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GB/T 11640-2021 related PDF English

GB/T 11640-2021 (GB/T11640-2021, GBT 11640-2021, GBT11640-2021) & related versions
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusSimilar PDF
GB/T 11640-2021English839 Add to Cart 7 days Seamless aluminium alloy gas cylinders GB/T 11640-2021 Valid GBT 11640-2021
GB 11640-2011English150 Add to Cart 0-9 seconds. Auto delivery. [GB/T 11640-2011] Seamless aluminum alloy gas cylinders [Renamed to GB/T 11640-2011] GB 11640-2011 Obsolete GB 11640-2011
GB/T 11640-2001English919 Add to Cart 6 days Seamless aluminum alloy gas cylinders GB/T 11640-2001 Obsolete GBT 11640-2001
GB/T 11640-1989EnglishRFQ ASK 3 days Seamless aluminium alloy gas cylinder GB/T 11640-1989 Obsolete GBT 11640-1989



GB/T 11640-2021: PDF in English (GBT 11640-2021)
GB 11640-2011 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.020.30 J 74 Replacing GB/T 11640-2001 Seamless aluminum alloy gas cylinders ISSUED ON. DECEMBER 30, 2011 IMPLEMENTED ON. DECEMBER 01, 2012 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes. Table of contents Foreword ... 3  1 Scope ... 5  2 Normative references ... 5  3 Terms and definitions, symbols ... 6  4 Type and parameters ... 7  5 Technical requirements ... 9  6 Test methods and qualification criteria ... 13  7 Inspection rules ... 16  8 Marking, coating, packaging, transportation and storage ... 19  9 Product certificate and batch inspection quality certificate ... 20  Appendix A (Normative) Corrosion test ... 22  Appendix B (Normative) Anti-constant load crack test ... 31  Appendix C (Informative) Gases preferable to be filled in aluminum cylinder 37  Appendix D (Informative) Calculation method of stress safety factor for thread shear stress ... 38  Appendix E (Normative) Valve installation torque of aluminum cylinder ... 41  Appendix F (Informative) Description and judgment of defects in aluminum cylinder manufacturing ... 42  Appendix G (Normative) Flattening test method ... 48  Appendix H (Informative) Seamless aluminum alloy cylinder batch inspection quality certificate ... 51  Foreword All technical contents of this part of GB 21551 are mandatory. This standard was drafted in accordance with the rules given in GB/T 1.1-2009 “Directives for standardization – Part 1. Rules for the structure and drafting of standards”. This standard replaces GB/T 11640-2001 “Seamless aluminum alloy gas cylinders”. As compared with GB/T 11640-2001, the main changes of this standard are as follows. - In the provisions on the scope, DELETE the lower limit of nominal working pressure and the lower limit of nominal capacity (SEE Chapter 1 of 2001 version); - In the technical requirements, DELETE the 6351 aluminum alloy material (SEE 5.1.1 of 2001 version); - ADD the requirements for lead and bismuth elements in aluminum alloys (SEE 5.1.1 and 5.1.6); - MODIFY the requirement for the inner bottom radius (SEE 5.2.2.4); - MODIFY the requirements for the collar design (SEE 5.2.5); - MODIFY the requirements for the measured burst pressure (SEE 6.12); - ADD Appendix B (normative) Anti-constant load crack test (SEE 5.1.2); - ADD Appendix D (informative) Calculation method of thread shear stress safety factor (SEE 5.2.3); - ADD Appendix F (informative) Description and determination of aluminum cylinder manufacture defects (SEE 6.2); - ADD Appendix G (normative) Flattening test method (SEE 6.9). This standard was proposed by the National Gas Cylinder Standardization Technical Committee (SAC/TC 31). The drafting organizations of this standard. Shenyang Gas Cylinder Safety Technology Co., Ltd., Heilongjiang Huaan Machinery Co., Ltd., Shanghai High Pressure Containers Co., Ltd. The main drafters of this standard. Jiang Jiang, Liu Shouzheng, Deng Hong, Wang Shuxian, Chen Weiming. Seamless aluminum alloy gas cylinders 1 Scope This standard specifies the type and parameters, technical requirements, test methods and qualification criteria, inspection rules and marking, coating, packaging, transportation and storage requirements of seamless aluminum alloy gas cylinders (hereinafter referred to as aluminum cylinders). This standard applies to the design and manufacture of aluminum cylinders which have a nominal working pressure of not more than 30 MPa, the nominal volume of not more than 50 L, the use temperature is -40 °C ~ 60 °C, AND can be re-filled with permanent gas or liquefied gas. 2 Normative references The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard. GB/T 191 Packaging – Pictorial marking for handling of goods GB/T 192 General purpose metric screw threads – Basic profile GB/T 196 General purpose metric screw threads – Basic dimensions GB/T 197 General purpose metric screw threads – Tolerances GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1. Method of test at room temperature GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1. Test method (scales