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GB/T 5153-2016 (GB/T5153-2016, GBT 5153-2016, GBT5153-2016) & related versions
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GB/T 5153-2016: PDF in English (GBT 5153-2016)
GB/T 5153-2016
Replacing GB/T 5153-2003
Designation and composition of
wrought magnesium and magnesium alloys
Issued on. August 29, 2016 Implemented on. July 1, 2017
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.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Designation rules... 5
4 Requirements ... 6
Annex A (Normative) Cross-references between the new and old
designations ... 12
Annex B (Informative) Structural meanings of the digital designations in ISO
3116.2007 ... 13
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Iron and Steel Association.
This Standard replaces GB/T 5153-2003, Designation and composition of wrought magnesium and magnesium alloys.
Compared with GB/T 5153-2003, the major technical changes of this Standard are as follows.
-- it adds element codes “J” and “V” to represent respectively elements “strontium (Sr)” and “gadolinium (Gd)”;
-- it adds the expression method of limit values;
-- based on the research and development of magnesium alloy system, it improves the ally groups of magnesium alloy, including Mg-Al, Mg-Zn, Mg-Mn, Mg-RE, Mg-Gd, Mg-Y, Mg-Zr and Mg-Li;
-- it adds the requirements for composition analysis and sampling;
-- it adds 46 designations and compositions.
This Standard was proposed by China Nonferrous Metals Industry Association.
This Standard shall be under the jurisdiction of Technical Committee 243 on Nonferrous Metals of Standardization Administration of China (SAC/TC 243).
The responsible drafting organization of this Standard. Northeast Light Alloy Co., Ltd..
The contributory drafting organizations of this Standard. Chongqing University, Qinghai Qaidam Qingyuan-Fanmei Technology Co., Ltd., Shanghai Jiaotong University, Central South University, Shandong Yinguang-Yuyuan Light Metal Precision Shaping Co., Ltd., Henan Yuhang Metal Materials Co., Ltd., Zibo Hongtai Science and Technology Co., Ltd., Xi’an Jiaotong University Suzhou Academy, Xi’an Sifang Ultralight Materials Co., Ltd., National Centre for Quality Supervision and Inspection of Magnesium and Magnesium Alloy Products, Chongqing Magnesium Industry Technology Co., Ltd., Zhejiang Qixin Alloy Materials Co., Ltd., Ningxia Sun Magnesium Industry Co., Ltd..
The main drafters of this Standard. Ma Yue, Wang Qiang, Zhou Bing, Zhang Jing, Chai Donglang, Chai Xiang, Wang Yingxin, Yin Yunxia, Jiang Dejun, Pan Fusheng, Peng Liming, Yang Jianyuan, Liu Chuming, Li Qi, Wu Xiaoxu, Cai Zhi, Qian Yafeng, Li Ping, Zhao Xiaojun, Liu Junjun, Zhou Yuanfu.
The previous editions of the standard replaced by this Standard are as follows.
Designation and composition of
wrought magnesium and magnesium alloys
1 Scope
This Standard specifies the designations and chemical compositions of wrought magnesium and magnesium alloys.
This Standard applies to wrought magnesium and magnesium alloy products.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to This Standard.
GB/T 8170, Rules of rounding off for numerical values and expression and judgement of limiting values
GB/T 13748 (all parts), Chemical analysis methods of magnesium and magnesium alloys
GB/T 17432, Methods for sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
ISO 3116.2007, Magnesium and magnesium alloys – Wrought magnesium alloys
3 Designation rules
3.1 The designation of pure magnesium is expressed in the form of Mg and digits, the digits behind Mg representing the mass fraction of Mg.
3.2 The designation of magnesium alloys is expressed in the form of English letters and digits and English letters. The front English letters are the major alloy element code (the element code as specified in Table 1); and the digits behind indicate the approximate content of the major alloy element. The final English letters are the identification code, which is used to identify different alloys comprising different elements or slightly different element contents.

Standard ID GB/T 5153-2016 (GB/T5153-2016)
Description (Translated English) Designation and composition of wrought magnesium and magnesium alloys
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H61
Classification of International Standard 77.120.20
Word Count Estimation 10,165
Date of Issue 2016-08-29
Date of Implementation 2017-07-01
Older Standard (superseded by this standard) GB/T 5153-2003
Regulation (derived from) National Standard Announcement 2016 No.14