GB/T 15115-2024 PDF English
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Die casting aluminum alloys
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GB/T 15115-2024: PDF in English (GBT 15115-2024) GB/T 15115-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.10
CCS J 31
Replacing GB/T 15115-2009
Die casting aluminum alloys
ISSUED ON. APRIL 25, 2024
IMPLEMENTED ON. APRIL 25, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Alloy designations and codes... 6
5 Technical requirements... 7
6 Test methods... 8
7 Inspection rules... 9
8 Marking, quality certificate, packaging, transportation and storage... 10
Annex A (informative) Comparison of major die casting aluminum alloy codes at home
and abroad... 12
Annex B (informative) Die casting aluminum alloy performance and other
characteristics... 13
Annex C (informative) Characteristics and application examples of die casting
aluminum alloys... 15
Annex D (normative) Testing method for slag inclusion in die casting aluminum alloy
... 16
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
This document replaces GB/T 15115-2009 "Die casting aluminum alloys". Compared
with GB/T 15115-2009, in addition to structural adjustments and editorial changes, the
main technical changes in this document are as follows.
a) Add die casting aluminum alloy designations YZAlSi12Fe, YZAlSi10MnMg,
YZAlSi7MnMg and chemical compositions (see 5.1 of this Edition);
b) Add technical requirements for slag inclusion (see 5.2 of this Edition);
c) Add technical requirements for appearance and fracture (see 5.3 of this Edition);
d) Change the requirements for inspection methods and inspection rules (see Chapter
6, Chapter 7 of this Edition; Chapter 5 of Edition 2009);
e) Change the marking, quality instructions, packaging, transportation and storage
(see Chapter 8 of this Edition; Chapter 6 of Edition 2009);
f) Add the testing method for slag inclusions in die casting aluminum alloys (see
Annex D of this Edition).
Attention is drawn to the possibility that some of the elements of this document may be
the subject of patent rights. The issuing authority shall not be held responsible for
identifying any or all such patent rights.
This document was proposed by and shall be under the jurisdiction of National
Technical Committee on Casting of Standardization Administration of China (SAC/TC
54).
The drafting organizations of this document. Guangdong Hongtu Technology Co., Ltd.,
Baoding Lizhong Dong'an Light Alloy Parts Manufacturing Co., Ltd., Wanfeng
Magnesium Redding New Materials Technology Co., Ltd., Anhui Shunfu Precision
Technology Co., Ltd., Chongqing Shunduli Motorcycle Co., Ltd., Shenzhen Gersler
Technology Co., Ltd., CITIC Dicastal Co., Ltd., Ningbo Aikodi Precision Parts Co.,
Ltd., Zhejiang Baokang Wheel Manufacturing Co., Ltd., Chongqing Meilixin
Technology Co., Ltd., Dongguan Shijie Huafeng Metal Co., Ltd., Shanghai Weilan
Power Technology Co., Ltd., Hubei Xinjinyang Resources Co., Ltd., Wenzhou Ruiming
Industrial Co., Ltd., Chongqing Jiantao Aluminum Co., Ltd., Huajin New Materials
Research Institute (Guangzhou) Co., Ltd., Jiangsu Kate Auto Parts Co., Ltd.,
Guangdong Hongbang Metal Aluminum Co., Ltd., Jiangsu Mayer Auto Parts Co., Ltd.,
Jiangxi Baotai Nonferrous Metals Group Co., Ltd., Chongqing University, Foshan
Die casting aluminum alloys
1 Scope
This document specifies the designations and codes, technical requirements, test
methods, inspection rules and markings, quality certificates, packaging, transportation
and storage of die casting aluminium alloys.
This document is applicable to the production and inspection of die casting aluminum
alloy materials (aluminum alloy liquid and aluminum alloy ingots).
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 5611, Foundry terminology
GB/T 7999, Optical emission spectrometric analysis method of aluminum and
aluminum alloys
GB/T 20975.3, Methods for chemical analysis of aluminium and aluminium alloys -
- Part 3.Determination of copper content
GB/T 20975.4, Methods for chemical analysis of aluminium and aluminium alloys -
- Part 4.Determination of iron content
GB/T 20975.5, Methods for chemical analysis of aluminium and aluminium alloys -
- Part 5.Determination of silicon content
GB/T 20975.7, Methods for chemical analysis of aluminium and aluminium alloys -
- Part 7.Determination of manganese content
GB/T 20975.8, Methods for chemical analysis of aluminium and aluminium alloys -
- Part 8.Determination of zinc content
GB/T 20975.10, Methods for chemical analysis of aluminium and aluminium alloys-
-Part 10.Determination of tin content
GB/T 20975.11, Methods for chemical analysis of aluminium and aluminium alloys
-- Part 11.Determination of lead content
GB/T 20975.12, Methods for chemical analysis of aluminium and aluminium alloys
-- Part 12.Determination of titanium content
GB/T 20975.14, Methods for chemical analysis of aluminium and aluminium alloys
-- Part 14.Determination of nickel content
GB/T 20975.16, Methods for chemical analysis of aluminium and aluminium alloys
-- Part 16.Determination of magnesium content
GB/T 20975.17, Methods for chemical analysis of aluminium and aluminium alloys
-- Part 17.Determination of strontium content
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 5611 apply.
4 Alloy designations and codes
4.1 Representation methods for alloy designations
The aluminum alloy designation for die casting is composed of the chemical symbols
of aluminum and the main alloying elements. The main alloying elements are followed
by a number representing their nominal mass fraction (the nominal mass fraction is the
rounded integer value of the average mass fraction of the element).
The letters "YZ" ("Y" and "Z" are the first letters of the Chinese pinyin for "Ya" and
"Zao" respectively) in front of the alloy designation indicate that it is a die casting alloy.
4.2 Representation methods for alloy codes
In the alloy code, "YL" ("Y" and "L" are the first letters of the Chinese pinyin for "Ya"
and "Lü" respectively) indicates die casting aluminum alloy. The first digits 1, 2, 3, and
4 after YL respectively represent Al-Si, Al-Cu, Al-Mg, and Al-Zn series alloys,
representing the alloy code. The second and third digits after YL are the sequence
number.
The code representation method is as follows.
Example.
7.4 Judgement rules
7.4.1 If the chemical composition test fails, double the number of samples can be taken
for reinspection. If all the reinspection results are qualified, the batch of products is
considered qualified. If the reinspection results are still unqualified, the batch of
products is considered unqualified.
7.4.2 If the slag inclusion test fails, it is allowed to take double the number of samples
for reinspection. If all the reinspection results are qualified, the batch of products is
judged to be qualified. If the reinspection results are still unqualified, the batch of
products is judged to be unqualified.
7.4.3 If the appearance and fracture inspection fail, the batch of products will be deemed
unqualified.
8 Marking, quality certificate, packaging, transportation and
storage
8.1 Marking
8.1.1 Each packaging unit (ingot bundle, insulation bag) of die casting aluminum alloy
shall have the following mark. When the purchaser has special requirements, it shall be
determined by negotiation between the supplier and the buyer.
a) Material designation;
b) Manufacturer’s trademark or symbol;
c) Year, month and day of manufacture;
d) Other marks specified by the customer.
8.1.2 The number identification, production batch number and material designation of
the die casting aluminum alloy liquid insulation bag shall be clear. The identification
shall be in a fixed position on the insulation bag and consistent with the content of the
delivery note. The insulation bags shall not be mixed.
8.2 Quality certificate
Each batch of die casting aluminum alloy shall be accompanied by a quality certificate,
which shall at least include.
a) Supplier name and trademark;
b) Product name and designation (or code);
c) Batch number;
d) Net weight and number of pieces (bundles);
e) Analytical test results and inspection department stamp;
f) Reference to this document;
g) Production date.
8.3 Packaging
8.3.1 Die casting aluminum alloy ingots shall be bundled. Each designation shall be
bundled separately. The packaging shall be firm to ensure that it will not fall apart
during transportation.
8.3.2 The die casting aluminum alloy liquid shall be packed in thermal insulation
packaging that meets the requirements.
8.4 Transportation
8.4.1 During transportation, die casting aluminum alloy ingots shall meet the stacking
requirements and be protected from rain, moisture, dropping and severe collision.
8.4.2 The transportation of die casting aluminum alloy liquid shall comply with relevant
safety requirements. Measures shall be taken to prevent the insulation bag from tipping
over, falling and rain during transportation.
8.5 Storage
Die casting aluminum alloys shall be stored in dry, well-ventilated warehouses without
harmful gases. They shall not be stored together with acids, alkalis or other corrosive
chemicals. They shall also be protected from rain and moisture.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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