be used. If the steel plates are furnished by the fabricator, the manufacturer's inspection certificate shall be provided and made available to the purchaser upon request.
All steel plates, including all portions cut to size from the entire sheet of steel produced by the original manufacturer, shall bear the manufacturer's identification number.
Note: When structural steel pipes are thick-walled sections used to make T, Y and/or K-type joints and are required to be free of interlayers and/or other internal defects, ultrasonic testing may be used as a supplementary requirement to the specified steel plate specifications, if required. 5 Fabrication
5.1 Overview
5.1.1 Steel pipes furnished in accordance with this specification are generally formed at temperatures below 204°C (400°F), i.e., low-temperature forming. For heat treated steel or steel produced by the thermomechanical control method (TMCP), medium temperature forming [temperature between 427°C (800°F) and 649°C (1200°F), or 10°C (50°C) below the tempering temperature for quenched and tempered steels] may be used if the forming process shows that the mechanical properties required by the original plate specification can be fully met under medium temperature forming conditions. High temperature forming (above the critical upper temperature limit) may also be used if the forming process fully meets the mechanical properties required by the original plate specification.
5.1.2 If the purchaser requires that the steel pipe be oriented in the original plate rolling direction during the forming process, SR1 of Appendix A may be specified and the steel pipe may be marked accordingly.
5.1.3 Welding
All welding work shall comply with the provisions of AWS DI.1. Submerged arc welding shall be used except for tack welds, root passes, and repair welds, which may be welded by other AWS approved welding methods. Welding rods and fluxes shall conform to the applicable AWS specifications and shall be selected to ensure that the welds meet the minimum strength and toughness requirements of the parent material: All welds shall be full penetration groove welds and shall be produced from node details prequalified in accordance with AWS D1.1 or other node shapes qualified by procedure qualification tests. If the WS specification requires that the impact energy obtained by the Charpy V-notch impact test of the welding rods and fluxes used at -18°C (0°F) is less than 28J (20ft·Ibs), Charpy impact specimens shall be cut from simulated product welds and tested in accordance with the provisions of Appendix I of AWS D1.1. The impact energy of the weld metal shall not be less than the above value.
All welding work shall comply with the minimum process standards of 3.6 of AWS D1.1. 5.2 Welding procedure qualification
It is formulated according to the requirements of AWS D11.
The welding process shall be in accordance with
As long as the process meets all the requirements of the prequalification conditions detailed in Appendix IV of AWS D 1.1 (joint details and filler metal, etc.), the processor may use a prequalified written welding procedure. If there are more stringent requirements for the Charpy V-notch toughness of the weld and/or heat-affected zone than those specified in 5.1.3 above, they can be found in SR2 of Appendix A. Qualification of non-personnel
5.3 Welders and welding operations
Welders and welding operators shall be qualified in accordance with the relevant provisions of Chapter 5 C or D of AWS D 1.1. Qualification of submerged arc welding operators may be carried out by radiography. 5.4 Longitudinal welds
The radial deviation of the butt edge of the longitudinal weld shall not exceed 3.2 mm (1/8 in). Unless the purchaser and the processor agree otherwise that the misalignment may be less than 90°, the longitudinal welds of adjacent pipe sections shall be staggered by at least 90°. 5.5 Girth Welds
If the girth welds are welded from both sides with a radial deviation exceeding 3.2 mm (1/8 in), the radial deviation of the girth weld butt edge shall not exceed 0.2T (T is the wall thickness) and shall not exceed a maximum of 6.4 mm (1/4 in). A deviation of 0.3T per girth weld may be permitted, up to a maximum of 9.5 mm (3/8 in), provided that the length of the local deviation is less than 8T and a transition zone with a 4:1 slope is deposited with weld metal within this range. The distance between adjacent girth welds shall not be less than the diameter of the pipe or 0.91 m (3), whichever is less. There shall not be more than two girth welds within any 3.05 m (10 ft) length of the pipe. 2
6 Dimensions and tolerances
6.1 Diameter, length and wall thickness
SY/T10002—2000
The diameter, length and wall thickness of the steel pipes provided in accordance with this specification shall be specified by the purchaser. The difference between the length of the steel pipe and the specified nominal length shall not exceed ±38.1mm (±11/2in) for every 3.05m (10ft). 6.2 Roundness
Non-roundness is the difference between the maximum and minimum outer diameters at any point in the length direction of the steel pipe. For steel pipes with a wall thickness of less than or equal to 50.8mm (2in), it shall not exceed 1% of its nominal diameter and shall not exceed 6.4mm (1/4in) at most. For steel pipes with a wall thickness exceeding 50.8mm (2in), the ratio of non-roundness to wall thickness shall not exceed 1:8. For steel pipes with a diameter exceeding 1220 mm (48 in), the maximum out-of-roundness is allowed to reach 12.7 mm (1/2 in) as long as the circumference tolerance is maintained within ±6.4 mm (±1/4 in). 6.3 Circumference
The outer circumference of any point along the length of the steel pipe should be within its nominal circumference.
6.4 Straightness
The maximum allowable straightness error within any 3.05m (10ft) length should be /2in) (take the smaller value of the two). For steel
pipes with a length exceeding 3.05m (10ft), the maximum straightness error of the entire length can be calculated according to the following formula, but the error within any 1219m (40ft) length should not exceed 9.5mm (3/8in). 18
6.5 Pipe ends
(total length,)
Unless otherwise specified, all pipe ends shall be cut into a 30°±25 (measured from a vertical line on the surface of the steel pipe) welding groove and leave a blunt edge of 1.6mm±0.8mm (1/16in±1/32in). The vertical deviation of the blunt edge surface to the longitudinal axis of the steel pipe shall not exceed 1.6mm (1/16in) per 0.3m (1ft) of diameter, and the maximum allowable deviation is 6.4mm (1/4in), which is measured across the end face of the steel pipe with a square and a ruler. 7 Inspection and repair
7.1 Inspection
Processing and acceptance shall be carried out in accordance with the provisions of Chapter 6 of AWS D1.1 to ensure compliance with the relevant requirements of Chapters 1 to 6 and Chapter 10 therein.
7.2 Inspection of welds
All welds shall be visually inspected from both the inside and outside surfaces. The weld appearance shall comply with the requirements of 3.6 of AWS D 1.1. 7.3 Nondestructive testing
Radiographic examination shall be carried out over 100% of the length of each girth weld and 10% of the length of each longitudinal weld (including the end) in accordance with the requirements of AWS D 1.1, Chapter 6 and 10.17.3. If necessary, radiographic examination may be carried out over a larger area in accordance with the provisions of SR3 of Appendix A. The fabricator shall be responsible for all radiographic examinations. 7.4 Repair of defects in parent material
All defects shall be further detected to determine their extent. For finished steel pipes, defects with a depth not exceeding 5% of the nominal wall thickness of each
specified and mechanical scratches with a depth not exceeding 5% of the nominal wall thickness or 1.6 mm1/16 in) found in the parent material may not be treated. Defects exceeding the above limits shall be ground to the sound metal body, and the pits shall be streamlined. The reduced thickness of the ground area shall not exceed 7% of the nominal wall thickness, but in no case shall it exceed 3.2mm (1/8in). Welding repairs may be made for defects of rolled steel plates whose depth exceeds the above limits but does not exceed 20% of the nominal wall thickness. Welding repairs are not allowed for defects whose depth exceeds 20% of the nominal wall thickness, or whose length and/or width exceeds 20% of the nominal diameter. Pipes made from non-rolled steel plates shall not be welded without the special approval of the purchaser. 8 Marking
The processor shall mark the steel pipes processed in accordance with this specification in accordance with the following provisions. 4
SY/T 10002—2000
On the inner surface of each end of each steel pipe, the following content shall be sprayed with a template with a font height of not less than 25.4mm(1ir): a) Name of the manufacturer;
) API logo shall be used for products that meet the requirements of the specification and shall only be used by licensed processors;) API 2B:
d) Specific industrial designation of steel plate used for ASTM or LE steel pipe:e) Nominal outside diameter:
)) Nominal wall thickness;
g) Specified supplementary requirements, such as S1tI, SR2 and/or SR3: Introduction
SY/T10002-2000
Appendix A
(Standard Appendix)
Supplementary requirements
When otherwise specified in the order, the following supplementary requirements shall apply, SR1 Orientation in rolling direction of steel plate
SR1.1 When the steel pipe is formed, the axis of the steel pipe shall be oriented longitudinally or transversely (circumferentially) relative to the final rolling direction of the steel plate as specified in the order and in accordance with the following measures.
