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GB/T 12459-2017 English PDF

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GB/T 12459-2017: Steel buttwelding pipe fittings -- Types and parameter
Status: Valid

GB/T 12459: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 12459-2017English819 Add to Cart 6 days [Need to translate] Steel buttwelding pipe fittings -- Types and parameter Valid GB/T 12459-2017
GB/T 12459-2005English135 Add to Cart 0--9 seconds. Auto-delivery Steel butt-welding seamless pipe fittings Valid GB/T 12459-2005
GB/T 12459-1990EnglishRFQ ASK 6 days [Need to translate] Steel butt-welding seamless pipe fittings Obsolete GB/T 12459-1990

PDF similar to GB/T 12459-2017


Standard similar to GB/T 12459-2017

GB/T 12385   GB/T 9125.2   GB/T 13401   GB/T 45182   

Basic data

Standard ID GB/T 12459-2017 (GB/T12459-2017)
Description (Translated English) Steel buttwelding pipe fittings -- Types and parameter
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J15
Classification of International Standard 23.040.60
Word Count Estimation 41,441
Date of Issue 2017-02-28
Date of Implementation 2017-09-01
Older Standard (superseded by this standard) GB/T 13401-2005 Partial; GB/T 12459-2005 Partial
Quoted Standard GB/T 9118; GB/T 9124; GB/T 13401-2017
Regulation (derived from) National Standard Announcement No. 4 of 2017
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 type and code of DN 15 ~ DN 1500 (NPS1/2 ~ NPS60) steel welded pipe fittings (hereinafter referred to as pipe fittings), the pressure design of pipe fittings, pipe size, surface profile, end groove, tolerance, mark And product quality certification and other requirements. This standard applies to steel butt welds and welded fittings.

GB/T 12459-2017: Steel buttwelding pipe fittings -- Types and parameter

---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.
Steel buttwelding pipe fittings - Types and parameter ICS 23.040.60 J15 National Standards of People's Republic of China Part of the replacement GB/T 12459-2005, GB/T 13401-2005 Types and parameters of steel welded pipe fittings 2017-02-28 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface I 1 Scope 1 2 normative reference document 1 3 type and code 1 4 Pressure design of pipe fittings 2 5 pipe size 2

6 surface profile

7 end groove 28 8 Tolerance 30 9 logo 32 10 product quality certificate 33 Appendix A (Normative Appendix) Design Verification Test 34 Appendix B (informative) Pipe design calculation

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. The standard part of the replacement GB/T 12459-2005 "steel welded seamless pipe" and GB/T 13401-2005 "steel plate welded pipe Pieces ". Compared with GB/T 12459-2005, the main technical changes are as follows. --- GB/T 12459-2005 and GB/T 13401-2005 in the relevant type, code, size and tolerance, pressure rating, test Inspection and signs and other contents of the merger in this standard, the standard specifications of the pipe fittings no longer distinguish between seamless pipe or steel plate welding Pipe fittings --- Removed the contents of raw materials, manufacturing and inspection in GB/T 12459-2005, which are incorporated into GB/T 13401-2017 "steel welded pipe fittings technical specifications" in; --- increased the pressure of the pipe design requirements and instructions; --- increase the design of pipe fittings calculation of the relevant information; --- increase the R = 3D bending radius of the elbow and the special angle elbow related parameters calculation and description; --- modified the contents of the design verification test; --- Expanded size range. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Pipeline Annex Standardization Technical Committee (SAC/TC237). The drafting of this standard. Wuxi Xinfeng Pipe Industry Co., Ltd., in the machine productivity promotion center, Jiangyin City, South Pipe Manufacturing Co., Ltd. Company, China Petroleum Engineering Construction Company East China Design Branch, China Tianchen Engineering Co., Ltd., China State Power Engineering Co., Ltd., Yangzhou City Pipe Factory Co., Ltd., Hebei Ocean Nuclear Equipment Technology Co., Ltd., Changzhou Wujin Electric Pipe Fittings Co., Ltd., Huzhou Jiuli Pipe Fittings Co., Ltd., Jiangyin Hailu High Pressure Pipe Fittings Co., Ltd., Tianjin Jinding Pipeline Co., Ltd., Suzhou Yu Li Pipe Industry Co., Ltd., National Boiler Pressure Container Standardization Technical Committee Pressure Pipeline Subcommittee. The drafting of this standard. Wang Hanqing, Guo Shunxing, Li Junying, Liu Jian, Liu Jianxin, Feng Feng, Zhu Xiaofeng, Lu Hengping, Liu Hongfu, Yue Jincai, Meng Qingyun, Zang Zhiwei, Yang Lijian, Xin He, Zhang Xinyue, Zhang Xiujie. This standard replaced the previous version of the standard release. --- GB/T 12459-1990, GB/T 12459-2005; GB/T 13401-1992, GB/T 13401-2005. Types and parameters of steel welded pipe fittings

1 Scope

This standard specifies the DN15 ~ DN1500 (NPS1/2 ~ NPS60) steel welded pipe fittings (hereinafter referred to as pipe fittings) type and code, Pipe fittings pressure design, pipe size, surface profile, end groove, tolerance, logo and product quality certificate and other requirements. This standard applies to steel butt welds and welded fittings.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 9118 Butt welding ring with neck loose sets of steel pipe flange GB/T 9124 steel pipe flange technical conditions Specification for steel welded pipe fittings GB/T 13401-2017

3 type and code

The type and code of the welded pipe fittings are shown in Table 1. Table 1 type and code of fittings Variety type Code Seamless pipe fittings welded pipe fittings 45 ° elbow Long radius 45EL W45EL 3D 45E3D W45E3D 90 ° elbow Long radius 90EL W90EL Long radius reducer 90ELR W90ELR Short radius 90ES W90ES 3D 90E3D W90E3D 180 ° elbow Long radius 180EL W180EL Short radius 180ES W180ES Reducing tube (Size head) Concentric RC WRC Eccentric RE WRE Tee Equal diameter TS WTS Reduced TR WTR

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