GOST R 53777-2010

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  ГОСТ Р 53777-2010

Grade R 53777−2010 Aluminum alloys. Technical conditions (with Change No. 1)

GOST R 53777−2010
Group B51

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

ALUMINUM ALUMINUM LEGATURES

Technical specifications

Master alloys of aluminum. Specifications

GCS 77.120
OKP 17 1224

Date of introduction 2010−07−01

Foreword

The goals and principles of standardization in the Russian Federation are established by Federal Law No. 184-FZ of December 27, 2002 «On Technical Regulation», and the rules for the application of national standards of the Russian Federation — GOST P 1.0−2004 «Standardization in the Russian Federation.

About the standard

1 DEVELOPED by the Technical Committee for Standardization TK 297 «Materials and Semi-finished Products from Light and Special Alloys» (OJSC «All-Russian Institute of Light Alloys») and LLC «Intermix Met»

2 was introduced by the Technical Committee for Standardization of TC 297 «Materials and semi-finished products from light and special alloys»

3 APPROVED AND ENABLED The Order of the Federal Agency for Technical Regulation and Metrology of March 25, 2010 N 34-st

4 INTRODUCED FOR THE FIRST TIME

Information on changes to this standard is published in the annually published information index «National Standards», and the text of the amendments and amendments is published in the monthly information indexes «National Standards». In case of revision (replacement) or cancellation of this standard, the relevant notice will be published in the monthly published information index «National Standards». The relevant information, notification and texts are also posted in the public information system — on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

APPENDIX Change No. 1, approved and enacted by Order of Rosstandart of 30.11.2011 N 660-st from 01.09.2012

Change N 1 was made by the manufacturer of the database on the text of IMS No. 2, 2012

1 area of use

This standard applies to aluminum ligatures (hereinafter referred to as ligatures) obtained by melting and used in the metallurgical and foundry industry.

Ligatures are intended for alloying and modifying in the production of deformable and cast aluminum alloys.

2 Normative references

Normative references to the following standards are used in this standard:

GOST 12.1.005−88 Occupational safety standards system. General sanitary and hygienic requirements for the air of the working area

GOST 12.1.007−76 Occupational safety standards system. Harmful substances. Classification and general safety requirements

GOST 7727−81 Aluminum alloys. Methods of spectral analysis

Cast aluminum alloys and deformable alloys. Methods for determination of boron

Cast aluminum alloys and deformable alloys. Methods for the determination of beryllium

Cast aluminum alloys and deformable alloys. Methods for determination of bismuth

Cast aluminum alloys and deformable alloys. Methods for determination of vanadium

GOST 11739.6−99 Aluminum casting alloys and wrought. Methods for the determination of iron

Cast aluminum alloys and deformable alloys. Methods for determination of silicon

Cast aluminum alloys and deformable alloys. Methods for determination of cadmium

Cast aluminum alloys and deformable alloys. Methods for the determination of magnesium

Cast aluminum alloys and deformable alloys. Methods for the determination of manganese

Cast aluminum alloys and deformable alloys. Methods for determination of copper

Cast aluminum alloys and deformable alloys. Methods for determination of sodium

Cast aluminum alloys and deformable alloys. Methods for the determination of nickel

Cast aluminum alloys and deformable alloys. Methods for determination of tin

Cast aluminum alloys and deformable alloys. Methods for determination of lead

Cast aluminum alloys and deformable alloys. Methods for the determination of antimony

Cast aluminum alloys and deformable alloys. Method for determination of titanium

Cast aluminum alloys and deformable alloys. Methods for the determination of chromium

Cast aluminum alloys and deformable alloys. GOST 11739.23−99. Methods for the determination of zirconium

Cast aluminum alloys and deformable alloys. Methods for determining zinc

GOST 11739.25−90 Aluminum foundry alloys and deformable. Methods for determining scandium

GOST 19433−88 Cargo is dangerous. Classification and marking

GOST 24231−80 Non-ferrous metals and alloys. General requirements for the selection and preparation of samples for chemical analysis

GOST 31340−2007 warning labeling of chemical products. General requirements

NOTE — When using this standard, it is advisable to check the operation of reference standards in the public information system — on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the annually published informational index «National Standards», which was published as of January 1 of the current year, and on the corresponding monthly published information signs published this year. If the reference standard is replaced (modified), then when using this standard should be guided by a replacement (modified) standard. If the reference standard is canceled without replacement, then the provision referring to it is applied in the part not affecting this reference.

3 Technical requirements

3.1 Manufacture, control and acceptance of ligatures at the manufacturer shall be carried out according to technical documents approved by the manufacturer in accordance with the requirements of this standard.

3.2 The grades and chemical composition of the ligatures shall be as specified in Table 1. The color markings of the ligatures are given in Appendix A.

3.3. The mass fraction of the elements, indicated in Table 1, is the maximum, if no limits are specified.


Table 1

In percentages

(Changed edition, Rev. N 1).

3.4. The ligatures are made in the form of wafer plates weighing not more than 10 kg or as a rod with a diameter (9.5 ± 0.5) mm wound in a coil weighing not more than 180 kg. Ligature AISc is made in the form of plates cast into a mold, followed by pruning the gate. The brand name AIMn60 is supplied in the form of flakes of 1−10 mm in size. Some ligatures, due to their metallurgical characteristics and composition, are released in the form of pieces of irregular shape or broken wafer plates.

3.5. The dimensions of the wafer plates are subject to agreement between the manufacturer and the customer of the ligatures. Recommended size of waffle plates: 440x220x50, 500x200x50 or 300x200x50 mm.

