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GB/T 34204-2025 English PDF

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Q: Should I purchase the latest version GB/T 34204-2025?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 34204-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$1799.00 · In stock
Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34204-2025: Coiled tubing
Status: Valid

GB/T 34204: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34204-2025	1799	Add to Cart	10 days	Coiled tubing	Valid
GB/T 34204-2017	1239	Add to Cart	8 days	Coiled tubing	Valid

Similar standards

GB/T 51033 GB/T 50082 GB/T 34204

Basic data

Standard ID: GB/T 34204-2025 (GB/T34204-2025)
Description (Translated English): Coiled tubing
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H48
Classification of International Standard: 77.140.75
Word Count Estimation: 90,982
Date of Issue: 2025-08-01
Date of Implementation: 2026-02-01
Older Standard (superseded by this standard): GB/T 34204-2017
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB/T 34204-2025: Coiled tubing

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT34204-2025
ICS 77.140.75 CCSH48 National Standard of the People's Republic of China Replaces GB/T 34204-2017 Coiled Tubing Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 3 4 Symbols and abbreviations 5 4.1 Symbols 5 4.2 Abbreviations 6 5 Order Contents 6 5.1 Contents that the purchaser should provide 6 5.2 Contents that the buyer can choose 6 5.3 Internal pipe/cable coiled tubing 8 6 Technical Requirements 8 6.1 Material Requirements 8 6.2 Manufacturing Process 8 6.3 Steel grade, designation and chemical composition 11 6.4 Tensile properties 15 6.5 Hardness 17 6.6 Impact 18 6.7 Flatten 18 6.8 Flaring 19 6.9 Weld Macro 20 6.10 Metallography 20 6.11 Fatigue test 20 6.12 Crush Test 20 6.13 Corrosion test of stainless steel coiled tubing 20 6.14 Anti-sulfur coiled tubing corrosion test 20 6.15 Hydrostatic Pressure 21 6.16 Diameter 21 6.17 Length, dimensions and weight per unit length 21 6.18 Weight per unit length 23 7 Inspection and testing 23 7.1 Chemical composition 23 7.2 Mechanical properties 24 7.3 Macroscopic view of weld seams 27 7.4 Metallographic Examination 27 7.5 Fatigue test 27 7.6 Crush test 27 7.7 Stainless Steel Coiled Tubing Corrosion Test 27 7.8 Anti-sulfur coiled tubing corrosion test 29 7.9 Hydrostatic pressure test 29 7.10 Diameter test 30 7.11 Length and size inspection 30 7.12 Invalid Test 30 7.13 Retest and determination 31 7.14 Inspection by the Buyer 33 8 Non-destructive Testing (NDT) 33 8.1 General Principles 33 8.2 Verification by comparison with standard sample 33 8.3 Personnel Qualifications 33 8.4 Testing standards 33 8.5 Nondestructive testing methods 34 8.6 Radiographic testing of steel strip butt welds and pipe-to-pipe butt welds 34 8.7 Other non-destructive testing of welds 36 8.8 Ultrasonic and electromagnetic testing of longitudinal welds 36 8.9 Magnetic Particle and Liquid Penetrant Testing 38 8.10 Handling of defects and imperfections 38 9 Logo 39 9.1 General Principles 39 9.2 Flag Order 39 9.3 Length 39 10 Packaging and Protection 39 10.1 Coating 39 10.2 Protection 39 10.3 Transport reel 40 11 File 40 11.1 General requirements 40 11.2 Quality Certificate 40 11.3 Record keeping 40 Appendix A (Normative) Welding Procedure Qualification for Steel Strip Butt Welding, Pipe-to-Pipe Butt Welding and Union Butt Welding Appendix B (Normative) Pipe-to-pipe butt welding requirements 47 Appendix C (Normative) Minimum elongation after fracture 48 Appendix D (Informative) Coiled Tubing Full-Scale Fatigue Test Method 57 Appendix E (Normative) Dimensions of ball gauges and clearances from the inner surface of steel pipes 61 Appendix F (Normative) Dimensions, weight per unit length and hydrostatic test pressure 66 Appendix G (Normative) Buyer Inspection 76 Appendix H (Normative) Supplementary Nondestructive Testing Requirements 77 Appendix I (Informative) Coiled Tubing Transport Reel 80 Reference 82 Figure 1 Full cross-section specimen 24 Figure 2 Longitudinal arc specimen 24 Figure 3 Sampling position and direction of longitudinal arc specimen 24 Figure 4 Full wall thickness hardness test indentation position 25 Figure 5 NDT comparison standard 37 Figure A.1 Guided bending test specimen 44 Figure A.2 Bending die for guided bending test 44 Figure A.3 Schematic diagram of union macro test specimen 45 Figure D.1 Coiled tubing fatigue testing machine 57 Figure D.2 Bending die structure 58 Figure D.3 Sectional structure of bending