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GBT12459-2017.pdf

GBT12459-2017 

Steel Butt Welded Fittings,BW Elbow,Tee,Reducer,Cap,Bend --Wilson Pipeline Bw Fittings Supplier  sales@wilsonpipeline.com

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GB/T 12459-2017
Standard search results: 'GB/T 12459-2017'
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Basic Information
Standard number GB/T 12459-2017 (GB/T12459-2017)
Chinese name Steel butt welded pipe fittings Types and parameters
English name Steel buttwelding pipe fittings -- Types and parameter
Industry National Standard (recommended)
Bid classification J15
International Standard Classification 23.040.60
Estimated word count 41,417
Release date 2017-02-28
Implementation date 2017-09-01
Old Standard (Superseded) GB/T 13401-2005; GB/T 12459-2005
Reference standards GB/T 9118; GB/T 9124; GB/T 13401-2017
Drafting unit Wuxi Xinfeng Pipe Industry Co., Ltd., China Machinery Productivity Promotion Center, Jiangyin Nanfang Pipe Fitting Manufacturing Co., Ltd., China Petroleum Engineering Construction Corporation East China Design Branch, China Tianchen Engineering Co., Ltd., China Machinery Guoneng Power Engineering Co., Ltd., Yangzhou Pipe Fittings Factory Co., Ltd., Hebei Canghai Nuclear Equipment Technology Co., Ltd., Changzhou Wujin Electric Power Pipe Fittings Co., Ltd., Huzhou Jiuli Pipe Fittings Co., Ltd., Jiangyin Hailu High Pressure Pipe Fittings Co., Ltd., Tianjin Jinding Pipeline Co., Ltd., Suzhou Yuli Pipe Co., Ltd. Company, National Technical Committee for Standardization of Boilers and Pressure Vessels, Pressure Piping Sub-Technical Committee
The focal point is the National Technical Committee for Standardization of Piping Accessories (SAC/TC 237)
Standard according to National Standard Announcement No. 4 of 2017
Presented by China Machinery Industry Federation
Issuing organization General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of China
Scope This standard specifies the type and code of DN 15~DN 1500 (NPS1/2~NPS60) steel butt welding pipe fittings (hereinafter referred to as pipe fittings), the pressure design of pipe fittings, pipe fitting dimensions, surface profile, end groove, tolerance, Logo and product quality certificate and other requirements. This standard applies to steel butt welded seamless and welded pipe fittings.

GB/T 12459-2017
Steel buttwelding pipe fittings -- Types and parameter
ICS 23.040.60
J15
national standards of People's Republic of China
Partially replace GB/T 12459-2005, GB/T 13401-2005
Steel Butt Welded Fittings Types and Parameters
Published on 2017-02-28
2017-09-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Released by the Standardization Administration of China
directory
Preface I
1 Scope 1
2 Normative references 1
3 Type and code 1
4 Pressure Design of Fittings 2
5 Fitting size 2
6 Surface profile 28
7 End bevel 28
8 Tolerance 30
9 signs 32
10 Product Quality Certificate 33
Appendix A (Normative Appendix) Design Verification Test 34
Appendix B (Informative Appendix) Design and Calculation of Pipe Fittings 37
foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard partially replaces GB/T 12459-2005 "Steel Butt Welded Seamless Pipe Fittings" and GB/T 13401-2005 "Steel Butt Welded Pipes"
Piece". Compared with GB/T 12459-2005, the main technical changes of this standard are as follows:
---The relevant type, code, size and tolerance, pressure rating, test in GB/T 12459-2005 and GB/T 13401-2005
The inspection and marking and other contents are incorporated into this standard, and the pipe fittings of various specifications in this standard no longer distinguish between seamless pipe fittings and welded steel plates.
pipe fittings;
--- Deleted the contents of GB/T 12459-2005 related to raw materials, manufacturing and inspection, which are merged into
In GB/T 13401-2017 "Technical Specification for Steel Butt Welded Pipe Fittings";
--- Added pressure design requirements and instructions for pipe fittings;
---Added relevant information on the design and calculation of pipe fittings;
---Added the calculation and description of relevant parameters for elbows with R=3D bending radius and special angle elbows;
--- Modified the content of the pipe fitting design verification test;
--- Expanded size range.
This standard is proposed by China Machinery Industry Federation.
This standard is under the jurisdiction of the National Standardization Technical Committee of Piping Accessories (SAC/TC237).