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GB/T 5613-2014 English PDF (GBT5613-2014)

GB/T 5613-2014 English PDF (GBT5613-2014)

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GB/T 5613-2014: Designation for cast steels

This Standard specifies the methods for the expression of codes, chemical element symbols, nominal contents and mechanical properties of cast steel designations. This Standard applies to all types of cast steels.
GB/T 5613-2014
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.80
J 31
Replacing GB/T 5613-1995
Designation for Cast Steels
ISSUED ON. SEPTEMBER 3, 2014
IMPLEMENTED ON. JUNE 1, 2015
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 Application Scope ... 4
2 Normative References ... 4
3 Designation System of Cast Steels ... 4
Annex A (Normative) Examples of Names, Codes and Designation System of
Cast Steels ... 7
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 5613-1995, Designation for Cast Steels. Compared with GB/T 5613-1995, the major changes of technical content in this Standard are as follows.
-- it adds the codes for cast steels with special properties;
-- it modifies the expression method for the alloying elements and contents of cast steel designations;
-- it modifies the examples of cast steel designations;
-- it adds Normative Reference A.
This Standard was proposed by and shall be under the jurisdiction of the National Standardization Technical Committee on Foundry (SAC/TC 54).
The responsible drafting organizations of this Standard. Shenyang Research Institute of Foundry, Jinan University.
The contributory drafting organizations of this Standard. Anhui Mechanical Engineering Research Institute, Zhejiang Mayang Industries Co., Ltd., Lanzhou Lanshi Foundry Co., Ltd., Anhui Ningguo Xinning Equipment Manufacture Technological Development Co., Ltd., Ningguo Dungan Wear-Resistant Material Co., Ltd., Xi?€?an Jiaotong University, Jinan University Shaoguan Research Institute.
The main drafters of this Standard. Li Wei, Ge Chenguang, Cai Yongwu, Li Lailong, Jiang Chunhong, Liu Caixian, Zhou Daohong, Zhao Jinbin, Gao Yimin, Liu Ying, Song Liang.
The previous editions of the standard replaced by this Standard are as follows. -- GB/T 5613-1985, GB/T 5613-1995.
Designation for Cast Steels
1 Application Scope
This Standard specifies the methods for the expression of codes, chemical element symbols, nominal contents and mechanical properties of cast steel designations. This Standard applies to all types of cast steels.
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
3 Designation System of Cast Steels
3.1 Cast steel code
3.1.1 The code of cast steels is represented by the capitalized standard initials of Chinese pinyin ?€?Zhu?€? and ?€?Gang?€?.
3.1.2 When it needs to represent a special property of cast steels, the capitalized standard initials of Chinese pinyin representing the special property of cast steels may be used behind the code of cast steels.
3.1.3 See Annex A for the codes and examples of cast steels.
3.2 Element symbols, nominal contents and mechanical properties
The major alloying element symbols in the designations of cast steels are represented by the international chemical element symbols; misch metal elements are represented with symbol ?€?RE?€?. Nominal contents and mechanical properties are represented by Arabic numerals. The rounding rules of their contents are as specified in GB/T 8170. 3.3 Cast steel designation represented by mechanical properties
The two group of numbers behind ?€?ZG?€? in designation represent mechanical properties. The first group of numbers represent the minimum yield strength of the cast steel designation; the second group of numbers represent the minimum tensile strength,

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