die 58 Figure D.4 Specimen straightness measurement method 58 Figure I.1 Schematic diagram of transport reel and shift fork 80 Table 1 Symbols and descriptions 5 Table 2 Abbreviations and Explanations 6 Table 3 Information to be provided by the purchaser 6 Table 4 Requirements that can be selected by the purchaser 7 Table 5 Scrape groove depth 10 Table 6 Chemical composition of carbon steel and alloy steel coiled tubing 11 Table 7 Chemical composition of quenched and tempered coiled tubing 12 Table 8 Chemical composition of sulfur-resistant coiled tubing 12 Table 9 Common stainless steel coiled tubing grades and unified digital codes and their chemical compositions 13 Table 10 Tensile properties of carbon steel and alloy steel coiled tubing 15 Table 11 Tensile properties of stainless steel coiled tubing 16 Table 12 Hardness 17 Table 13 Impact Absorption Energy 18 Table 14 Distance between two plates for flattening test 18 Table 15 Intergranular corrosion test acceptance requirements 20 Table 16 Acceptance requirements for resistance to hydrogen-induced cracking 21 Table 17 Acceptance requirements for sulfide stress development (SSC) 21 Table 18 Permissible deviation of outer diameter 22 Table 19 Wall thickness tolerance 22 Table 20 Variation of wall thickness of adjacent steel strips 23 Table 21 4% Metal Wire Image Quality Meter 35 Table 22 2% Metal Wire Image Quality Meter 35 Table 23 Qualified Limit 37 Table 24 Record keeping 41 Table A.1 Guided bending test bend die dimensions 45 Table C.1 Elongation after fracture 48 Table D.1 Bend die radius corresponding to typical pipe diameter specimens 59 Table E.1 Ball gauge dimensions and clearance from the inner surface of the steel pipe 61 Table F.1 Steel pipe dimensions, unit length weight and hydrostatic test pressure (SI) 66 Table I.1 Ratio of reel diameter to steel pipe diameter Table I.2 Reel fork dimensions 81 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 34204-2017 Coiled Tubing. Compared with GB/T 34204-2017, except for structural adjustments and editorial changes, In addition to the dynamic, the main technical changes are as follows. --- Added the content of built-in pipe/cable coiled tubing (see 5.3); --- Added stainless steel coiled tubing products and related requirements (see Chapter 6 and Chapter 7); --- Added CT120~CT150 steel grade annealed coiled tubing products and related requirements (see Chapter 6 and Chapter 7); --- Added CT90Q~CT150Q steel grade quenched and tempered coiled tubing products and related requirements (see Chapter 6 and Chapter 7); --- Added CT70S~CT120S, CT70SS~CT110SS steel grade sulfur-resistant coiled tubing products and related requirements (see Section 6 Chapter 7); --- Added coiled tubing fatigue test (see 6.11, 7.5 and Appendix D); --- Added coiled tubing collapse test (see 6.12 and 7.6); --- Added stainless steel coiled tubing corrosion test (see 6.13 and 7.7); --- Added anti-sulfur coiled tubing corrosion test (see 6.14 and 7.8); --- Added the dimensions of the coiled tubing (see 6.17.2 and Appendix F); --- Changed the calculation formula of unit length weight (see 6.18, 8.5 of the.2017 edition); --- Added welding procedure qualification for union butt joints (see A.2.4). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Iron and Steel Association. This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183). This document was drafted by. China National Petroleum Corporation Baoshi Pipe Industry Co., Ltd. (National Oil and Gas Pipe Engineering Technology Research Center), China Oil and Gas Technology Research Institute of Changqing Oilfield Branch of China National Petroleum Corporation, Fujian Qingtuo Special Steel Technology Research Co., Ltd., PetroChina Jiang Han Machinery Research Institute Co., Ltd., Sinopec Jianghan Petroleum Engineering Co., Ltd. Shale Gas Exploitation Technology Service Company, Shougang Group Co., Ltd., Karamay Jianye Energy Co., Ltd., CNPC National Oil and Gas Pipe Engineering Technology Research Center Co., Ltd., Metallurgical Industry Information Information Standards Research Institute. The main drafters of this document are. Bi Zongyue, Li Hongbin, Tian Wei, Kong Qingmao, Liu Shoujun, Zhang Guofeng, Niu Tao, Liu Qing, Li Qi, Zhang Jingang, Yang Xudong, Shi Xianyun, Zhang Fuqiang, Dai Xiaoli, Sun Ruihua, Yu Han, Xiao Shuqin, Wang Haitao, Wei Yaming, Xian Linyun, Zhu Shaohua, Zhao Kun, Liu Haizhang, Wen Hongwei, Yuan Qingying, Song Haihui, Bai Xiaohong, and Xue Jianzhong. This document was first published in.2017 and this is the first revision. Coiled Tubing

