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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 3190-2008 Wrought aluminium and aluminium alloy——Chemical composition. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 3190-2008:
——The normative references are modified (see Clause 2; Clause 2 of Edition 2008);
——79 designations are added in and 6 designations are deleted from the table of international four-digit designations and chemical compositions (see 3.1.1; 3.1.1 of Edition 2008);
——29 designations are added in and the designation 2A97 is deleted from the table of domestic four-digit designations and chemical compositions (see 3.1.1; 3.1.1 of Edition 2008);
——The headers of the table of international four-digit designations and chemical compositions and the table of domestic four-digit designations and chemical compositions are modified, and eight columns of elements "Ag", "B", "Bi", "GA", "Li", "Pb", "Sn" and "V" are added (see 3.1.1; 3.1.1 of Edition 2008);
——The control requirements of aluminium and aluminium alloy materials for packaging are added (see 3.1.5);
——The sampling requirements are modified (see 3.2; 3.2 of Edition 2008);
——The requirements for component analysis are modified (see 3.3; 3.3 of Edition 2008);
——The designations and chemical compositions of inactive alloys are added (see Annex A);
——Comparison table of previous designations is modified (see Annex B; Annex A of Edition 2008).
This standard was proposed by China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of SAC/TC 243 National Technical Committee on Nonferrous Metals of Standardization Administration of China.
The previous editions of this standard are as follows:
GB/T 3190-1982, GB/T 3190-1996 and GB/T 3190-2008.
Chemical composition of wrought aluminium and aluminium alloys
1 Scope
This standard specifies the chemical composition of wrought aluminium and aluminium alloys.
This standard is applicable to aluminium and aluminium alloy products (sheets, strips, foils, tubes, rods, shapes, wires and forgings, etc.) produced by pressure processing method, as well as ingots and blanks used for them.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 16474 Designation system for wrought aluminium and aluminium alloy
GB/T 17432 Methods for sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys
GB/T 20975 (All parts) Methods for chemical analysis of aluminium and aluminium alloys
GB/T 27675 Designation system for aluminium and aluminium alloys composite sheets, strips and foils
YS/T 870 Chemical analysis of high purity aluminium—Determination of trace impurities—Inductively coupled plasma mass spectrometry
3 Requirements
3.1 Chemical composition
3.1.1 Designation system for the wrought aluminium and aluminium alloy shall meet the requirements of GB/T 16474. Chemical compositions of the wrought aluminium and aluminium alloy shall be in accordance with those specified in Tables 2, 3 and A.1. The limit values given in Tables 2, 3 and A.1 shall be in accordance with those specified in Table 1.
Table 1 Representation of limit values of elements
Limit value of element Representation format of limit value a
<0.001% 0.000X
0.001%~<0.01% 0.00X or 0.00XX
0.01%~<0.10% Refined aluminium 0.0XX
Non-refined aluminium and aluminium alloy 0.0X
0.10%~0.55%b 0.XX
>0.55% 0.X, X.X, XX.X
a The limit value of the sum of Fe and Si with the designation of 1XXX is represented as 0.XX or 1.XX.
b The limit value within the range of 0.30%~0.55% is represented as 0.X0 or 0.X5.
3.1.2 The designation system of composite materials shall meet the requirements of GB/T 27675, and the chemical composition of aluminium alloy materials shall meet the requirements of this standard.
3.1.3 Aluminium and aluminium alloy materials used in food industry shall be controlled to be w(Pb+Hg+Cd+Cr6+)≤0.01% and w(As)≤0.01%.
3.1.4 Aluminium and aluminium alloy materials used in electrical and electronic equipment industry shall be controlled to be w(Pb)≤0.1%, w(Hg)≤0.1%, w(Cd)≤0.01% and w(Cr6+)≤0.1%.
3.1.5 Aluminium and aluminium alloy materials for packaging shall be controlled to be w(Pb+Hg+Cd+Cr6+)≤0.01%.
3.2 Sampling
Methods for sampling for analyzing the chemical composition shall meet the requirements of GB/T 17432.
3.3 Component analysis
3.3.1 Conventional analysis is conducted only for the elements with value requirements for those other than the columns of "Al” and "Other” in Tables 2, 3 and A.1. If the mass fractions of elements under unconventional analysis are suspected to exceed the limit values given in this standard, these elements shall be analyzed by the manufacturer.
3.3.2 The chemical composition analysis methods in Tables 2, 3 and A.1 shall meet the requirements of GB/T 20975, GB/T 7999 or YS/T 870. The arbitration analysis method for the chemical composition of designations with "Co" content less than 0.005% or designations with "Al" content not less than 99.90% shall be the method specified in YS/T 870. The arbitration analysis method for “O” content also may be determined through negotiation between the purchaser and the supplier, and that for other chemical compositions shall be the method specified in GB/T 20975.
3.3.3 When the "total" of "others" in Tables 2, 3 and A.1, the analysis value of each element before summation shall be accurate to 0.XX%.
3.3.4 The content of "Al" (≥99.00%) in Tables 2, 3 and A.1 shall be determined by calculation method:
——When the content of "Al" element is greater than or equal to 99.00%~99.90%, by subtracting the sum of all elements under conventional analysis with the mass fraction not less than 0.010% and the metal elements under unconventional analysis suspected of exceeding 0.010% from 100.00%. The value of each element before summation shall be accurate to 0.0X%;
——When the content of "Al" element is greater than 99.90%~99.99%, by subtracting the sum of all elements under conventional analysis with the mass fraction not less than 0.0010% and the metal elements under unconventional analysis suspected of exceeding 0.0010% from 100.00%. The value of each element before summation shall be accurate to 0.0XX%, and the sum total after the summation shall be rounded off to 0.0X%;
