GB/T 17268-2020Non-refillable steel welded cylinders for industrial use (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009:

This standard replaces GB/T 17268-2009 "Industrial Non-refillable Welded Steel Cylinders", compared with GB/T 17268-2009, except for

The main technical changes outside of the editorial modification are as follows:

---Modified the scope of application of the standard (see Chapter 1, Chapter 1 of the:2009 edition);

---Modified the requirements for bottle body materials and welding materials (see 6:1:1, 6:1:3, 6:1:1, 6:1:3 of the:2009 edition);

---Added the welding method requirements for the pressure welding seam connecting the valve seat and the cylinder body (see 9:2:3);

---Added material verification test and wall thickness measurement requirements (see 10:1, 10:3:1);

---Modified the requirements of the air pressure test (see 10:2:2, 10:1:2 of the:2009 edition);

---Added the artificial aging requirements for the water pressure blasting test sample bottle (see 10:3:3:1);

---Modified the welding procedure qualification (see Appendix B, Appendix B of the:2009 edition);

---Modified the welder examination rules (see Appendix C, Appendix C of the:2009 edition);

--- Added Appendix D "Yield Point Extension" (see Appendix D):

This standard uses the redrafting method to refer to the edition of ISO 11118:2015 "Specifications and test methods for non-refillable metal gas cylinders for gas cylinders"

The degree of consistency with ISO 11118:2015 is not equivalent:

Please note that certain contents of this document may involve patents: The issuing agency of this document is not responsible for identifying these patents:

This standard was proposed and managed by the National Gas Cylinder Standardization Technical Committee (SAC/TC31):

Drafting organizations of this standard: Zhejiang Jucheng Steel Cylinder Co:, Ltd:, China Special Equipment Inspection and Research Institute, Shanghai Special Equipment Supervision and Inspection Technology

Research Institute, Zhejiang Golden Elephant Technology Co:, Ltd:, Wuyi Xilinde Machinery Manufacturing Co:, Ltd:, Sanjiang Kaiyuan Co:, Ltd:, Zhejiang Ansheng Machinery Manufacturing

Co:, Ltd:, Jiangsu Kaisidi Chemical Machinery Co:, Ltd:

1 Scope

This standard specifies the type, design, manufacturing, inspection rules and test methods of industrial non-refillable welded steel cylinders (hereinafter referred to as steel cylinders)

Method, marking, coating, etc:

This standard is suitable for use at ambient temperature of -40 degrees C~60 degrees C, test pressure PT<=6:2MPa (gauge pressure), volume V<=

25L, PTV<=100MPa.L (when PT >4:5MPa, V<=5L), non-refilling toxicity is classified as Class A refrigeration according to GB/T 7778

(Liquid gas at low pressure):

Note: Steel cylinders must not be used to fill compressed gas:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB/T 222 The allowable deviation of the chemical composition of the finished steel

GB/T 223:9 Steel and alloy determination of aluminum content-Chromazurol S spectrophotometric method

GB/T 223:59 Steel and alloy determination of phosphorus content-Bismuth phosphomolybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method

GB/T 223:63 Methods for chemical analysis of iron, steel and alloy-The sodium (potassium) periodate photometric method for the determination of manganese content

GB/T 223:64 Steel and alloy determination of manganese content by flame atomic absorption spectrometry

GB/T 223:68 Methods for chemical analysis of iron, steel and alloy, the determination of sulfur content by potassium iodate titration after combustion in a tube furnace

GB/T 223:69 Steel and alloy carbon content determination after combustion in tube furnace gas volume method

GB/T 228:1 Tensile Test of Metallic Materials Part 1: Room Temperature Test Method

GB/T 1804 General Tolerance Tolerance of linear and angular dimensions without tolerance

GB/T 2653 Bend test method for welded joints

GB/T 2975 Steel and steel product mechanical performance test sampling location and sample preparation

GB/T 4336 Carbon steel and low- and medium-alloy steel determination of multi-element content Spark discharge atomic emission spectrometry (conventional method)

GB/T 5213 Cold rolled low carbon steel plate and steel strip

GB/T 13005 Gas cylinder terminology

GB/T 14193 Liquefied gas cylinder filling regulations

GB/T 16918 Bursting disc safety device for gas cylinders

GB/T 17878 Industrial bottle valves for non-refillable welded steel cylinders

GB/T 20066 Sampling and sample preparation methods for the determination of the chemical composition of steel and iron

NB/T 47018:3 Technical conditions for ordering welding consumables for pressure equipment Part 3: Gas shielded arc welding wire and filler wire

TSGZ6001 Special equipment operator assessment rules

3 Terms and definitions

The following terms and definitions defined in GB/T 13005 apply to this document: