YS/T 492-2021 PDF English
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| YS/T 492-2021 | English | 905 |
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Element Additive for aluminum and aluminum alloys
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| YS/T 492-2012 | English | 959 |
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Element additive for aluminium and aluminium alloys
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| YS/T 492-2005 | English | 399 |
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Eliment additive for aluminium and aluminium alloy
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YS/T 492-2021: Element Additive for aluminum and aluminum alloys---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YST492-2021
YS
NONFERROUS INDUSTRY STANDARD
ICS 71.100.10
CCS H 30
Replacing YS/T 492-2012
Element additive for aluminum and aluminum alloys
Issued on. AUGUST 21, 2021
Implemented on. FEBRUARY 01, 2022
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Product categories... 6
5 Quality assurance... 8
6 Requirements... 8
7 Test methods... 13
8 Inspection rules... 15
9 Signs, packaging, transportation, storage, quality certificate... 18
10 Contents of order form (or contract)... 20
Appendix A (Informative) Quality assurance... 21
Appendix B (Normative) Determination of iron content in iron additives... 23
Appendix C (Normative) Determination of manganese content in manganese additives
... 26
Appendix D (Normative) Determination of copper content in copper type additives 29
Appendix E (Normative) Determination of chromium content in chromium type
additives... 32
Appendix F (Normative) Determination of titanium content in titanium type additives
... 38
Appendix G (Normative) Determination of nickel content in nickel type additives.. 40
Appendix H (Normative) Determination of impurity content of aluminum type
additives... 43
Appendix I (Normative) Determination of moisture content of additives... 51
Appendix J (Normative) Determination of casting yield... 53
Appendix K (Normative) Drawing of casting yield curve... 56
References... 60
1 Scope
This document stipulates the product classification, quality assurance, requirements,
test methods, inspection rules and markings, packaging, transportation, storage, quality
certificate and order form (or contract) content of element additives for aluminum and
aluminum alloy.
This document applies to additives for formulating or adjusting the chemical
composition of aluminum and aluminum alloys (hereinafter referred to as "additives").
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing, marking,
transporting and storing
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 7999 Optical emission spectrometric analysis method of aluminum and
aluminum alloys
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 Product categories
4.1 Designation representation method
Additive designations are represented by English letters followed by two digits and
element symbols. The English letters represent the type of additive; the two digits
represent the nominal content of the main element; the element symbol represents the
main element of the additive. Additives are divided into three types, according to flux
type.
4.2 Designation, name, category, dimensions, typical illustrations
4.2.1 See Table 1 for the designation, name, category, overall dimensions of the
additives.
a Potassium fluoroaluminate in the flux will increase the fluorine content in the aluminum slag.
4.2.2 Typical illustrations of additives are as shown in Figure 1 and Figure 2.
Figure 1 -- Illustration of round cake additives
Figure 2 -- Illustration of special-shaped additives
4.2.3 When the buyer requires other designations, it shall be determined through
negotiation between the supplier and the buyer; it shall be specifically noted in the order
form (or contract).
5 Quality assurance
See Appendix A for additive quality assurance.
6 Requirements
6.1 Chemical composition
6.1.1 Aluminum type additives
The chemical compositions of aluminum type iron, aluminum type manganese,
aluminum type copper, aluminum type chromium, aluminum type titanium, aluminum
type nickel additives shall comply with the requirements in Tables 2 ~ 7, respectively.
6.1.2 Other additives
6.1.2.1 The main element content in the chemical composition of potassium
fluoroaluminate type and mixed type additives shall be controlled within ±3% of the
nominal content.
6.2 Moisture
The moisture content of the additive shall not be greater than 0.2%.
6.3 Density
The density of round cake additives shall comply with the requirements in Table 8.
6.4 Casting yield efficiency
6.5 Anti-fall performance
After the drop test of round cake aluminum type additives, the weight loss shall not
exceed 3%.
