GB/T 33368-2023_English: PDF (GB/T33368-2023)
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High-strength and damage-resistant Al-Cu-Mg aluminium alloy plates, sheets and strips
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GB/T 33368-2023
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| Standard ID | GB/T 33368-2023 (GB/T33368-2023) | | Description (Translated English) | High-strength and damage-resistant Al-Cu-Mg aluminium alloy plates, sheets and strips | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H61 | | Classification of International Standard | 77.150.10 | | Word Count Estimation | 14,140 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 33368-2016 | | Drafting Organization | Southwest Aluminum (Group) Co., Ltd., Commercial Aircraft Corporation of China Ltd. Shanghai Aircraft Design and Research Institute, Nonferrous Metals Technology and Economic Research Institute Co., Ltd., Northeast Light Alloy Co., Ltd., Tianjin Zhongwang Aluminum Co., Ltd., Youyan Engineering Technology Research Institute Co., Ltd., Shandong Nanshan Aluminum Co., Ltd., AVIC Xi'an Aircraft Industry Group Co., Ltd., National Standard (Beijing) Inspection and Certification Co., Ltd., Shanghai Aviation Materials Structure Testing Co., Ltd. | | Administrative Organization | National Nonferrous Metals Standardization Technical Committee (SAC/TC 243) | | Proposing organization | China Nonferrous Metals Industry Association | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB/T 33368-2016 (GB/T33368-2016) | | Description (Translated English) | Aluminum alloy strips for television | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H61 | | Classification of International Standard | 77.150.10 | | Word Count Estimation | 10,195 | | Date of Issue | 2016-12-30 | | Date of Implementation | 2017-11-01 | | Drafting Organization | Southwest Aluminum (Group) Co., Ltd., Nonferrous Metals Technology and Economic Research Institute | | Administrative Organization | National Standard Committee on Nonferrous Metals (SAC/TC 243) | | Regulation (derived from) | National Standard Notice No.27 of 2016 | | Proposing organization | China Nonferrous Metals Industry Association | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee |
GB/T 33368-2023. High-strength and damage-resistant Al-Cu-Mg aluminum alloy plates and strips
ICS 77.150.10
CCSH61
National Standards of People's Republic of China
Replace GB/T 33368-2016
High-strength and damage-resistant Al-Cu-Mg aluminum alloy plate,
Strip
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Preface
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 33368-2016 "Aluminum Alloy Strips for Televisions". Compared with GB/T 33368-2016, except for structural adjustments
In addition to editorial changes, the main technical changes are as follows.
a) Changed the “Product Classification” (see Chapter 4, Chapter 3 of the.2016 edition);
b) "Chemical composition" (see 5.1, 3.2 of the.2016 edition), "Dimensional deviation" (see 5.2, 3.3 of the.2016 edition), "room temperature stretching" have been changed.
"Mechanical properties" (see 5.4, 3.4 of the.2016 edition), "Bending properties" (see 5.6, 3.5 of the.2016 edition), "Appearance quality" (see
5.14,.2016 version 3.6);
c) “Coating ratio” (see 5.3), “hardness” (see 5.5), “fatigue crack growth rate” (see 5.7), “fracture toughness” (see 5.8),
"Electrical conductivity" (see 5.9), "stress corrosion resistance" (see 5.10), "ultrasonic flaw detection acceptance level" (see 5.11), "low magnification structure"
(See 5.12), "Microstructure" (see 5.13);
d) Changed the “test method” (see Chapter 6, Chapter 4 of the.2016 edition);
e) Added “product qualification” (see Chapter 7) and “process control” (see Chapter 8 and Appendix A);
f) The “inspection rules” have been changed (see Chapter 9, Chapter 5 of the.2016 edition);
g) Changed the "marking, packaging, transportation, storage and quality certificate and order form (or contract) content" (see Chapter 10,.2016 edition
of Chapters 6 and 7).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Nonferrous Metals Industry Association.
This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This document was drafted by. Southwest Aluminum (Group) Co., Ltd., Commercial Aircraft Corporation of China, Shanghai Aircraft Design Research
Institute, Nonferrous Metals Technical and Economic Research Institute Co., Ltd., Northeast Light Alloy Co., Ltd., Tianjin Zhongwang Aluminum Co., Ltd., Youyan Engineering
Engineering Technology Research Institute Co., Ltd., Shandong Nanshan Aluminum Co., Ltd., AVIC Xi'an Aircraft Industry Group Co., Ltd., GB (Beijing)
Beijing) Inspection and Certification Co., Ltd., Shanghai Aviation Materials Structure Testing Co., Ltd.
The main drafters of this document. Zhang Zongquan, Pan Zhen, Ge Lixin, Li Hongping, Li Wei, Cong Fuguan, Du Hengan, Cheng Suling, Li Xiwu, Wang Zhixiong,
Sheng Yongqing, Ning Wenlei, Huang Jianjin.
The previous versions of this document and the documents it replaces are as follows.
---First released in.2016 as GB/T 33368-2016 "Aluminum Alloy Strip for TVs";
---This is the first revision.
High-strength and damage-resistant Al-Cu-Mg aluminum alloy plate,
Strip
1 Scope
This document specifies the product classification, technical requirements, test methods, product specifications for high-strength and damage-resistant Al-Cu-Mg aluminum alloy plates and strips.
Qualification identification, process control, inspection rules, marking, packaging, transportation, storage and quality certificate and order form (or contract) content.
This document applies to high-strength and damage-resistant Al-Cu-Mg aluminum alloy sheets (hereinafter referred to as "sheets") and strips (hereinafter referred to as "strips").
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 232 Bending test method for metal materials
GB/T 3190 Chemical composition of deformed aluminum and aluminum alloys
GB/T 6519-2023 Ultrasonic inspection method for deformed aluminum and magnesium alloy products
GB/T 8005.1 Aluminum and aluminum alloy terminology Part 1.Products and processing techniques
GB/T 26492.3 Defects in deformed aluminum and aluminum alloy ingots and processed products Part 3.Defects in plates and strips
GB/T 42793 General technical specifications for aluminum alloy plates for aviation use
YS/T 590 deformed aluminum and aluminum alloy flat ingots
YS/T 1619 Aluminum alloy ingot for aviation
3 Terms and definitions
The terms and definitions defined in GB/T 8005.1 and GB/T 26492.3 apply to this document.
4 product categories
4.1 Brand, status and size specifications
The brand, status and size specifications of the product should comply with the requirements in Table 1.When the buyer needs other grades, status and size specifications, the supplier and buyer will
The party shall negotiate and determine with reference to the "Deformed Aluminum and Aluminum Alloy Product Status and Performance Registration Form" and indicate it in the order form (or contract).
Table 1 Grade, status and size specifications
Brand status
Dimensions
mm
Thickness Width Plate Length
2124 T851 25.00~153.00 ≤3500 ≤20000
Aluminum clad 2524 T3 0.81~7.87 ≤2400 ≤10000
2H24 T351 25.40~38.10 ≤2400 ≤12000
......
GB/T 33368-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Aluminum Alloy Strips for Television
ISSUED ON: DECEMBER 30, 2016
IMPLEMENTED ON: NOVEMBER 1, 2017
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Requirements ... 5
4 Test Methods ... 8
5 Inspection Rules ... 9
6 Marking, Packaging, Transportation, Storage and Quality Certificate ... 11
7 Order Sheet (or contract) Content ... 12
Aluminum Alloy Strips for Television
1 Scope
This Standard stipulates the requirements, test methods, inspection rules, marking,
packaging, transportation, storage, quality certificate and order sheet (or contract)
content of aluminum alloy strips for television.
This Standard is mainly applicable to aluminum alloy strips (hereinafter referred to as
strips) for displayer, circuit board support and heat dissipation of LCD and LED flat
panel TV.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specific date, only versions with the specific date are
applicable to this document. In terms of references without a specific date, the latest
versions (including all the modification orders) are applicable to this document.
GB/T 232 Metallic Materials - Bend Test
GB/T 3190 Wrought Aluminum and Aluminum Alloy - Chemical Composition
GB/T 3199 Wrought Aluminum and Aluminum Alloy Products - Packing, Marking,
Transporting and Storing
GB/T 3880.3 Wrought Aluminum and Aluminum Alloy Plates, Sheets and Strips for
General Engineering - Part 3: Tolerances on Forms and Dimensions
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 Judgement
of Limiting Values
GB/T 16865 Test Pieces and Method for Tensile Test for Wrought Aluminum and
Magnesium Alloys Products
GB/T 17432 Methods for Sampling for Analyzing the Chemical Composition of
Wrought Aluminum and Aluminum Alloys
GB/T 20975 Methods for Chemical Analysis of Aluminum and Aluminum Alloys
4 Test Methods
4.1 Chemical Composition
4.1.1 The analytical method of chemical composition shall comply with the stipulations
in GB/T 20975 or GB/T 7999. The arbitration analysis method shall adopt the method
stipulated in GB/T 20975.
4.1.2 “A1” content shall be calculated in accordance with the method stipulated in GB/T
3190. In the calculation of “A1” content, take the sum of the analytical value of
conventional analytical elements and unconventional analytical elements, which are
suspected to be excessive, as “the sum of element content”.
4.1.3 The determination of analytical value shall adopt rounding-off comparison
method. The rounding-off rules of numerical value shall comply with relevant
stipulations in GB/T 8170. The rounding-off numerical digit shall be consistent with the
limit digit stipulated in GB/T 3190.
4.2 Dimensional Deviation
4.2.1 Dimensional rounding-off
Rounding-off of measured dimensions is not allowed. The determination method of
limit value shall comply with the stipulations in GB/T 8170.
4.2.2 Unevenness
Randomly take a sample (length: 2,000 mm) from strips (the sample shall try to include
the wavy part of the strips). Freely place the sample on a platform. In accordance with
the stipulations in GB/T 3880.3, detect wave height and number of waves.
4.2.3 Others
Other dimensional deviations shall be measured through measuring instruments of
corresponding accuracy, or, receive visual inspection.
4.3 Tensile Mechanical Property at Room Temperature
Room-temperature tensile test shall be conducted in accordance with the method
stipulated in GB/T 16865.
4.4 Bending Performance
Room-temperature bending performance shall be conducted in accordance with the
method stipulated in GB/T 232.
4.5 Appearance Quality
shall be determined as unqualified.
6 Marking, Packaging, Transportation, Storage and
Quality Certificate
6.1 Marking
6.1.1 Product marking
Each coil of strips which are qualified in the inspection shall have an attached label,
which includes the following content:
a) Product name;
b) Nameplate;
c) Status;
d) Dimensions;
e) Batch No. or coil No. of strips;
f) Net weight;
g) Inspection stamp of the supply-side’s quality inspection department (or quality
inspector’s signature or stamp)
6.1.2 Marking of packing box
The marking of strips’ packing box shall comply with the stipulations in GB/T 3199.
6.2 Packaging, Transportation and Storage
Packaging, transportation and storage of strips shall comply with the stipulations in
GB/T 3199. When the demand-side has special requirements towards the packaging
mode of strips, the demand-side and the supply-side shall determine them through
negotiation; this content shall be indicated in the order sheet (or contract).
6.3 Quality Certificate
Each coil of strips shall have an attached product quality certificate, which indicates:
a) The supply-side’s name;
b) Product name;
c) Nameplate and status;
......
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