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GB/T 46599-2025Steel pipe for gaseous hydrogen storage and transportation pipelines (English PDF)

氢气储输管道用钢管

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 46599-2025 is the English-translated version of 氢气储输管道用钢管.

GB/T 46599-2025 is the Chinese standard "Steel pipe for gaseous hydrogen storage and transportation pipelines".

Its scope clause reads: This document specifies the naming method, ordering details, manufacturing process, technical requirements, testing methods, and inspection procedures for steel pipes used in hydrogen storage and transportation pipelines.

Inspection rules, packaging, marking, coating, quality certificate and loading. This document applies to straight seam submerged arc welding of hydrogen for onshore storage and transportation pipelines with purity conforming to GB/T 3634.1 or GB/T 3634.2.

(SAWL) steel pipes, spiral submerged arc welded (SAWH) steel pipes, high frequency welded (HFW) steel pipes, and seamless (SMLS) steel pipes (hereinafter referred to as "steel pipes") Tube").

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Document preview — GB/T 46599-2025

National Standard of the People's Republic of China

ICS: 77.140.75
Classification: H 48

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3 Terms and Definitions
4.Abbreviations 3.
5.Brand Naming Method
6.Order details
7 Manufacturing process
8 Technical Requirements
9.Test Methods
10 Inspection Rule
11 Packaging, marking, coating, certificate of quality and loading
Appendix A (Normative) Steel Pipe Manufacturing Process Qualification
Appendix B (Normative) Welding Procedure Qualification
Appendix C (Normative) Treatment of Surface Defects and Imperfections
Appendix D (Normative) Samples and specimens for mechanical and technological property tests
Appendix E (Normative) Evaluation Method for Banded Microstructure of Acicular Ferritic Steel Pipes
References

1 Scope

This document specifies the naming method, ordering details, manufacturing process, technical requirements, testing methods, and inspection procedures for steel pipes used in hydrogen storage and transportation pipelines.

Inspection rules, packaging, marking, coating, quality certificate and loading.

This document applies to straight seam submerged arc welding of hydrogen for onshore storage and transportation pipelines with purity conforming to GB/T 3634.1 or GB/T 3634.2.

(SAWL) steel pipes, spiral submerged arc welded (SAWH) steel pipes, high frequency welded (HFW) steel pipes, and seamless (SMLS) steel pipes (hereinafter referred to as "steel pipes")

Tube").

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 223.5 Determination of Acid-Soluble Silicon and Total Silicon Content in Iron and Steel - Reduced Molybdate Spectrophotometric Method

GB/T 223.9 Determination of Aluminum Content in Iron and Steel and Alloys - Chromium Blue S Spectrophotometric Method

GB/T 223.11 Determination of Chromium Content in Iron and Steel and Alloys - Visual Titration or Potentiometric Titration

GB/T 223.14 Chemical Analysis Methods for Iron and Steel Alloys - Determination of Vanadium Content by Tantalum Reagent Extraction Spectrophotometry

GB/T 223.19 Chemical Analysis Methods for Iron and Steel Alloys - Determination of Copper Content by Neo-Copper-Chloroform Extraction Spectrophotometric Method

GB/T 223.23 Determination of Nickel Content in Iron and Steel and Alloys - Dimethylglyoxime Spectrophotometric Method

GB/T 223.26 Determination of molybdenum content in iron and steel and their alloys - Thiocyanate spectrophotometric method

GB/T 223.37 Determination of Nitrogen Content in Iron and Steel and Alloys - Distillation Separation of Indophenol Blue Spectrophotometric Method

GB/T 223.40 Determination of Niobium Content in Iron and Steel and Alloys - Chlorsulfonylphenol S Spectrophotometric Method

GB/T 223.59 Determination of phosphorus content in iron and steel and their alloys - Bismuth-phosphomolybdenum blue spectrophotometric method and antimony-phosphomolybdenum blue spectrophotometric method

GB/T 223.63 Determination of Manganese Content in Iron and Steel and Alloys - Sodium (Potassium) Periodate Spectrophotometric Method

GB/T 223.77 Chemical Analysis Methods for Iron and Steel Alloys - Determination of Calcium Content by Flame Atomic Absorption Spectrometry

GB/T 223.78 Chemical Analysis Methods for Iron and Steel Alloys - Determination of Boron Content by Direct Spectrophotometry Using Curcumin

GB/T 223.82 Determination of Hydrogen Content in Iron and Steel - Inert Gas Melting-Thermal Conductivity or Infrared Method

GB/T 223.84 Determination of Titanium Content in Iron and Steel and Alloys - Diantipyrine Methane Spectrophotometric Method

GB/T 223.85 Determination of sulfur content in iron and steel and their alloys by infrared absorption method after combustion in an induction furnace

GB/T 223.86 Determination of total carbon content in iron and steel and their alloys by infrared absorption method after combustion in an induction furnace

GB/T 228.1 Metallic materials - Tensile testing - Part 1.Test method at room temperature

GB/T 229 Metallic materials Charpy impact test method

GB/T 241 Hydraulic test method for metallic tubes

GB/T 246 Test method for flattening of metallic tubes

GB/T 2102 Acceptance, Packaging, Marking and Quality Certificate of Steel Pipes

GB/T 2650 Destructive testing of welds in metallic materials - Impact test

GB/T 2651 Destructive testing of welds in metallic materials - Transverse tensile test

GB/T 2975 Sampling Location and Specimen Preparation for Mechanical Property Testing of Steel and Steel Products

GB/T 47090 | GB/T 43105 | GB/T 40316 | GB/T 13295 | GB/T 12772 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 52 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 46599

Edition	Title	Revision	Status
GB/T 46599-2025	Steel pipe for gaseous hydrogen storage and transportation pipeline	current edition	Current

This page sells the current edition, GB/T 46599-2025. Earlier editions are listed for reference only.

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