SR1.2 Steel pipes processed in accordance with the supplementary requirements of this clause shall be marked with \S--1L\ or \S-IT\ adjacent to \AFI 2B\ in accordance with the provisions of e} and ) of Chapter 8, see Figure AI
Steel Plate Rolling Direction
Steel Plate Rolling Direction
Longitudinal \S-IL\
Transverse \S-IT\
Figure A1 Orientation in Steel Plate Rolling Direction
SR2 Notch Toughness Test
Notch toughness test shall be carried out as a requirement for the welding procedure qualification test. The specimens used for the welding procedure qualification test shall be welded and tested in accordance with the provisions of Section 5.10.1 of AWSD1.1. Charpy V-notch test details shall be taken from the white weld and heat affected zone in accordance with the requirements of Appendix II of AWSD1.1. The test temperature, notch position (if different from the AS provisions) and the value of minimum average energy shall be subject to the instructions of the purchase order. Steel pipes shall be marked in accordance with the requirements of Chapter 8. SR3100% Radiographic Inspection
In addition to the 100% radiographic inspection of girth welds in accordance with 7.3, each designated longitudinal weld shall also be radiographically inspected over its entire length. Steel pipes inspected in accordance with the supplementary requirements of this clause shall be marked in accordance with the requirements of Chapter 8). 6
SY/T10002—2000
Appendix B
(Standard Appendix)
Metric Unit Conversion Table
When converting the calculation units used in this article into international units (SI), the following equivalent corresponding values may be used: Table B1 Metric Unit Conversion Table
Values used in this article
1/16in
11/2in||tt ||400°F
800°F
1200°F
20ft·Ihs
Corresponding value of International System of Units
427℃
SY/T10002—2000
Appendix C
(Suggestive Appendix)
Suggestions on ordering API2B steel pipes
When ordering steel pipes manufactured in accordance with API SPEC2B When making an order, the purchaser shall specify the following on the order: Specification
ASTM (or other industry standard) marking of the steel plate Delivery date and shipping requirements
The purchaser shall specify the following optional requirements
Mill inspection certificate of the steel plate
Tube end processing (if not using the 30° standard groove, the processing requirements must be specified) SRI
Rolling direction
Longitudinal - "s"
Notch toughness (specify test temperature and minimum energy requirements) 100% X-ray inspection (
Node thick wall section quality assurance)
As required
Nominal length, wall thickness and outside diameter
Specification/grade/supplementary requirements
As required
Note: Nothing in this specification should be interpreted as the committee favoring any optional requirement. In selecting these requirements, the purchaser should base his decision on his own experience and the intended use of the steel pipe.4 Repair of defects in parent material
Each defect shall be further detected to determine its extent. For finished steel pipes, defects with a depth not exceeding 5% of the nominal wall thickness per
specified and mechanical scratches with a depth not exceeding 5% of the nominal wall thickness or 1.6mm1/16in) found on the parent material may not be treated. Defects exceeding the above limits shall be ground to the sound metal body, and the pits shall be streamlined. The thickness reduction of the ground area shall not exceed 7% of the nominal wall thickness, but in any case shall not exceed 3.2mm (1/8in). Welding repairs may be performed on rolled steel plates if the depth of defects exceeds the above limits but does not exceed 20% of the nominal wall thickness. Welding repairs are not allowed for defects with a depth exceeding 20% of the nominal wall thickness, or defects with a length and/or width exceeding 20% of the nominal diameter. Pipes made of non-rolled steel plates shall not be repaired by welding without the special approval of the buyer. 8 Marking
The processor shall mark the steel pipes processed according to this specification in accordance with the following provisions. 4
SY/T 10002—2000