1 Scope

This document specifies the ordering content, technical requirements, inspection and testing, non-destructive testing, marking, packaging and protection, and documentation of coiled tubing. This document applies to the ordering, manufacturing, inspection and acceptance of carbon steel, alloy steel and stainless steel coiled tubing (hereinafter referred to as "steel tubing").

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 222 Permissible deviations of chemical composition of finished steel products GB/T 223.5 Determination of acid-soluble silicon and total silicon content of iron and steel - Reduced molybdenum silico-siliconate spectrophotometric method GB/T 223.9 Iron, steel and alloys—Determination of aluminum content—Chrome azurol S spectrophotometric method GB/T 223.11 Determination of chromium content in steel and alloys - Visual titration or potentiometric titration method GB/T 223.12 Methods for chemical analysis of iron, steel and alloys - Sodium carbonate separation-diphenylcarbazide photometric method for the determination of chromium content GB/T 223.14 Chemical analysis of iron, steel and alloys - Tantalum extraction spectrophotometric method for the determination of vanadium content GB/T 223.17 Chemical analysis methods for iron, steel and alloys - Diantipyryl methane photometric method for the determination of titanium content GB/T 223.18 Methods for chemical analysis of iron, steel and alloys - Sodium thiosulfate separation-iodine titration method for the determination of copper content GB/T 223.19 Methods for chemical analysis of iron, steel and alloys - Determination of copper content by the new cuproline-chloroform extraction spectrophotometric method GB/T 223.23 Iron, steel and alloys - Determination of nickel content - Dimethylglyoxime spectrophotometric method GB/T 223.25 Methods for chemical analysis of iron, steel and alloys - Dimethylglyoxime gravimetric method for the determination of nickel content GB/T 223.26 Iron, steel and alloys—Determination of molybdenum content—Thiocyanate spectrophotometric method GB/T 223.28 Methods for chemical analysis of iron, steel and alloys - α-Benzoin oxime gravimetric method for the determination of molybdenum content GB/T 223.29 Iron, steel and alloys - Determination of lead content - Carrier precipitation-xylenol orange spectrophotometric method GB/T 223.30 Chemical analysis methods for iron, steel and alloys - Determination of p-bromomandelic acid by precipitation and spectrophotometry - Arsenazo III Zirconium content GB/T 223.31 Iron, steel and alloys - Determination of arsenic content - Separation by distillation - Molybdenum blue spectrophotometric method GB/T 223.36 Methods for chemical analysis of iron, steel and alloys - Separation by distillation - Neutralization titration method for the determination of nitrogen content GB/T 223.37 Iron, steel and alloys - Determination of nitrogen content - Indigo blue spectrophotometric method using distillation separation GB/T 223.38 Chemical analysis methods for iron, steel and alloys - Ion exchange separation - Gravimetric method for the determination of niobium content GB/T 223.40 Iron, steel and alloys—Determination of niobium content—Chlorosulfonylphenol S spectrophotometric method GB/T 223.43 Iron, steel and alloys - Determination of tungsten content - Gravimetric and spectrophotometric methods GB/T 223.47 Chemical analysis methods for iron, steel and alloys - Molybdenum blue photometric method with support precipitation for the determination of antimony content GB/T 223.50 Chemical analysis of steel and alloys - Determination by direct photometry with phenylfluorone-cetyltrimethylammonium bromide Tin amount GB/T 223.59 Iron, steel and alloys - Determination of phosphorus content - Bismuth phosphomolybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method GB/T 223.60 Iron, steel and alloys - Determination of silicon content - Gravimetric method GB/T 223.62 Methods for chemical analysis of iron, steel and alloys - Determination of phosphorus content - Spectrophotometric method with butyl acetate extraction ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34204-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34204-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 34204-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34204-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 34204-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 34204-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.