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GB/T 33823-2017

Chinese Standard: 'GB/T 33823-2017'
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Detail Information of GB/T 33823-2017; GB/T33823-2017
Description (Translated English): Aluminum alloy die forgings for control arms of passenger vehicles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H61
Classification of International Standard: 77.150.10
Word Count Estimation: 8,895
Date of Issue: 2017-05-31
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 231.1; GB/T 3190; GB/T 3199; GB/T 3246.1; GB/T 3246.2; GB/T 7999; GB/T 8545-2012; GB/T 16865; GB/T 17432; GB/T 30512; GB/T 18851.1; GB/T 18851.2; GB/T 18851.3; GB/T 18851.4; GB/T 18851.5; GB/T 18851.6; GB/T 20975.1; GB/T 20975.2; GB/T 20975.3; GB/T 2
Drafting Organization: Suzhou Huixian Automobile Industry Co., Ltd., China First Automobile Co., Ltd. Technology Center, Dongfeng Automobile Company, Chongqing Changan Automobile Co., Ltd., Nonferrous Metals Technology Economy Research Institute, Guangdong Province Industrial Analysis and Testing Center, the National Nonferrous Metals Quality Supervision and Inspection Center
Administrative Organization: National Standard Committee on Nonferrous Metals (SAC/TC 243)
Proposing organization: China Nonferrous Metals Industry Association
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee
Summary: This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificates and orders (or contracts) for aluminum alloy die forgings for passenger car control arms. This standard applies to passenger car control arm with aluminum alloy die forging (hereinafter referred to as forgings).

GB/T 33823-2017
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Aluminum alloy die forgings for
control arms of passenger vehicle
乘用车控制臂用铝合金模锻件
ISSUED ON. MAY 31, 2017
IMPLEMENTED ON. DECEMBER 1, 2017
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
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Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Requirements ... 5 
5 Test methods ... 7 
6 Inspection rules ... 8 
7 Mark, packaging, transport, storage and quality certificate... 11 
8 Order (or contract) content ... 12 
Foreword
This Standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This Standard was proposed by China Nonferrous Metals Industry
Association.
This Standard shall be under the jurisdiction of National Technical Committee
on Nonferrous Metals of Standardization Administration of China (SAC/TC
243).
Main drafting organizations of this Standard. Suzhou Nonferrous Metals
Research Institute Co., Ltd., Jiangsu CNPT-Rabily Industrial Co., Ltd.., Wuhu
Hetian Automobile Industry Co., Ltd., China First Automobile Co., Ltd.
Technology Center, Dongfeng Motor Corporation, Chongqing Changan
Automobile Co., Ltd., Nonferrous Metals Technology and Economic Research
Institute, Guangdong Industrial Analysis and Testing Center, National
Nonferrous Metals Quality Supervision and Inspection Center.
Main drafters of this Standard. Guo Shijie, Zhang Hai, Wang Lexi, Chen Lai,
Yang Chunxiu, Wen Cheng, Jin Guangtao, Oan Qijun, Zhang Yihe, Wang
Zezhong, Liu Bo, Xi Huan, Zhang Xinhong, Li Pu.
Aluminum alloy die forgings for
control arms of passenger vehicle
1 Scope
This Standard specifies the requirements, test methods, inspection rules,
marks, packaging, transport, storage, quality certificate and order (contract)
of aluminum alloy die forgings for control arms of passenger vehicle.
This Standard is applicable to aluminum alloy die forgings for control arms of
passenger vehicle (hereinafter referred to as the forging).
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 231.1, Metallic materials - Brinell hardness test - Part 1. Test method
GB/T 3190, Wrought aluminium and aluminium alloys - Chemical
composition limits
GB/T 3199, Wrought Aluminium and Aluminium Alloy Products - Packing,
Marking, Transporting and Storing
GB/T 3246.1, Inspection method for structure of wrought aluminum and
aluminum alloy products Part 1. Inspection method for microstructure
GB/T 3246.2, Inspection method for structure of wrought aluminum and
aluminum alloy products - Part 2. Inspection method for macrostructure
GB/T 7999, Optical emission spectrometric analysis method of aluminum
and aluminum alloys
GB/T 8545-2012, Die forgings of aluminium and aluminium alloy -
Dimensional tolerance and machining allowance
GB/T 16865, Test pieces and method for tensile test for wrought aluminium
and magnesium alloys products
pores, folds, segregation, aggregation and non-metallic inclusions.
4.6.3 In any section of the forging, there is no oxide film defect that is
greater than 0.3 mm.
4.6.4 The cross section of the product is not allowed to have coarse
recrystallization grain. The depth of the coarse recrystallization grain layer in
the surface layer shall not exceed 3 mm. At the parting line, the depth of the
coarse recrystallization grain layer shall not exceed 8 mm; the width shall not
exceed 7 mm.
4.7 Microstructure
The microstructure is not allowed to over-burn.
4.8 Appearance quality
4.8.1 A slight bump, scratches, pressure pit, scratches and other defects
are allowed.
4.8.2 The forging on the forging surface is not allowed to repair; or material
shortage, peelings, bubbles, cracks, layers, stacks and other defects are not
allowed.
4.9 Banned substance
The forging shall meet requirements for automobile banned substances
specified in GB/T 30512.
5 Test methods
5.1 Chemical composition
The analysis method for chemical composition shall comply with GB/T 20975
or GB/T 7999. The arbitration analysis shall use the method specified in GB/T
20975.
5.2 Size deviation
The measurement of size deviation of the forging shall comply with GB/T
8545-2012.
5.3 Mechanical properties
The test method for tensile mechanical properties at room temperature shall
comply with GB/T 16865.
5.4 Brinell hardness
The test method for Brinell hardness shall comply with GB/T 231.1.
5.5 Macrostructure
The test method for macrostructure shall comply with GB/T 3246.2.
5.6 Microstructure
The test method for microstructure shall comply with GB/T 3246.1.
5.7 Appearance quality
Appearance quality is visually inspected under natural scattered light. The
fluorescence penetration test shall be carried out according to GB/T 18851.
5.8 Banned substance
The test method for banned substance shall be carried out according to GB/T
30512.
6 Inspection rules
6.1 Inspection and acceptance
6.1.1 The forging shall be inspected by the supplier to ensure that the
product quality in line with this Standard and the order (or contract)
requirements. Fill in the quality certificate.
6.1.2 The purchaser shall inspect the product received in accordance with
the provisions of this Standard. When the inspection results do not comply
with this Standard and the order (or contract), it shall be put forward in written
form by the supplier and solved by the supplier and the purchaser via
negotiation. The objection to the appearance quality and size deviation shall
be put forward within one month from the date of receipt of the product. Any
objection to other performance shall be put forward within 3 months from the
date of receipt of the product. For arbitration, it may entrust an organization
approved by the supplier and the purchaser. The sampling shall be carried
out by the supplier and the purchaser at the purchaser’s.
6.2 Batch
The forging shall be submitted in batch for acceptance. Each batch shall
consist of the products of same designation, status and same thermal
treatment furnace number. The number of each batch shall be confirmed by
the supplier.
6.3 Metering
7 Mark, packaging, transport, storage and quality
certificate
7.1 Mark
7.1.1 The packaging box mark of the forging shall comply with GB/T 3199.
7.1.2 On the qualified die forging, it shall print the following marks or labels.
a) alloy designation and supply status;
b) thermal treatment number;
c) product’s mark;
d) batch number or date of produ......
Related standard:   GB/T 33824-2017  GB/T 27685-2019
   
 
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