On the inner surface of each end of each steel pipe, the following content shall be sprayed with a template with a font height of not less than 25.4mm(1ir): a) Name of the manufacturer;
) API monogram shall be applied to products that meet the requirements of the specification and shall only be used by processors with a license;) API 2B:
d) Specific industrial designation of steel plate used for ASTM or LE steel pipe:e) Nominal outside diameter:
)) Nominal wall thickness;
g) Specified supplementary requirements, such as S1tI, SR2 and/or SR3: Introduction
SY/T10002-2000
Appendix A
(Standard Appendix)
Supplementary requirements
When otherwise specified in the order, the following supplementary requirements shall apply, SR1 Orientation in rolling direction of steel plate
SR1.1 When the steel pipe is formed, the axis of the steel pipe shall be oriented longitudinally or transversely (circumferentially) relative to the final rolling direction of the steel plate as specified in the order and in accordance with the following measures.
SR1.2 Steel pipes processed in accordance with the supplementary requirements of this clause shall be marked with \S--1L\ or \S-IT\ adjacent to \AFI 2B\ in accordance with the provisions of e} and ) of Chapter 8, see Figure AI
Steel Plate Rolling Direction
Steel Plate Rolling Direction
Longitudinal \S-IL\
Transverse \S-IT\
Figure A1 Orientation in Steel Plate Rolling Direction
SR2 Notch Toughness Test
Notch toughness test shall be carried out as a requirement for the welding procedure qualification test. The specimens used for the welding procedure qualification test shall be welded and tested in accordance with the provisions of Section 5.10.1 of AWSD1.1. Charpy V-notch test details shall be taken from the white weld and heat affected zone in accordance with the requirements of Appendix II of AWSD1.1. The test temperature, notch position (if different from the AS provisions) and the value of minimum average energy shall be subject to the instructions of the purchase order. Steel pipes shall be marked in accordance with the requirements of Chapter 8. SR3100% Radiographic Inspection
In addition to the 100% radiographic inspection of girth welds in accordance with 7.3, each designated longitudinal weld shall also be radiographically inspected over its entire length. Steel pipes inspected in accordance with the supplementary requirements of this clause shall be marked in accordance with the requirements of Chapter 8). 6
SY/T10002—2000
Appendix B
(Standard Appendix)
Metric Unit Conversion Table
When converting the calculation units used in this article into international units (SI), the following equivalent corresponding values may be used: Table B1 Metric Unit Conversion Table
Values used in this article
1/16in
11/2in||tt ||400°F
800°F
1200°F
20ft·Ihs
Corresponding value of International System of Units
427℃
SY/T10002—2000
Appendix C
(Suggestive Appendix)
Suggestions on ordering API2B steel pipes
When ordering steel pipes manufactured in accordance with API SPEC2B When making an order, the purchaser shall specify the following on the order: Specification
ASTM (or other industry standard) marking of the steel plate Delivery date and shipping requirements
The purchaser shall specify the following optional requirements
Mill inspection certificate of the steel plate
Tube end processing (if not using the 30° standard groove, the processing requirements must be specified) SRI
Rolling direction
Longitudinal - "s"
Notch toughness (specify test temperature and minimum energy requirements) 100% X-ray inspection (
Node thick wall section quality assurance)
As required
Nominal length, wall thickness and outside diameter
Specification/grade/supplementary requirements
As required
Note: Nothing in this specification should be interpreted as the committee favoring any optional requirement. In selecting these requirements, the purchaser should base his decision on his own experience and the intended use of the steel pipe.4 Repair of defects in parent material
Each defect shall be further detected to determine its extent. For finished steel pipes, defects with a depth not exceeding 5% of the nominal wall thickness per
specified and mechanical scratches with a depth not exceeding 5% of the nominal wall thickness or 1.6mm1/16in) found on the parent material may not be treated. Defects exceeding the above limits shall be ground to the sound metal body, and the pits shall be streamlined. The thickness reduction of the ground area shall not exceed 7% of the nominal wall thickness, but in any case shall not exceed 3.2mm (1/8in). Welding repairs may be performed on rolled steel plates if the depth of defects exceeds the above limits but does not exceed 20% of the nominal wall thickness. Welding repairs are not allowed for defects with a depth exceeding 20% of the nominal wall thickness, or defects with a length and/or width exceeding 20% of the nominal diameter. Pipes made of non-rolled steel plates shall not be repaired by welding without the special approval of the buyer. 8 Marking
The processor shall mark the steel pipes processed according to this specification in accordance with the following provisions. 4
SY/T 10002—2000
On the inner surface of each end of each steel pipe, the following content shall be sprayed with a template with a font height of not less than 25.4mm(1ir): a) Name of the manufacturer;
) API monogram shall be applied to products that meet the requirements of the specification and shall only be used by processors with a license;) API 2B:
d) Specific industrial designation of steel plate used for ASTM or LE steel pipe:e) Nominal outside diameter:
)) Nominal wall thickness;
g) Specified supplementary requirements, such as S1tI, SR2 and/or SR3: Introduction
SY/T10002-2000
Appendix A
(Standard Appendix)
Supplementary requirements
When otherwise specified in the order, the following supplementary requirements shall apply, SR1 Orientation in rolling direction of steel plate
SR1.1 When the steel pipe is formed, the axis of the steel pipe shall be oriented longitudinally or transversely (circumferentially) relative to the final rolling direction of the steel plate as specified in the order and in accordance with the following measures.
SR1.2 Steel pipes processed in accordance with the supplementary requirements of this clause shall be marked with \S--1L\ or \S-IT\ adjacent to \AFI 2B\ in accordance with the provisions of e} and ) of Chapter 8, see Figure AI
Steel Plate Rolling Direction
Steel Plate Rolling Direction
Longitudinal \S-IL\
Transverse \S-IT\
Figure A1 Orientation in Steel Plate Rolling Direction
SR2 Notch Toughness Test
Notch toughness test shall be carried out as a requirement for the welding procedure qualification test. The specimens used for the welding procedure qualification test shall be welded and tested in accordance with the provisions of Section 5.10.1 of AWSD1.1. Charpy V-notch test details shall be taken from the white weld and heat affected zone in accordance with the requirements of Appendix II of AWSD1.1. The test temperature, notch position (if different from the AS provisions) and the value of minimum average energy shall be subject to the instructions of the purchase order. Steel pipes shall be marked in accordance with the requirements of Chapter 8. SR3100% Radiographic Inspection
In addition to the 100% radiographic inspection of girth welds in accordance with 7.3, each designated longitudinal weld shall also be radiographically inspected over its entire length. Steel pipes inspected in accordance with the supplementary requirements of this clause shall be marked in accordance with the requirements of Chapter 8). 6
SY/T10002—2000
Appendix B
(Standard Appendix)
Metric Unit Conversion Table
When converting the calculation units used in this article into international units (SI), the following equivalent corresponding values may be used: Table B1 Metric Unit Conversion Table
Values used in this article
1/16in
11/2in||tt ||400°F
800°F
1200°F
20ft·Ihs
Corresponding value of International System of Units
427℃
SY/T10002—2000
Appendix C
(Suggestive Appendix)
Suggestions on ordering API2B steel pipes
When ordering steel pipes manufactured in accordance with API SPEC2B When making an order, the purchaser shall specify the following on the order: Specification
ASTM (or other industry standard) marking of the steel plate Delivery date and shipping requirements
The purchaser shall specify the following optional requirements
Mill inspection certificate of the steel plate
Tube end processing (if not using the 30° standard groove, the processing requirements must be specified) SRI
Rolling direction
Longitudinal - "s"
Notch toughness (specify test temperature and minimum energy requirements) 100% X-ray inspection (
Node thick wall section quality assurance)
As required
Nominal length, wall thickness and outside diameter
Specification/grade/supplementary requirements
As required
Note: Nothing in this specification should be interpreted as the committee favoring any optional requirement. In selecting these requirements, the purchaser should base his decision on his own experience and the intended use of the steel pipe.Steel pipes inspected by radiography in accordance with the supplementary requirements of this article shall be marked in accordance with the requirements of Chapter 8). 6
SY/T10002—2000
Appendix B
(Standard Appendix)
Metric Unit Conversion Table
When converting the calculation units used in this article into international units (SI), the following equivalent corresponding values can be used: Table B1 Metric Unit Conversion Table
Values used in this article
1/16in
11/2in||tt ||400°F
800°F
1200°F
20ft·Ihs
Corresponding value of International System of Units
427℃
SY/T10002—2000
Appendix C
(Suggestive Appendix)
Suggestions on ordering API2B steel pipes
When ordering steel pipes manufactured in accordance with API SPEC2B When making an order, the purchaser shall specify the following on the order: Specification
ASTM (or other industry standard) marking of the steel plate Delivery date and shipping requirements
The purchaser shall specify the following optional requirements
Mill inspection certificate of the steel plate
Tube end processing (if not using the 30° standard groove, the processing requirements must be specified) SRI
Rolling direction
Longitudinal - "s"
Notch toughness (specify test temperature and minimum energy requirements) 100% X-ray inspection (
Node thick wall section quality assurance)
As required
Nominal length, wall thickness and outside diameter
Specification/grade/supplementary requirements
As required
Note: Nothing in this specification should be interpreted as the committee favoring any optional requirement. In selecting these requirements, the purchaser should base his decision on his own experience and the intended use of the steel pipe.Steel pipes inspected by radiography in accordance with the supplementary requirements of this article shall be marked in accordance with the requirements of Chapter 8). 6
SY/T10002—2000
Appendix B
(Standard Appendix)
Metric Unit Conversion Table
When converting the calculation units used in this article into international units (SI), the following equivalent corresponding values can be used: Table B1 Metric Unit Conversion Table
Values used in this article
1/16in
11/2in||tt ||400°F
800°F
1200°F
20ft·Ihs
Corresponding value of International System of Units
427℃
SY/T10002—2000
Appendix C
(Suggestive Appendix)
Suggestions on ordering API2B steel pipes
When ordering steel pipes manufactured in accordance with API SPEC2B When making an order, the purchaser shall specify the following on the order: Specification
ASTM (or other industry standard) marking of the steel plate Delivery date and shipping requirements
The purchaser shall specify the following optional requirements
Mill inspection certificate of the steel plate
Tube end processing (if not using the 30° standard groove, the processing requirements must be specified) SRI
Rolling direction
Longitudinal - "s"
Notch toughness (specify test temperature and minimum energy requirements) 100% X-ray inspection (
Node thick wall section quality assurance)
As required
Nominal length, wall thickness and outside diameter
Specification/grade/supplementary requirements
As required
Note: Nothing in this specification should be interpreted as the committee favoring any optional requirement. In selecting these requirements, the purchaser should base his decision on his own experience and the intended use of the steel pipe.
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