GB/T 5153-2016 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 5153-2016 | English | 150 |
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Designation and composition of wrought magnesium and magnesium alloys
| Valid |
| GB/T 5153-2003 | English | 239 |
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Designation and composition of wrought magnesium and magnesium alloys
| Obsolete |
| GB/T 5153-1985 | English | 199 |
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Designation and composition of wrought magnesium !nd magnesium alloys
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GB/T 5153-2016: Designation and composition of wrought magnesium and magnesium alloys---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5153-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.20
H 60
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
Foreword
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 Ultra-
light 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.
-- GB/T 5153-1985, GB/T 5153-2003.
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.
4 Requirements
4.1 Chemical composition
The designations and chemical compositions of wrought magnesium and magnesium
alloys shall be as specified in Table 2.The blank “others” in the table refers to metallic
elements not listed in the table. When the mass fraction in the table is a single value,
4.2 Sampling
Sampling shall be as specified in GB/T 17432.
4.3 Composition analysis
4.3.1 Only carry out routine chemical analysis for the elements having value
specifications in Table 2, excluding “magnesium” and “others”.
4.3.2 When it is doubted that the mass fraction of some elements of “-” and “others”
not listed in Table 2 exceeds their “single” or “total” limit value in this Standard, these
elements can be analyzed.
4.3.3 Chemical composition is analyzed in accordance with the method specified in
4.4 Others
4.4.1 The digits of the mass fraction of the elements given in the chemical
composition analysis report shall be consistent with the digits of the corresponding
designations specified in Table 2.
4.4.2 The rules of rounding off of numerical values are as specified in GB/T 8170.
4.4.3 For the table of cross-references between the new and old designations see
Annex A.
Annex A
(Normative)
Cross-references between the new and old designations
For the table of cross-references between the new and old designations (including the
registered designations applied for after the issuance of GB/T 5153-2003) see Table
A.1.
Annex B
(Informative)
Structural meanings of the digital designations in ISO 3116.2007
For the structural meanings of the digital designations in ISO 3116.2007 see Table B.1.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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