A, B, C, D, E, F, G, H, K, N, T) GB/T 231.1 Metallic materials - Brinell hardness test - Part 1. Test method GB/T 232 Metallic materials – Bend test GB/T 3191 Extrusion rods and bars of aluminum and aluminum alloy GB/T 3246.1 Inspection method for structure of wrought aluminum and aluminum alloy products – Part 1. Inspection method for microstructure GB/T 3246.2 Inspection method for structure of wrought aluminum and aluminum alloy products – Part 2. Inspection method for macrostructure GB/T 3880.1 ~ 3880.3 Wrought aluminum and aluminum alloy plates, sheets and strips for general engineering 3.2 symbols The following symbols apply to this document. A. elongation at fracture, %; C. Thickness from bottom grounding point to the inner wall, mm; d. Circumferential tear length of rupture opening, mm; D0. Nominal outer diameter of cylinder, mm; Df. Indenter diameter of bending test, mm; H. External height of spherical part (cylinder shoulder and bottom), mm; L. Length of cylinder part, mm; n. The ratio of the indenter diameter to the average thickness of sample; ph. Pressure of hydraulic test, MPa; pb. Pressure of hydraulic blasting test, MPa; r. Inner bottom corner radius, mm; r1. Inner bottom radius, mm; R. Indenter cutting edge radius of flattening test, mm; Rm. Measured tensile strength, MPa; Rp0.2. Specified non-proportional extension strength, MPa; S. Designed wall thickness of cylinder, mm; Sa0. Measured average wall thickness of cylinder, mm; S1. Cylinder bottom center wall thickness, mm; T. Indenter spacing of flattening test, mm. 4 Type and parameters 4.1 Type The typical structure of aluminum cylinders shall generally comply with the type as shown in Figure 1. 5.1.5 The cylinder material must have the product quality certificate from the material manufacturing unit, AND it can only be used after passing the re-testing by the aluminum cylinder manufacturing unit. 5.1.6 The chemical composition shall be re-tested in accordance with the material furnace number. The Pb and Bi contents can be confirmed in accordance with the data of the product quality certificate. 5.1.7 The casting ingot shall be subjected to ultrasonic test in accordance with Φ2 mm equivalent flat bottom hole, AND the inspection method shall comply with the provisions of GB/T 6519. 5.2 Design 5.2.1 Wall thickness design 5.2.1.1 In the wall thickness calculation for cylinder body design, it shall use the specified non-proportional extension strength guaranteed value after material heat treatment, AND such value shall not exceed 85% of the tensile strength guaranteed value. 5.2.1.2 It shall be based on pressure of the hydraulic pressure test, AND such pressure is 1.5 times the nominal working pressure. 5.2.1.3 The design wall thickness of the cylinder shall not be less than the calculated values of the formula (1) and formula (2), AND shall not be less than 1.5 mm. 5.2.2 End design 5.2.2.1 The thickness and shape of the bottom and shoulders shall comply with the requirements of hydraulic rupture tests and fatigue tests. 5.2.2.2 In order to make the stress distribution evenly, the wall thickness from the cylinder body to the shoulder and from the cylinder body to the bottom shall be gradually increased, AND the typical structure of the shoulder and the bottom is as shown in Figure 2. 5.2.2.3 The thickness of any part of the bottom shall not be less than the design wall thickness of the cylinder. 5.2.2.4 The inner bottom radius (r1) shall not be more than 1.2 times the inner diameter of the cylinder, AND the inner bottom corner radius (r) shall not be less than 10% of the inner diameter of the cylinder. 6 Test methods and qualification criteria 6.1 Wall thickness It shall use the ultrasonic thickness gauge OR special measurement tools for testing. Qualification criteria. the wall thickness of the cylinder at any point shall not be less than the d... ......

BASIC DATA
Standard ID GB/T 11640-2021 (GB/T11640-2021)
Description (Translated English) Seamless aluminium alloy gas cylinders
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J74
Classification of International Standard 23.020.30
Word Count Estimation 45,417
Date of Issue 2021-04-30
Date of Implementation 2021-11-01
Older Standard (superseded by this standard) GB/T 11640-2011
Drafting Organization Shenyang Silinda Anke New Materials Co., Ltd., Shanghai Institute of Special Equipment Supervision and Inspection Technology, Zhejiang Weineng Fire Equipment Co., Ltd., Jiangsu Jiuwei Pressure Vessel Manufacturing Co., Ltd., Shenyang Zhongfu Kejin Pressure Vessel Co., Ltd., Liaoning Mei Technology Co., Ltd.
Administrative Organization National Technical Committee for Gas Cylinder Standardization (SAC/TC 31)
Regulation (derived from) National Standard Announcement No. 5 of 2021
Proposing organization National Technical Committee for Gas Cylinder Standardization (SAC/TC 31)
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration