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GB/T 6653-2017 English PDF (GBT6653-2017)

GB/T 6653-2017 English PDF (GBT6653-2017)

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GB/T 6653-2017: Steel plates and strips for welded gas cylinders

This Standard specifies the dimension, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, package, mark and quality certificate of steel plates and strips for welded gas cylinders. This Standard is applicable to the hot-rolled steel plates and strips with thickness of 2.0mm~14.0mm, and cold-rolled steel plates and strips with thickness of 1.5mm~4.0mm used for the welded gas cylinder.
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.50 H 46
GB/T 6653-2017
Replacing GB/T 6653-2008
Steel Plates and Strips for Welded Gas Cylinders
Issued on. December 29, 2017 Implemented on. September 01, 2018
Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Expression Method of Grade ... 6
4 Ordering Content ... 6
5 Dimension, Shape, Weight and Permissible Tolerance ... 7
6 Technical Requirements ... 7
7 Test Methods ... 10
8 Inspection Rules ... 11
9 Package, Markand Quality Certificate ... 12
This Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard replaced GB/T 6653-2008 Steel Plates and Strips for Welded Gas Cylinders. Compared with GB/T 6653-2008, this Standard has the major technical changes as follows. --- Modify the requirements for chemical compositions; --- Modify the requirements for impact performance; --- Modify the requirements for non-metallic inclusions; --- Modify the requirements for surface quality. This Standard was proposed by China Iron and Steel Industry Association. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Steel (SAC/TC 183).
Drafting organizations of this Standard. Angang Steel Company Limited, China Metallurgical Information and Standardization Institute, Shougang Corporation, and Wuhan Iron and Steel (Group) Corporation.
Chief drafting staffs of this Standard. Guan Jichun, Pu Zhimin, Zhang Weixu, Shi Li, Liu Meihong, Wu Chaohui, and Chen Xiaohong.
The historical editions replaced by this Standard are as follows. --- GB 6653-1986, GB 6653-1994, GB/T 6653-2008. 1 Scope
This Standard specifies the dimension, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, package, mark and quality certificate of steel plates and strips for welded gas cylinders. This Standard is applicable to the hot-rolled steel plates and strips with thickness of 2.0mm~14.0mm, and cold-rolled steel plates and strips with thickness of 1.5mm~4.0mm used for the welded gas cylinder. 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 document. GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.9 Iron and Steel ?€? Determination of Aluminum Content ?€? Chromazurol S Photometric Method GB/T 223.12 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Carbonate Separation-Diphenyl Carbazide Photometric Method for the Determination of Chromium Content GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy -The NBenzoy-N-Phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content GB/T 223.16 Methods for Chemical Analysis of Iron, Steel and Alloy -The Chromotropic Acid Photometric Method for the Determination of Titaninm Content GB/T 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy -The Neocuproine-Chloroform Extraction Photometric Method for the Determination of Copper Content GB/T 223.23 Iron, Steel and Alloy-Determination of Nickel Content -The Dimethylglyoxime Spectrophotometric Method GB/T 223.40 Iron, Steel and Alloy -Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method GB/T 223.49 Methods for Chemical Analysis of Iron, Steel and Alloy - Extraction Separation -Chlorophosphonazo Ma Spectrophotometric Method for the Determination of the Total Rare Earth Content GB/T 223.59 Iron, Steel and Alloy -Determination of Phosphorus Content Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method GB/T 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy -The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content 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 223.68 Methods for Chemical Analysis of Iron, Steel and Alloy -The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content GB/T 223.69 Iron, Steel and Alloy -Determination of Carbon Contents -Gas-volumetric Method after Combustion in the Pipe Furnace GB/T 228.1 Metallic Materials -Tensile Testing - Part 1. Method of Test at Room Temperature GB/T 229 Metallic Materials ?€? Charpy Notch Impact Test
GB/T 232 Metallic Materials ?€? Bend Test
GB/T 247 General Rule of Acceptance, Package, Mark and Certification for Steel Plates (Sheets) and Strips GB/T 708 Dimension, Shape, Weight and Tolerance for Cold-Rolled Steel Plates and Strips GB/T 709 Dimension, Shape, Weight and Tolerance for Hot-Rolled Steel Plates and Strips GB/T 2975 Steel and Steel Products -Location and Preparation of Test Pieces for Mechanical Testing GB/T 6394 Metal ?€? Methods for Estimating the Average Grain Size GB/T 8170 Rules of Rounding off for Numerical Values and Expression and Judgement of Limiting Values GB/T 10561 Steel -Determination of Content of Nonmetallic Inclusions -
Micrographic Method Using Standards Diagrams GB/T 14977 General Requirements for Surface Condition of Hot-Rolled Steel Plates GB/T 17505 Steel and Steel Products ?€? General Technical Delivery Requirements GB/T 20066 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition GB/T 20125 Low-Alloy Steel -Determination of Multi-Element Contents - Inductively Coupled Plasma Atomic Emission Spectrometric Method
3 Expression Method of Grade
The grade of steel consists of two parts, namely, the initial of Chinese Pinyin ?€?welded cylinder?€? of ?€?HP?€?, and lower limit of lower yield strength.
Example. HP295, thereof.
HP - the initial of Chinese Pinyin ?€?welded cylinder?€?;
295 ?€? the lower limit of lower yield strength of steel, in MPa.
4 Ordering Content
The contract or purchasing list that order products as per this Standard shall include the following contents. a) Standard number; b) Product type (steel plates or strips); c) Grade; d) Delivery state;

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