6.6 Fracture organization
There shall be no particle aggregates and inclusions in the additive fracture organization.
Typical illustrations are as shown in Figures 3 ~ 5.
6.7 Powder content
The content of round cake aluminum type additive powder shall not exceed 1%; it shall
not exceed 3% for other types.
7 Test methods
7.1 Chemical composition
7.1.1 The analysis method for the main element content of additives shall comply with
the provisions of Appendix B ~ Appendix G.
7.1.2 The analysis method for the fluorine content of aluminum additives shall be
determined, through negotiation between the supplier and the purchaser. The analysis
method for the content of other impurity elements shall comply with the provisions of
Appendix H.
7.1.4 The rounding off comparison method is used to determine the analytical value.
The numerical rounding rules are in accordance with the provisions of GB/T 8170.The
rounding digits are consistent with the limit digits in Tables 2 ~ 7 of this document.
7.2 Moisture
The moisture content of additives shall be determined according to the method specified
in Appendix I.
7.3 Density
7.3.1 Weigh the mass of the specimen, recorded it as ma.
7.3.2 Measure the diameter of the specimen, recorded as D. Measure the thickness of
the specimen, recorded as T.
7.4 Casting yield efficiency
7.4.1 Casting yield
The casting yield of additives is measured according to the method specified in
Appendix J.
7.4.2 Casting yield curve
The casting yield curve is measured according to the method specified in Appendix K.
7.5 Anti-fall test
7.5.1 Weigh the mass of the specimen, recorded as mb. Drop it freely to the cement floor
at a height of 1.0 m. Select the largest block. Weigh the mass of the largest block,
recorded as mc.
7.5.2 Calculate the mass loss G of the specimen according to formula (2); the value is
expressed in %.
7.7 Powder content
7.7.1 Take a specimen. Remove the packaging. Weigh the total mass of the specimen,
recorded as md. Weigh the mass of the powder, recorded as me.
7.7.2 Calculate the powder content A, according to formula (3); the value is expressed
in %.
8 Inspection rules
8.1 Inspection
8.1.1 The additives shall be inspected by the supplier, to ensure that the product quality
complies with the provisions of this document and the order form (or contract);
meanwhile a quality certificate shall be filled out.
8.3 Weighting
Products shall be checked by weight.
8.4 Inspection classification
Product inspection is divided into exit-factory inspection and regular inspection.
8.5 Inspection items
8.5.1 Exit-factory inspection and regular inspection items shall comply with the
provisions of Table 10.
8.5.2 The supplier shall conduct regular inspection, at least once every six months.
8.6 Sampling
Additive sampling shall comply with the provisions of Table 11.
8.7 Judgment of inspection results
8.7.1 When the chemical composition of any sample is unqualified, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still samples
that are unqualified in the repeated test results, the batch of products will be deemed
unqualified.
8.7.5 When the anti-fall performance of any sample fails to meet the standard, it shall
take double quantity of samples from the batch of products (including the batch of
products represented by the unqualified sample) for repeated testing. If all repeated test
results are qualified, the batch of products will be deemed qualified. If there are still
sample fractures that are unqualified in the repeated test results, the batch of products
will be deemed unqualified.
8.7.6 When the fracture of any sample fails to meet the standard, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still sample
fractures that are unqualified in the repeated test results, the batch of products will be
deemed unqualified.
8.7.8 When the appearance quality of any sample is unqualified, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still samples
that are unqualified in the repeated test results, the batch of products will be deemed
unqualified.
9 Signs, packaging, transportation, storage, quality certificate
9.1 Signs
9.1.1 Product signs
Print the following content identification on the products that have passed the inspection
(OR affix a label containing the following content).
9.1.2 Packing box signs
The packaging box signs of additives shall comply with the requirements of GB/T 3199.
9.2 Packaging
Additives should be packaged in kraft paper or aluminum foil. The color identification
of packaging materials is distinguished, according to the type of additives. The specific
color identification shall comply with the provisions of Table 12.
