GB/T 30062-2013 English PDF

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GB/T 30062-2013: Terminology of steel pipes and tubes
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Basic data

Standard ID: GB/T 30062-2013 (GB/T30062-2013)
Description (Translated English): Terminology of steel pipes and tubes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H48
Classification of International Standard: 77.140.75
Word Count Estimation: 42,427
Adopted Standard: API Std 5T1, NEQ
Regulation (derived from): National Standards Bulletin No. 25 of 2013
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the name of the pipe, size, weight, deviation, shape, surface quality, delivery status, defect common terms and definitions. This standard applies to the preparation of seamless steel tubes, welded steel pipes, cast steel, special

GB/T 30062-2013: Terminology of steel pipes and tubes

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Terminology of steel pipes and tubes ICS 77.140.75 H48 National Standards of People's Republic of China Pipe term Issued on. 2013-12-17 2014-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 nomenclature 1 2.1 General terms 1 2.2 by manufacturing methods classification 1 2.3 by 3 cross-sectional shape classification 2.4 Classified by material composition 4 3 Dimensions, weight and deviation term 5 4 the shape, surface quality terminology 6 5 10 term delivery status 6 Defect Terminology 10 10 6.1 General terms Imperfections and defects 6.2 Non-Weld 11 Weld imperfections and defects 6.3 22 Appendix A (informative) commonly used welding method terminology 32 Chinese index 33 English 36 Index

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard reference APIStd5T1 "defect term" formulation. The standard proposed by China Iron and Steel Association. This standard by the National Steel Standardization Technical Committee (SAC/TC183) centralized. This standard is mainly drafted by. Pangang Group Chengdu Steel & Vanadium Co., Metallurgical Industry Information Standards Institute, Hengyang Valin Steel Tube Co., The company, Panyu Zhujiang Steel Pipe Co., Ltd., Tianjin Pipe Group Co., Ltd., Zhejiang Jiuli Special Materials Technology Co., Ltd., Jiangsu bound up Specific New Material Co., Ltd. Shanghai on the stainless steel pipe, Zhejiang Jinzhou Pipeline Technology Co., Ltd., Baoji Petroleum Steel Pipe limited liability company. The main drafters of this standard. Li Qi, Yan such as Haitao, Dong Li, Zhao Bin, Wang Li tree, An Jianbo, Shao Yu, Wang Wei, the money in music, Yang Weifang, Wang Hui, Li, Yang Fan. Pipe term

1 Scope

This standard specifies the name of the pipe, size, weight, deviation, shape, surface quality, delivery status, defect common terms and definitions. This standard applies to the preparation of seamless steel tubes, welded steel pipe standards at all levels, casting pipe, shaped steel, composite steel and metal hose and have Off the technical documentation.

2 nomenclature

2.1 General terms 2.1.1 Pipe steelpipe (steeltube) Open at both ends and having a hollow closed section, and the length and cross-section of a steel product typically has a circumference greater proportion. NOTE. In the power piping, process piping and pipeline applications, the use of internal and external heat exchange medium pipe commonly used "tube", such as boiler water-cooled Wall tubes, superheater tubes, reheater tubes; medium conveying pipe applications typically use "pipe", such as steel transport oil and gas, steam, water and other fluid medium tube. In other applications, "tube" and "pipe" is used in general no distinction. 2.1.2 Tube pipebody For welded steel pipe, steel pipe means does not include the entire weld and heat affected zone; other pipe, refers to the entire steel pipe. 2.1.3 Tube end pipeend From the tip ends of the provisions of section steel pipe or pipe segment length range. Different standards for the length of the pipe end may have different requirements. 2.2 by manufacturing methods classification 2.2.1 Seamless steel pipe seamlesssteelpipe Using perforated billet, or perforation after rolling (drawing, extruding, expanding the system, the top pressure, forging), or a method of manufacturing a forged machining without welding Seam pipe. 2.2.1.1 Hot-rolled (extrusion, top, forging, expansion) seamless steel pipe hotroled (extruded, upset, forged, expanded) seamlesssteelpipe Use in the recrystallization temperature above the final rolling (extrusion, top pressure, forging, expanding system) deformation pressure processing method for producing seamless steel tubes. 2.2.1.2 Cold drawn (rolled, spinning) seamless steel pipe colddrawn (roled, spun) seamlesssteelpipe Carried out at the factory using ambient temperature of the final drawing mill (rolling, spinning) deformation pressure processing method for producing seamless steel tubes. 2.2.1.3 Boring seamless steel forging forgedandboredseamlesssteelpipe After the tube by forging using drill boring molding method for manufacturing a seamless steel pipe. 2.2.2 Welded steel pipe weldedsteelpipe Plate or strip Edge pressure is mechanically crimped and welded together forming (the term commonly used welding method, see Appendix A) is made with a welding Seam steel pipe, referred to as pipe. ......

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