GOST 20967-75

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  ГОСТ 20967-75

GOST 20967−75 wire rods, aluminum alloy. Specifications (with Amendments No. 1, 2, 3)

GOST 20967−75

Group В74

STATE STANDARD OF THE USSR

WIRE RODS, ALUMINUM ALLOY

Specifications

Aluminium alloy rolled wire. Specifications*

OFC 1213 17**

___________________
* The name of the standard. Changed the wording, Rev. N 1.
** Added, Rev. N 1. Changed the wording, Rev. N 2.

Valid from 01.01.76
to 01.01.81*
_______________________________
* Expiration removed
Protocol 5−94 N Interstate Council
for standardization, Metrology and certification
(IUS N 11/12, 1994). — Note the manufacturer’s database.

DEVELOPED by all-Union research and design Institute of the aluminum, magnesium and electrode industry (VAMI)

Zam. Director-Kostyukov A. A.

Supervisor Lieberman M. D.

Responsible Zobnina N. With.

INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

Zam. Minister Vladimir Ustinov

The draft all-Union scientific research Institute of standardization (VNIIS)

Director Gliches A. V.

APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR of July 7, 1975 N 1706

MADE: the Change in N 1, approved and put into effect with 01.01.81, in terms of clause 4.3 01.01.82 by the Resolution of Gosstandart of the USSR from 22.07.80 3751 N, Change N 2, approved and introduced with effect from 01.01.86 by the Resolution of Gosstandart of the USSR from 17.07.85 N 2264, Change No. 3, approved and put into effect from 01.01.91 by the Resolution of Gosstandart of the USSR from 26.03.90 N 556

Change N 1, 2, 3 are made by the manufacturer of the database in the text ICS N 10, 1980, ICS # 10, 1985, IMS N 6, 1990

This standard applies to wire rod from aluminum alloy produced by continuous casting and rolling designed for the manufacture of wire for electrical purposes.

(Changed edition, Rev. N 2, 3).

1. AND SIZES

1.1. Wire rod manufactured in two grades: CAS-1 and CAS-2.

1.2. The diameters of wire rod, limit deviations according to him, and ovality shall be as specified in table.1.

Table 1

mm

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* Refer to the average diameter, as determined in accordance with clause 4.1.


OKP codes are given in Appendix 1.

Example of designation of wire rod brand CAS-1 with a diameter of 9 mm:

Rod CAS-1−9 — GOST 20967−75

(Changed edition, Rev. N 3).

2. TECHNICAL REQUIREMENTS

2.1. Wire rod manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

Wire rods manufactured from alloy grade ABE.

Chemical composition of wire rod shall be those specified in table.2.

Table 2

(Changed edition, Rev. N 2).

2.2. Rod throughout the length must have a clean, flat, smooth surface free of cracks, laps, burrs, captivity, holes, nicks and foreign matter.

Slight surface flaws (risks, scratches, etc.), if the depth at the control sweep does not exceed the deviation stated in the tables.1.

(Changed edition, Rev. N 3).

2.3. Mechanical properties of wire rod shall be as specified in table.3.

Table 3

(Changed edition, Rev. N 3).

2.4. Specific electrical DC resistance of wire rod to 01.01.93 is not standardized, the definition of it necessarily for statistical purposes.

Specific electrical resistance of the DC annealed at a temperature of (350±20) °C wire out of wire rod at 20 °C shall be more 0,0295 Ohm·mm/m.

(Changed edition, Rev. N 2, 3).

2.5. Rod must withstand the technological test of drawing, not allowing more than two breaks per tonne of wire rod, the defects of a metallurgical nature (sunsets, films, sinks, foreign inclusions).

(Changed edition, Rev. N 3).

2.6. Wire rods must be reeled in Bay one a piece weighing from 800 to 1500 kg. can be manufactured in small bays of wire rod weighing not less than 500 kg not more than 5% by weight of the party.

2.7. Wire rods must be wound in coils without entanglement, perekrashivaniya and sticking of the coils, impeding the free unwinding at drawing.

The winding density to ensure the integrity of the bays on the operations of transportation and packing.

2.6, 2.7. (Added, Rev. N 2. Changed the wording, Rev. N 3).

3. ACCEPTANCE RULES

3.1. Wire rod, take parties. The party should consist of wire rod, one brand, one or more heats of the same diameter and be furnished by a single document about quality that contains:

trademark or the name and trademark of manufacturer;

brand rod;

the diameter of the rod;

rooms heats;

mechanical properties;

electrical resistivity;

the weight of the batch;

batch number;

the number of bays in the party;

the designation of this standard.

The weight of the batch should be no more than 70 tons.

(Changed edition, Rev. N 2, 3).

3.2. Check the diameter, ovality, chemical composition, mechanical properties, electrical resistivity of wire rod subjected to a 2% coves, but not less than one Bay from the party.

3.3. Quality check of the surface mass Bay and the winding quality is subjected to each Bay.

3.2, 3.3. (Changed edition, Rev. N 3).

3.4. Technological testing drawing the consumer spends 5% of the bays, but no less than two coils from the party.

3.5. Check the electrical resistivity of the wire conducts consumer 2% coves, but not less than one Bay from the party.

3.6. Check for sticking of the coils holds the consumer at every Bay.

3.7. If unsatisfactory test results of at least one of the indicators, it conducted a re-test of the doubled sample taken from the same batch.

The results of repeated tests apply to the entire party.

3.4−3.7. (Added, Rev. N 3).

4. TEST METHODS

4.1. Check diameter and ovality of wire rod, surface quality, mechanical properties, quality of winding, the technological sample drawing should be carried out in accordance with test methods aluminum wire rod according to GOST 13843−78.

(Changed edition, Rev. N 2, 3).

4.2. Determination of the chemical composition of wire rod is carried out according to GOST 25086−87, GOST 11739.11−82*, GOST 12697.1−77, GOST 12697.3−77-GOST 12697.10−77, GOST 7727−81 or other methods of equal accuracy standard.
________________
* On the territory of the Russian Federation GOST 11739.11−98. Here and further. — Note the manufacturer’s database.

If there is disagreement in the assessment of the chemical composition analysis is carried out according to GOST 25086−87, GOST 11739.11−82, GOST 12697.1−77, GOST 12697.3−77-GOST 12697.10−77, GOST 7727−81.

(Changed edition, Rev. N 3).

4.3. (Deleted, Rev. N 2).

4.4, 4.5. (Deleted, Rev. N 1).

4.6. Electrical resistivity of wire rod and wire test according to GOST 7229−76 on samples with an estimated length of 1 m, taken at a distance of not less than 1 m from either the start or end of the Bay.

The cross-sectional area of the samples is determined by calculating the weight, taking the density of aluminum alloy is equal to 2,700 g/cm.

(Added, Rev. N 3).

5. PACKING, MARKING, TRANSPORTATION AND STORAGE

5.1. Each coil of wire rod must be Packed in accordance with the requirements of GOST 13843−78.

5.2. Transport marking — according to GOST 14192−77*. Each coil of wire rod should have a distinctive marking stripe red, applied with indelible paint on the end of the spool in the radial direction across the thickness of the Bay. Each Bay shall be fitted with a label in accordance with the requirements of GOST 13843−78.
________________
* On the territory of the Russian Federation GOST 14192−96. — Note the manufacturer’s database.

5.1, 5.2. (Changed edition, Rev. N 2, 3).

5.3. Transportation and storage — by GOST 13843−78.

(Changed edition, Rev. N 1, 3).

ANNEX 1 (reference)

ANNEX 1
Reference

APPENDIX 1. (Added, Rev. N 3).

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: Publishing house of standards, 1975