9.4 Quality certificate
Each batch of additives shall be accompanied by a product quality certificate, stating.
YS/T 492-2021
YS
NONFERROUS INDUSTRY STANDARD
ICS 71.100.10
CCS H 30
Replacing YS/T 492-2012
Element additive for aluminum and aluminum alloys
Issued on. AUGUST 21, 2021
Implemented on. FEBRUARY 01, 2022
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Product categories... 6
5 Quality assurance... 8
6 Requirements... 8
7 Test methods... 13
8 Inspection rules... 15
9 Signs, packaging, transportation, storage, quality certificate... 18
10 Contents of order form (or contract)... 20
Appendix A (Informative) Quality assurance... 21
Appendix B (Normative) Determination of iron content in iron additives... 23
Appendix C (Normative) Determination of manganese content in manganese additives
... 26
Appendix D (Normative) Determination of copper content in copper type additives 29
Appendix E (Normative) Determination of chromium content in chromium type
additives... 32
Appendix F (Normative) Determination of titanium content in titanium type additives
... 38
Appendix G (Normative) Determination of nickel content in nickel type additives.. 40
Appendix H (Normative) Determination of impurity content of aluminum type
additives... 43
Appendix I (Normative) Determination of moisture content of additives... 51
Appendix J (Normative) Determination of casting yield... 53
Appendix K (Normative) Drawing of casting yield curve... 56
References... 60
1 Scope
This document stipulates the product classification, quality assurance, requirements,
test methods, inspection rules and markings, packaging, transportation, storage, quality
certificate and order form (or contract) content of element additives for aluminum and
aluminum alloy.
This document applies to additives for formulating or adjusting the chemical
composition of aluminum and aluminum alloys (hereinafter referred to as "additives").
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing, marking,
transporting and storing
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 7999 Optical emission spectrometric analysis method of aluminum and
aluminum alloys
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 Product categories
4.1 Designation representation method
Additive designations are represented by English letters followed by two digits and
element symbols. The English letters represent the type of additive; the two digits
represent the nominal content of the main element; the element symbol represents the
main element of the additive. Additives are divided into three types, according to flux
type.
4.2 Designation, name, category, dimensions, typical illustrations
4.2.1 See Table 1 for the designation, name, category, overall dimensions of the
additives.
a Potassium fluoroaluminate in the flux will increase the fluorine content in the aluminum slag.
4.2.2 Typical illustrations of additives are as shown in Figure 1 and Figure 2.
Figure 1 -- Illustration of round cake additives
Figure 2 -- Illustration of special-shaped additives
4.2.3 When the buyer requires other designations, it shall be determined through
negotiation between the supplier and the buyer; it shall be specifically noted in the order
form (or contract).
5 Quality assurance
See Appendix A for additive quality assurance.
6 Requirements
6.1 Chemical composition
6.1.1 Aluminum type additives
The chemical compositions of aluminum type iron, aluminum type manganese,
aluminum type copper, aluminum type chromium, aluminum type titanium, aluminum
type nickel additives shall comply with the requirements in Tables 2 ~ 7, respectively.
6.1.2 Other additives
6.1.2.1 The main element content in the chemical composition of potassium
fluoroaluminate type and mixed type additives shall be controlled within ±3% of the
nominal content.
6.2 Moisture
The moisture content of the additive shall not be greater than 0.2%.
6.3 Density
The density of round cake additives shall comply with the requirements in Table 8.
6.4 Casting yield efficiency
6.5 Anti-fall performance
After the drop test of round cake aluminum type additives, the weight loss shall not
exceed 3%.
6.6 Fracture organization
There shall be no particle aggregates and inclusions in the additive fracture organization.
Typical illustrations are as shown in Figures 3 ~ 5.
6.7 Powder content
The content of round cake aluminum type additive powder shall not exceed 1%; it shall
not exceed 3% for other types.
7 Test methods
7.1 Chemical composition
7.1.1 The analysis method for the main element content of additives shall comply with
the provisions of Appendix B ~ Appendix G.
7.1.2 The analysis method for the fluorine content of aluminum additives shall be
determined, through negotiation between the supplier and the purchaser. The analysis
method for the content of other impurity elements shall comply with the provisions of
Appendix H.
7.1.4 The rounding off comparison method is used to determine the analytical value.
The numerical rounding rules are in accordance with the provisions of GB/T 8170.The
rounding digits are consistent with the limit digits in Tables 2 ~ 7 of this document.
7.2 Moisture
The moisture content of additives shall be determined according to the method specified
in Appendix I.
7.3 Density
7.3.1 Weigh the mass of the specimen, recorded it as ma.
7.3.2 Measure the diameter of the specimen, recorded as D. Measure the thickness of
the specimen, recorded as T.
7.4 Casting yield efficiency
7.4.1 Casting yield
The casting yield of additives is measured according to the method specified in
Appendix J.
7.4.2 Casting yield curve
The casting yield curve is measured according to the method specified in Appendix K.
7.5 Anti-fall test
7.5.1 Weigh the mass of the specimen, recorded as mb. Drop it freely to the cement floor
at a height of 1.0 m. Select the largest block. Weigh the mass of the largest block,
recorded as mc.
7.5.2 Calculate the mass loss G of the specimen according to formula (2); the value is
expressed in %.
7.7 Powder content
7.7.1 Take a specimen. Remove the packaging. Weigh the total mass of the specimen,
recorded as md. Weigh the mass of the powder, recorded as me.
7.7.2 Calculate the powder content A, according to formula (3); the value is expressed
in %.
8 Inspection rules
8.1 Inspection
8.1.1 The additives shall be inspected by the supplier, to ensure that the product quality
complies with the provisions of this document and the order form (or contract);
meanwhile a quality certificate shall be filled out.
8.3 Weighting
Products shall be checked by weight.
8.4 Inspection classification
Product inspection is divided into exit-factory inspection and regular inspection.
8.5 Inspection items
8.5.1 Exit-factory inspection and regular inspection items shall comply with the
provisions of Table 10.
8.5.2 The supplier shall conduct regular inspection, at least once every six months.
8.6 Sampling
Additive sampling shall comply with the provisions of Table 11.
8.7 Judgment of inspection results
8.7.1 When the chemical composition of any sample is unqualified, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still samples
that are unqualified in the repeated test results, the batch of products will be deemed
unqualified.
8.7.5 When the anti-fall performance of any sample fails to meet the standard, it shall
take double quantity of samples from the batch of products (including the batch of
products represented by the unqualified sample) for repeated testing. If all repeated test
results are qualified, the batch of products will be deemed qualified. If there are still
sample fractures that are unqualified in the repeated test results, the batch of products
will be deemed unqualified.
8.7.6 When the fracture of any sample fails to meet the standard, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still sample
fractures that are unqualified in the repeated test results, the batch of products will be
deemed unqualified.
8.7.8 When the appearance quality of any sample is unqualified, it shall take double
quantity of samples from the batch of products (including the batch of products
represented by the unqualified sample) for repeated testing. If all repeated test results
are qualified, the batch of products will be deemed qualified. If there are still samples
that are unqualified in the repeated test results, the batch of products will be deemed
unqualified.
9 Signs, packaging, transportation, storage, quality certificate
9.1 Signs
9.1.1 Product signs
Print the following content identification on the products that have passed the inspection
(OR affix a label containing the following content).
9.1.2 Packing box signs
The packaging box signs of additives shall comply with the requirements of GB/T 3199.
9.2 Packaging
Additives should be packaged in kraft paper or aluminum foil. The color identification
of packaging materials is distinguished, according to the type of additives. The specific
color identification shall comply with the provisions of Table 12.
9.4 Quality certificate
Each batch of additives shall be accompanied by a product quality certificate, stating.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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