——When the content of "Al" element is greater than 99.99%, by subtracting the sum of all elements under conventional analysis with the mass fraction not less than 0.0010% and the metal elements under unconventional analysis suspected of exceeding 0.0010% from 100.00%. The value of each element before summation shall be accurate to 0.00XX%, and the sum total after the summation shall be rounded off to 0.00X%.
3.3.5 The analysis values are judged by using the rounded-off-value comparison method. Rules of rounding off for numerical values shall be as specified in GB/T 8170, and number of rounding off digits shall be consistent with the limit specified in Tables 2, 3 and A.1 in this standard.
3.3.6 The manufacturer shall monitor and analyze the control elements in 3.1.3, 3.1.4 and 3.1.5 to ensure that the control elements meet the requirements.
4 Others
4.1 See Annex A for the designations and chemical compositions of inactive alloys.
4.2 See Annex B for the comparison between the four-digit designations and the previous designations.
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Others
Annex A (Normative) Designations and chemical compositions of inactive alloys
Annex B (Informative) Comparison between digit designations involved in Table 3 and their previous designations
ICS 77.150.10
H 60
GB
中華人民共和國國家標(biāo)準(zhǔn)
GB/T 3190—2020
代替GB/T 3190—2008
變形鋁及鋁合金化學(xué)成分
Chemical composition of wrought aluminium and aluminium alloys
2020-03-31發(fā)布 2021-02-01實(shí)施
國家市場監(jiān)督管理總局
國家標(biāo)準(zhǔn)化管理委員會(huì) 發(fā)布
前言
本標(biāo)準(zhǔn)按照GB/T 1.1—2009給出的規(guī)則起草。
本標(biāo)準(zhǔn)代替GB/T 3190—2008《變形鋁及鋁合金化學(xué)成分》，與GB/T 3190—2008相比，除編輯性修改外主要技術(shù)變化如下：
——修改了規(guī)范性引用文件(見第2章，2008年版的第2章)；
——國際四位數(shù)字牌號及化學(xué)成分表中增加了79個(gè)牌號，刪除了6個(gè)牌號(見3.1.1，2008年版的3.1.1)；
——國內(nèi)四位字符牌號及化學(xué)成分表中增加了29個(gè)牌號，刪除了2A97牌號(見3.1.1，2008年版的3.1.1)；
——修改了國際四位數(shù)字牌號及化學(xué)成分表和國內(nèi)四位字符牌號及化學(xué)成分表的表頭，增加了“Ag”“B”“Bi”“Ga”“Li”“Pb”“Sn”“V”8個(gè)元素欄(見3.1.1，2008年版的3.1.1)；
——增加了包裝用鋁及鋁合金材料的控制要求(見3.1.5)；
——修改了取樣要求(見3.2，2008年版的3.2)；
——修改了成分分析要求(見3.3，2008年版的3.3)；
——增加了不活躍合金的牌號和化學(xué)成分(見附錄A)；
——修改了《曾用牌號對照表》(見附錄B，2008年版的附錄A)。
本標(biāo)準(zhǔn)由中國有色金屬工業(yè)協(xié)會(huì)提出。
本標(biāo)準(zhǔn)由全國有色金屬標(biāo)準(zhǔn)化技術(shù)委員會(huì)(SAC/TC 243)歸口。
本標(biāo)準(zhǔn)所代替標(biāo)準(zhǔn)的歷次版本發(fā)布情況為：
GB/T 3190—1982、GB/T 3190—1996、GB/T 3190—2008。
變形鋁及鋁合金化學(xué)成分
1 范圍
本標(biāo)準(zhǔn)規(guī)定了變形鋁及鋁合金的化學(xué)成分。
本標(biāo)準(zhǔn)適用于以壓力加工方法生產(chǎn)的鋁及鋁合金加工產(chǎn)品(板、帶、箔、管、棒、型、線和鍛件等)及其所用的鑄錠和坯料。
2 規(guī)范性引用文件
下列文件對于本文件的應(yīng)用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。
GB/T 7999 鋁及鋁合金光電直讀發(fā)射光譜分析方法
GB/T 8170 數(shù)值修約規(guī)則與極限數(shù)值的表示和判定
GB/T 16474 變形鋁及鋁合金牌號表示方法
GB/T 17432 變形鋁及鋁合金化學(xué)成分分析取樣方法
GB/T 20975(所有部分) 鋁及鋁合金化學(xué)分析方法
GB/T 27675 鋁及鋁合金復(fù)合板、帶、箔材牌號表示方法
YS/T 870 高純鋁化學(xué)分析方法 痕量雜質(zhì)元素含量的測定 電感耦合等離子體質(zhì)譜法
3 要求
3.1 化學(xué)成分
3.1.1 變形鋁及鋁合金牌號表示方法應(yīng)符合GB/T 16474的規(guī)定。變形鋁及鋁合金的化學(xué)成分應(yīng)符合表2、表3、表A.1的規(guī)定。表2、表3和表A.1中極限數(shù)值表示應(yīng)符合表1規(guī)定。
表1 元素極限數(shù)值的表示
元素極限數(shù)值 極限數(shù)值表示形式a
＜0.001％ 0.000X
0.001％～＜0.01％ 0.00X或0.00XX
0.01％～＜0.10％ 精鋁 0.0XX
非精鋁及鋁合金 0.0X
0.10％～0.55％b 0.XX
＞0.55％ 0.X、X.X、XX.X
a 1XXX牌號Fe、Si之和的極限數(shù)值表示為0.XX或1.XX。
b 0.30％～0.55％范圍內(nèi)的極限數(shù)值表示為0.X0或0.X5。
3.1.2 復(fù)合材料牌號表示方法應(yīng)符合GB/T 27675的規(guī)定，其中的鋁合金材料化學(xué)成分應(yīng)符合本標(biāo)準(zhǔn)的規(guī)定。
3.1.3 食品行業(yè)用鋁及鋁合金材料應(yīng)控制w(Pb＋Hg＋Cd＋Cr6＋)≤0.01％、w(As)≤0.01％。
3.1.4 電器、電子設(shè)備行業(yè)用鋁及鋁合金材料應(yīng)控制w(Pb)≤0.1％、w(Hg)≤0.1％、w(Cd)≤0.01％、w(Cr6＋)≤0.1％。
3.1.5 包裝用鋁及鋁合金材料應(yīng)控制w(Pb＋Hg＋Cd＋Cr6＋)≤0.01％。
3.2 取樣
化學(xué)成分分析取樣應(yīng)符合GB/T 17432的規(guī)定。
3.3 成分分析
3.3.1 僅對表2、表3、表A.1中“Al”及“其他”欄之外有數(shù)值規(guī)定的元素進(jìn)行常規(guī)分析。當(dāng)懷疑非常規(guī)分析元素的質(zhì)量分?jǐn)?shù)超出了本標(biāo)準(zhǔn)的限定值時(shí)，生產(chǎn)者應(yīng)對這些元素進(jìn)行分析。
3.3.2 表2、表3、表A.1的化學(xué)成分分析方法應(yīng)符合GB/T 20975、GB/T 7999或YS/T 870的規(guī)定，“Co”元素含量小于0.005％的牌號或“Al”元素含量不小于99.90％的牌號化學(xué)成分仲裁分析應(yīng)采用YS/T 870規(guī)定的方法，“O”元素含量仲裁分析也可供需雙方協(xié)商確定，其余化學(xué)成分仲裁分析應(yīng)采用GB/T 20975規(guī)定的方法。
3.3.3 計(jì)算表2、表3、表A.1中“其他”的“合計(jì)”時(shí)，求和前各元素分析數(shù)值應(yīng)表示到0.XX％。
3.3.4 表2、表3、表A.1中≥99.00％的“Al”元素含量采用計(jì)算法確定：
——當(dāng)“Al”元素含量≥99.00％～99.90％時(shí)，用100.00％減去所有質(zhì)量分?jǐn)?shù)不小于0.010％的常規(guī)分析元素與懷疑超量的非常規(guī)分析的金屬元素的和，求和前各元素?cái)?shù)值應(yīng)表示到0.0X％；
——當(dāng)“Al”元素含量＞99.90％～99.99％時(shí)，用100.00％減去所有質(zhì)量分?jǐn)?shù)不小于0.0010％的常規(guī)分析元素與懷疑超量的非常規(guī)分析的金屬元素的和，求和前各元素?cái)?shù)值要表示到0.0XX％，求和后將總和修約到0.0X％；
