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GB/T 1196-2008 English PDF (GB/T1196-2008)

GB/T 1196-2008 English PDF (GB/T1196-2008)

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GB/T 1196-2008: Unalloyed aluminium ingots for remelting
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GB/T 1196-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.10
H 61
Replacing GB/T 1196-2002, GB 12768-1991, GB/T 8644-2000
Unalloyed aluminium ingots for remelting
(ISO 115.2003, Unalloyed aluminium ingots for remelting –
Classification and composition, MOD)
ISSUED ON. JUNE 09, 2008
IMPLEMENTED ON. DECEMBER 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
3. No action is required - Full-copy of this standard will be automatically and
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Requirements... 5
4 Test methods ... 6
5 Inspection rules ... 6
6 Marking, packaging, transportation, storage ... 8
7 Order (or contract) content ... 10
Annex A (informative) Comparison of clause number of this Standard with
clause number of ISO 115. 2003 ... 11
Foreword
This Standard modified ISO 115.2003 “Unalloyed aluminium ingots for remelting -
Classification and composition” and is redrafted according to ISO 115.2003. For the
purpose of comparison, a table of comparison between the clause number of this
Standard and the clause number of the corresponding International Standard is listed
in the informative Annex A.
This Standard has modified ISO 115.2003 when adopting. These technical differences
are identified by the vertical single line in the margins of the clauses in which they
relate. The main technical differences are as follows.
- Fine unalloyed aluminium ingot designations in Table 1 and series of designations
in Table 2 of ISO 115.2003 are not used;
- ADD designations. Al99.90, Al99.85, Al99.60, Al99.50, Al99.00;
- ADD the specific requirements for steel strips for packaging;
- DELETE the normative Annex A in ISO 115.2003.
This Standard replaces GB/T 1196 -2002 “Unalloyed aluminium ingots for remelting”,
GB 12768-1991 “Electrical aluminium ingots for remelting” and GB/T 8644-2000 “Fine
aluminium ingots for remelting”.
Compared with GB/T 1196-2002, GB 12768-1991 and GB/T 8644-2000, main changes
of this Standard are as follows.
- INTEGRATE the designations of GB/T 1196 -2002 and GB 12768-1991;
- INCORPORATE the relevant fine aluminium ingot designations INTO YS/T 665-
2008;
- DELETE the designation A199.70 in GB/1696-2002 and the designation Al99.65E
in GB 12768-1991;
- ADD the designation Al99.6E, which cancels “A” in the original designation
Al99.70A and others remain the same;
- ADJUST Si and Cu in A199.7E of GB 12768-1991, and ADD three impurity
elements Mg, Zn and Mn.
- RE-SPECIFY heavy metal elements Cd, Pb, As, and ADD the requirements for
Hg;
- RE-SPECIFY B, Cr and Mn + Ti + Cr + V in Al99.7E and Al99.6E;
Unalloyed aluminium ingots for remelting
1 Scope
This Standard specifies the requirements, test methods, inspection rules and marking,
packaging, transportation and storage and contract (or order) content of unalloyed
aluminium ingots for remelting.
This Standard applies to unalloyed aluminium ingots for remelting manufactured by
molten alumina-cryolite salts electrolysis method.
2 Normative references
The following standards contain provisions which, through reference in this Standard,
constitute provisions of this Standard. For dated reference, subsequent amendments
to (excluding corrections to), or revisions of, any of these publications do not apply.
However, the parties to agreements based on this Standard are encouraged to
investigate the possibility of applying the most recent editions of the standards. For
undated references, the latest edition of the normative document referred to applies.
GB/T 7999 Optical emission spectrometric analysis method of aluminium and
aluminium alloys
GB/T 8170 Rules of rounding off for numerical value
GB/T 20975 (all parts) Chemical analysis methods of aluminium and aluminium
alloys
YB/T 025 Metal strips for packaging
3 Requirements
3.1 Product classification
Unalloyed aluminium ingots for remelting are divided into 8 designations according to
the chemical composition. Al99.90, Al99. 85, Al99.70, Al99.60, Al99.50, Al99.00, Al99.
7E, Al99.6E.
3.2 Chemical composition
The chemical composition of unalloyed aluminium ingots for remelting shall comply
with the specifications of Table 1.
3.3 Appearance quality
3.3.1 Unalloyed aluminium ingots shall be silver and white.
3.3.2 The surface of unalloyed aluminium ingots shall be neat, no serious flash or gas
porosity, and slight inclusions are allowed.
3.4 Weight and form of ingots
3.4.1 The weight of each unalloyed aluminium ingot is 20 kg ± 2 kg or 15 kg ± 2 kg, or
determined through negotiation between the supply and demand parties.
3.4.2 The form of unalloyed aluminium ingots is not required uniformly, but it is required
that the form of unalloyed aluminium ingots shall satisfy the need for packaging,
transportation and storage.
3.5 Other requirements
When the demand party has special requirements for the quality of unalloyed
aluminium ingots, it shall be determined through negotiation between the supply and
demand parties, and indicated in the order contract.
4 Test methods
4.1 The analysis of chemical composition of unalloyed aluminium ingots for remelting
shall be carried out according to the provisions of GB/T 20975 or GB/T 7999, and the
arbitration analysis shall be carried out according to the provisions of GB/T 20975.
4.2 The appearance of unalloyed aluminium ingots for remelting shall be inspected
with naked eyes.
4.3 The weight of unalloyed aluminium ingots shall be measured by weighing.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 Unalloyed aluminium ingots for remelting shall be inspected by the demand
party’s technical (quality) supervision department to ensure that the product quality
meets the requirements of this Standard and fill in the quality certificate.
5.1.2 The demand party shall inspect the received product according to the provisions
of this Standard. If the inspection results do not comply with the provisions of this
Each batch of unalloyed aluminium ingots for remelting shall be inspected for chemical
composition, appearance quality and batch weight.
5.4 Sampling and sample preparation of chemical composition arbitration
5.4.1 Take one piece of unalloyed aluminium ingot from the upper, middle and lower
parts of the batch. When the unalloyed aluminium ingots are scattered, and the upper,
middle and lower parts cannot be known, then the random sampling shall be not less
than three.
5.4.2 Sampling by drilling method. Use a drill of 10 mm to 20 mm diameter for sampling
and use ethanol as lubricants.
5.4.3 On the large surface of the unalloyed aluminium ingot, drill 3 holes along its
diagonal, one in the center, the other two are from the angle top of about 100 mm, the
depth of each drilling is not less than 2/3 the original thickness. Before drilling the
sample, the surface oxide must be removed with a thickness of not less than 0.5 mm.
5.4.4 The drilled aluminium chips are taken as the sample for analyzing chemical
composition, after being mixed, treated with magnets and divided by quartering, with
a weight of not less than 100 g.
5.4.3 Sampling and sample preparation of arbitration of large ingots of 22 kg or above
22 kg are determined through negotiation between supply and demand parties.
5.5 Treatment of arbitration results
5.5.1 If the arbitration analysis results of chemical composition are inconsistent with
the provisions of the original designation, re-determine the designation according to
the arbitration analysis results.
5.5.2 If the appearance quality is not qualified, the product is treated as block.
5.5.3 The batch weight is calculated on the basis of the actual weight.
6 Marking, packaging, transportation, storage
6.1 Marking
6.1.1 The manufacturer’s logo, smelting number and inspection mark shall be casted
or printed on each unalloyed aluminium ingot.
6.1.2 Each bundle of unalloyed aluminium ingots shall have a distinctive-color,
waterproof, uneasy-to-fall-off mark, and not less than two marks indicating the
implemented standard, melting number, bundle number, net weight or designation. It
is recommended to use labels indicating product name, implemented standard, melting
GB/T 1196-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.10
H 61
Replacing GB/T 1196-2002, GB 12768-1991, GB/T 8644-2000
Unalloyed aluminium ingots for remelting
(ISO 115.2003, Unalloyed aluminium ingots for remelting –
Classification and composition, MOD)
ISSUED ON. JUNE 09, 2008
IMPLEMENTED ON. DECEMBER 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
3. No action is required - Full-copy of this standard will be automatically and
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Requirements... 5
4 Test methods ... 6
5 Inspection rules ... 6
6 Marking, packaging, transportation, storage ... 8
7 Order (or contract) content ... 10
Annex A (informative) Comparison of clause number of this Standard with
clause number of ISO 115. 2003 ... 11
Foreword
This Standard modified ISO 115.2003 “Unalloyed aluminium ingots for remelting -
Classification and composition” and is redrafted according to ISO 115.2003. For the
purpose of comparison, a table of comparison between the clause number of this
Standard and the clause number of the corresponding International Standard is listed
in the informative Annex A.
This Standard has modified ISO 115.2003 when adopting. These technical differences
are identified by the vertical single line in the margins of the clauses in which they
relate. The main technical differences are as follows.
- Fine unalloyed aluminium ingot designations in Table 1 and series of designations
in Table 2 of ISO 115.2003 are not used;
- ADD designations. Al99.90, Al99.85, Al99.60, Al99.50, Al99.00;
- ADD the specific requirements for steel strips for packaging;
- DELETE the normative Annex A in ISO 115.2003.
This Standard replaces GB/T 1196 -2002 “Unalloyed aluminium ingots for remelting”,
GB 12768-1991 “Electrical aluminium ingots for remelting” and GB/T 8644-2000 “Fine
aluminium ingots for remelting”.
Compared with GB/T 1196-2002, GB 12768-1991 and GB/T 8644-2000, main changes
of this Standard are as follows.
- INTEGRATE the designations of GB/T 1196 -2002 and GB 12768-1991;
- INCORPORATE the relevant fine aluminium ingot designations INTO YS/T 665-
2008;
- DELETE the designation A199.70 in GB/1696-2002 and the designation Al99.65E
in GB 12768-1991;
- ADD the designation Al99.6E, which cancels “A” in the original designation
Al99.70A and others remain the same;
- ADJUST Si and Cu in A199.7E of GB 12768-1991, and ADD three impurity
elements Mg, Zn and Mn.
- RE-SPECIFY heavy metal elements Cd, Pb, As, and ADD the requirements for
Hg;
- RE-SPECIFY B, Cr and Mn + Ti + Cr + V in Al99.7E and Al99.6E;
Unalloyed aluminium ingots for remelting
1 Scope
This Standard specifies the requirements, test methods, inspection rules and marking,
packaging, transportation and storage and contract (or order) content of unalloyed
aluminium ingots for remelting.
This Standard applies to unalloyed aluminium ingots for remelting manufactured by
molten alumina-cryolite salts electrolysis method.
2 Normative references
The following standards contain provisions which, through reference in this Standard,
constitute provisions of this Standard. For dated reference, subsequent amendments
to (excluding corrections to), or revisions of, any of these publications do not apply.
However, the parties to agreements based on this Standard are encouraged to
investigate the possibility of applying the most recent editions of the standards. For
undated references, the latest edition of the normative document referred to applies.
GB/T 7999 Optical emission spectrometric analysis method of aluminium and
aluminium alloys
GB/T 8170 Rules of rounding off for numerical value
GB/T 20975 (all parts) Chemical analysis methods of aluminium and aluminium
alloys
YB/T 025 Metal strips for packaging
3 Requirements
3.1 Product classification
Unalloyed aluminium ingots for remelting are divided into 8 designations according to
the chemical composition. Al99.90, Al99. 85, Al99.70, Al99.60, Al99.50, Al99.00, Al99.
7E, Al99.6E.
3.2 Chemical composition
The chemical composition of unalloyed aluminium ingots for remelting shall comply
with the specifications of Table 1.
3.3 Appearance quality
3.3.1 Unalloyed aluminium ingots shall be silver and white.
3.3.2 The surface of unalloyed aluminium ingots shall be neat, no serious flash or gas
porosity, and slight inclusions are allowed.
3.4 Weight and form of ingots
3.4.1 The weight of each unalloyed aluminium ingot is 20 kg ± 2 kg or 15 kg ± 2 kg, or
determined through negotiation between the supply and demand parties.
3.4.2 The form of unalloyed aluminium ingots is not required uniformly, but it is required
that the form of unalloyed aluminium ingots shall satisfy the need for packaging,
transportation and storage.
3.5 Other requirements
When the demand party has special requirements for the quality of unalloyed
aluminium ingots, it shall be determined through negotiation between the supply and
demand parties, and indicated in the order contract.
4 Test methods
4.1 The analysis of chemical composition of unalloyed aluminium ingots for remelting
shall be carried out according to the provisions of GB/T 20975 or GB/T 7999, and the
arbitration analysis shall be carried out according to t...
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