3.6 The surface of the wafer plates should be clean. On the surface are not allowed slag and other foreign inclusions visible to the naked eye. On the surface, traces of oxide coatings, traces of cutting or defacing defects are allowed.

3.7 The presence on the surface of rods and macrosections of slag and other foreign inclusions visible to the naked eye is not allowed.

3.8 Melting must be identified by the appropriate number. The shape of the samples and the conditions for their selection for chemical and spectral analyzes are determined by technological instructions of the manufacturer. Each sample must be taken from the molten metal from the furnace, the liquid stream, the cast plate or rod after the processing has been completed.

4 Acceptance rules

4.1 Ligatures are accepted in batches of mass not exceeding 1000 kg. A party must consist of products of one brand, one size, one or several swimming trunks and be issued with one quality document containing:

— the trademark or the name of the manufacturer and the trademark;

— name of the consumer;

— product brand, product type, color marking according to Appendix A;

— lot number, melting numbers;

— number of packages, their masses are net and gross;

— results of chemical analysis of each melting in the volume of the requirements of Table 1;

— the designation of this standard.

The quality document must have a stamp of the manufacturer and the signature of the head of the quality service.

4.2 At the manufacturing plant, the control of the ligatures is carried out in the following volume:

— Requirements for the quality of the surface for defects — 100%;

— lot weight — 100%;

— Marking — 100%;

— Packaging quality — 100%;

— the chemical composition of the ligature — each melting.

4.3 When obtaining unsatisfactory results of chemical and spectral analyzes, at least one of the indices for it is repeated analysis on a doubled number of samples taken from the same lot. The results of the repeated analysis are distributed to the whole lot.

4.4 Customer enterprise, the reliability of the chemical analysis of the ligatures carried out by the manufacturer determines on the selected samples — two percent of the plates, bays from the lot, but not less than on one plate, the bay of each melting.

5 Test methods

5.1 Selection, preparation of samples and storage of spare samples for determining the chemical composition of ligatures — in accordance with GOST 24231. It is allowed to select the chips for chemical analysis by the method of milling the end face of a tempertlet cut at a distance of one-fourth the length of the wafer plate.

5.2 For the determination of the chemical composition of the master alloy, manufactured in the form of a rod with a diameter of 9.5 mm, wound up in a bay, samples up to 300 mm from the bay shall be taken. Of these samples, a chip is selected on a lathe, then — in accordance with GOST 24231 .

5.3 The chemical composition of the ligatures is determined in accordance with GOST 7727, GOST 11739.2 — GOST 11739.7, GOST 11739.9, GOST 11739.11 — GOST 11739.13, GOST 11739.15 — GOST 11739.21, GOST 11739.23 — GOST 11739.25, and also according to the methods of manufacturing enterprises agreed with the consumer.

5.4. The quality of the product surface is checked by inspection without the use of magnifying devices, the mass is determined by weighing on mechanical or electronic scales that provide the necessary weighing accuracy.

5.5 For the chemical analysis of the master alloy in the form of plates, samples 20 mm thick are selected in cross section from opposite ends of the fragment.

6 Marking, packaging, transportation and storage

6.1. For each plate and bay of ligatures from two opposite ends, indelible paint shall be marked with a strip or strip of width from 10 to 15 mm each in accordance with annex A.

6.2 Each ligature plate must be marked with an indelible paint indicating the melting number. Metal marking is allowed. The height of the digits is not less than 15 mm.

6.3 The marking of the ligatures shall be marked on a label affixed to the package of the unit or bay and contain the following information:

— the trademark or the name of the manufacturer and the trademark;

— name and brand of products, product type, color marking;

— batch number;

— gross and net masses;

— results of chemical analysis of each melting within the scope of the requirements of Table 1.

6.4 Ligatures plates are delivered in batches packed in blocks on wooden pallets. Bays of ligatures in the form of a rod are supplied packed in 2−3 bays on wooden pallets. The bay is wound up with one bundle (piece) of the rod. Blocks of plates or coils of ligatures are fastened with tape to wooden pallets and packed in polyethylene film to protect against moisture ingress.

6.5 Packing plates or coils should ensure their safety during transportation and should not be destroyed during loading, reloading and storage.

6.6 Flake ligature of the brand AlMn60 is supplied in big bags with a weight of 500 or 1000 kg, attaching a label with the marking according to 6.3.

6.7 Ligatures are transported by all modes of transport in covered vehicles.

6.8 Ligatures should be stored in covered, dry rooms in conditions that prevent moisture and active chemicals from entering it.

6.9 When marking ligatures, the requirements of GOST 31340 (regarding the warning of special risks) should be taken into account.

7 Safety and environmental requirements

7.1 In the manufacture of aluminum-beryllium master alloys, the safety requirements are determined by the presence of beryllium, which, according to the degree of exposure to the body, is classified as the first hazard class in accordance with GOST 12.1.007. Air in the working area must comply with the sanitary and hygienic requirements of GOST 12.1.005 .

7.2 In the manufacture of the remaining grades of ligatures according to Table 1, the safety requirements are determined by aerosols of aluminum of predominantly fibrogenic action, which, according to the degree of exposure to the body, are classified as the third hazard according to GOST 12.1.007. Air in the working area must comply with the sanitary and hygienic requirements of GOST 12.1.005 .

7.3 According to the conditions of transportation and storage of alloys all grades are referred to the 9th hazard class of category 923 according to GOST 19433 .

8 Manufacturer’s warranty

8.1 The manufacturer confirms compliance of the ligatures with the requirements of this standard, subject to the conditions of transportation and storage.

8.2 Guarantee shelf life of ligatures — 10 years from the date of manufacture.

Appendix A (compulsory). Ligature color marking

Appendix A
(required)

Table A.1