GB/T 3190-2020 English PDF (GB/T3190-2020)

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GB/T 3190-2020: Chemical Composition of Wrought Aluminum and Aluminum Alloys
GB/T 3190-2020
Chemical composition of wrought aluminium and aluminium alloys
ICS 77.150.10
H60
National Standards of People's Republic of China
Replace GB/T 3190-2008
Deformed aluminum and aluminum alloy chemical composition
2020-03-31 release
2021-02-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 3190-2008 "Chemical Composition of Deformed Aluminum and Aluminum Alloys", compared with GB/T 3190-2008, except for editorial
The main technical changes outside the modification are as follows.
--- Modified normative references (see Chapter 2, Chapter 2 of the.2008 edition);
--- The international four-digit number and chemical composition table have added 79 grades and deleted 6 grades (see 3.1.1,.2008 edition
3.1.1);
--- The domestic four-character grades and chemical composition table have added 29 grades and deleted the 2A97 grade (see 3.1.1,.2008 edition
3.1.1);
--- Modified the header of the international four-digit number and chemical composition table and the domestic four-character number and chemical composition table, adding
"Ag" "B" "Bi" "Ga" "Li" "Pb" "Sn" "V" 8 element columns (see 3.1.1, 3.1.1 in the.2008 edition);
--- Added control requirements for packaging aluminum and aluminum alloy materials (see 3.1.5);
--- Modified the sampling requirements (see 3.2, version 3.2 in.2008);
--- Modified the composition analysis requirements (see 3.3, 3.3 in the.2008 edition);
--- Increasing the grade and chemical composition of inactive alloys (see Appendix A);
--- Modified the "Compared Forms of Used Brands" (see Appendix B, Appendix A of the.2008 edition).
This standard was proposed by China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This standard was drafted by. Northeast Light Alloy Co., Ltd., Nonferrous Metal Technology and Economic Research Institute, Shandongnanshan Aluminum Co., Ltd.
Division, Youyan Engineering Technology Research Institute Co., Ltd., Xiamen Xiashun Aluminum Foil Co., Ltd., Guangdong Haomei New Material Co., Ltd., Guangdong Xingfa Aluminum
Co., Ltd., Fujian Nanping Aluminum Co., Ltd., Southwest Aluminum (Group) Co., Ltd., Guangdong Jianmei Aluminum Profile Factory (Group) have
Limited company, Guangdong Huachang Aluminum Factory Co., Ltd., China Ordnance Research Institute Ningbo Branch, China Aluminum Ruimin Co., Ltd., Xinjiang Zhonghe
Co., Ltd., Northwest Aluminum Co., Ltd., Longkou Conglin Aluminum Co., Ltd., Fujian Minfa Aluminum Co., Ltd., Shandong Yankuang
Light Alloy Co., Ltd.
The main drafters of this standard. Ma Yue, Wu Xinfeng, Lu Xinyu, Gu Liu, Zhao Yongjun, Li Xiwu, Wang Qiang, Tian Xiaomei, Zhou Chunrong, Zhang Hongliang,
Yin Yunxia, Liu Shilei, Chen Lei, Sun Haibo, Chen Wensi, Liu Quanquan, Shi Guishan, Xu Shiguang, Tang Xingyu, Zhou Guxin, Chuang Hongyu, Lin Meiqin, Yan Lizhen,
He Xinguang, Wang Shouye, Su Zhenjia, Huang Changyuan, Han Zhengqian.
The previous versions of the standard replaced by this standard are as follows.
--- GB/T 3190-1982, GB/T 3190-1996, GB/T 3190-2008.
Deformed aluminum and aluminum alloy chemical composition
1 Scope
This standard specifies the chemical composition of deformed aluminum and aluminum alloys.
This standard applies to aluminum and aluminum alloy processed products (plates, strips, foils, tubes, rods, profiles, wires, forgings, etc.) produced by pressure processing methods and their
Ingots and billets used.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 7999 Aluminum and aluminum alloy photoelectric direct reading emission spectrum analysis method
GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 16474 Representation of deformed aluminum and aluminum alloy grades
GB/T 17432 Sampling method for chemical composition analysis of deformed aluminum and aluminum alloy
GB/T 20975 (all parts) Methods for chemical analysis of aluminum and aluminum alloys
GB/T 27675 Aluminum and aluminum alloy composite plates, tapes, foil grades representation method
YS/T 870 High purity aluminum chemical analysis method Determination of trace impurity elements Inductively coupled plasma mass spectrometry
3 requirements
3.1 Chemical composition
3.1.1 The method for expressing the grades of deformed aluminum and aluminum alloys shall comply with the provisions of GB/T 16474. The chemical composition of deformed aluminum and aluminum alloys should meet
Table 2, Table 3 and Table A.1. The limit values in Table 2, Table 3 and Table A.1 should meet the requirements of Table 1.
Table 1 Representation of element limit values
3.1.2 The method for indicating the grade of composite materials shall comply with the provisions of GB/T 27675, and the chemical composition of the aluminum alloy material shall comply with this standard
Provisions.
3.1.3 Aluminum and aluminum alloy materials used in the food industry should be controlled w (Pb Hg Cd Cr6) ≤0.01%, w (As) ≤0.01%.
3.1.4 Aluminum and aluminum alloy materials used in the electrical and electronic equipment industry should be controlled w (Pb) ≤0.1%, w (Hg) ≤0.1%, w (Cd) ≤0.01%,
w (Cr6) ≤ 0.1%.
3.1.5 Aluminum and aluminum alloy materials for packaging should be controlled w (Pb Hg Cd Cr6) ≤0.01%.
3.2 Sampling
Sampling for chemical composition analysis shall comply with the provisions of GB/T 17432.
3.3 Composition analysis
3.3.1 Only the elements with values specified in the "Al" and "Other" columns in Table 2, Table 3, and Table A.1 are routinely analyzed. When suspected of unconventional
When the quality score of the analysis element exceeds the limit of this standard, the producer should analyze these elements.
3.3.2 The chemical composition analysis methods in Table 2, Table 3, and Table A.1 should meet the requirements of GB/T 20975, GB/T 7999, or YS/T 870,
"Co" element content is less than 0.005% or "Al" element content is not less than 99.90%
The method stipulated in YS/T 870, the arbitration analysis of “O” element content is also available for negotiation by both parties, and the arbitration analysis of the remaining chemical components should be adopted
The method specified in GB/T 20975.
3.3.4 The content of "Al" element ≥99.00% in Table 2, Table 3, and Table A.1 is determined by the calculation method.
--- When the content of "Al" element is ≥99.00% ~ 99.90%, use 100.00% minus all the routines whose mass fraction is not less than 0.010%
The sum of the analysis element and the unconventional analysis of the metal element suspected to be excessive, the value of each element before summation should be expressed to 0.0X%;
--- When the content of "Al" element is> 99.90% ~ 99.99%, use 100.00% minus all the mass fractions of not less than 0.0010%.
After summing, the sum will be rounded to 0.0X%;
--- When the content of "Al" element is> 99.99%, use 100.00% minus all conventional analysis elements with a mass fraction of not less than 0.0010%
Round the sum to 0.00X%.
3.3.5 The analysis value is judged by the rounding comparison method.
The limits in Table 2, Table 3 and Table A.1 of this standard are consistent.
3.3.6 The production plant shall monitor and analyze the control elements of 3.1.3, 3.1.4 and 3.1.5 to ensure that the control elements meet the requirements.
4 Other
4.1 The grade and chemical composition of inactive alloys are shown in Appendix A.
4.2 Refer to Appendix B for the comparison between the four-character grade and the previous grade.