——當(dāng)“Al”元素含量＞99.99％時(shí)，用100.00％減去所有質(zhì)量分?jǐn)?shù)不小于0.0010％的常規(guī)分析元素與懷疑超量的非常規(guī)分析的金屬元素的和，求和前各元素?cái)?shù)值要表示到0.00XX％，求和后將總和修約到0.00X％。
3.3.5 分析數(shù)值的判定采用修約比較法，數(shù)值修約規(guī)則按GB/T 8170的有關(guān)規(guī)定進(jìn)行，修約數(shù)位應(yīng)與本標(biāo)準(zhǔn)的表2、表3、表A.1規(guī)定的極限數(shù)位一致。
3.3.6 生產(chǎn)廠應(yīng)對3.1.3、3.1.4和3.1.5的控制元素進(jìn)行監(jiān)控分析，確保控制元素符合要求。
4 其他
4.1 不活躍合金的牌號和化學(xué)成分見附錄A。
4.2 四位字符牌號與曾用牌號的對照關(guān)系參見附錄B。
表2 國際四位數(shù)字牌號及化學(xué)成分
序號 牌號 化學(xué)成分(質(zhì)量分?jǐn)?shù))/％
Si Fe Cu Mn Mg Cr Ni Zn Ti Ag B Bi Ga Li Pb Sn V Zr 其他 Al
單個(gè) 合計(jì)
余量
注1：表中元素含量為單個(gè)數(shù)值時(shí)，“Al”元素含量為最低限，其他元素含量為最高限。
注2：元素欄中“—”表示該位置不規(guī)定極限數(shù)值，對應(yīng)元素為非常規(guī)分析元素，“其他”欄中“—”表示無極限數(shù)值要求。
注3：“其他”表示表中未規(guī)定極限數(shù)值的元素和未列出的金屬元素。
注4：“合計(jì)”表示不小于0.010％的“其他”金屬元素之和。
a 焊接電極及填料焊絲的w(Be)≤0.0003％。
b 主要用作包覆材料。
c 經(jīng)供需雙方協(xié)商并同意，擠壓產(chǎn)品與鍛件的w(Zr＋Ti)最大可達(dá)0.20％。
d 焊接電極及填料焊絲的w(Be)≤0.0005％。
e 硅質(zhì)量分?jǐn)?shù)為鎂質(zhì)量分?jǐn)?shù)的45％～65％。
f 經(jīng)供需雙方協(xié)商并同意，擠壓產(chǎn)品與鍛件的w(Zr＋Ti)最大可達(dá)0.25％。
g 見相應(yīng)空白欄中要求。
表3 國內(nèi)四位字符牌號及化學(xué)成分
序號 牌號 化學(xué)成分(質(zhì)量分?jǐn)?shù))/％ 備注
Si Fe Cu Mn Mg Cr Ni Zn Ti Ag B Bi Ga Li Pb Sn V Zr 其他 Al
單個(gè) 合計(jì)
余量
注1：表中元素含量為單個(gè)數(shù)值時(shí)，“Al”元素含量為最低限，其他元素含量為最高限。
注2：元素欄中“—”表示該位置不規(guī)定極限數(shù)值，對應(yīng)元素為非常規(guī)分析元素，“其他”欄中“—”表示無極限數(shù)值要求。
注3：“其他”表示表中未規(guī)定極限數(shù)值的元素和未列出的金屬元素。
注4：“合計(jì)”表示不小于0.010％的“其他”金屬元素之和。
a “Be”元素均按規(guī)定加入，其含量可不做分析。
b 鉚釘線材的w(Zn)≤0.03％。
c 見相應(yīng)空白欄中要求。
d 以“C”替代“B”時(shí)，“C”元素含量應(yīng)為0.0001％～0.05％。
e 以“C”替代“B”時(shí)，“C”元素含量應(yīng)為0.0001％～0.002％。
附 錄 A
(規(guī)范性附錄)
不活躍合金的牌號及化學(xué)成分
不活躍合金的牌號及化學(xué)成分見表A.1。
表A.1 不活躍合金的牌號及化學(xué)成分
序號 牌號 化學(xué)成分(質(zhì)量分?jǐn)?shù))/％
Si Fe Cu Mn Mg Cr Ni Zn Ti Ag B Bi Ga Li Pb Sn V Zr 其他 Al
單個(gè) 合計(jì)
余量
注1：表中元素含量為單個(gè)數(shù)值時(shí)，“Al”元素含量為最低限，其他元素含量為最高限。
注2：元素欄中“—”表示該位置不規(guī)定極限數(shù)值，對應(yīng)元素為非常規(guī)分析元素，“其他”欄中“—”表示無極限數(shù)值要求。
注3：“其他”表示表中未規(guī)定極限數(shù)值的元素和未列出的金屬元素。
注4：“合計(jì)”表示不小于0.010％的“其他”金屬元素之和。
a 焊接電極及填料焊絲的w(Be)≤0.0003％。
b RE表示以Ce、La、Y為主的混合稀土元素。
c RE表示以Ce、La為主的混合稀土元素。
d 見相應(yīng)空白欄中要求。
附 錄 B
(資料性附錄)
表3所涉字符牌號與其曾用牌號對照表
表3所涉字符牌號與其曾用牌號對照表見表B.1。
表B.1 表3所涉字符牌號與其曾用牌號對照表
表3所涉字符牌號 曾用牌號 表3所涉字符牌號 曾用牌號 表3所涉字符牌號 曾用牌號
