GOST 14118-85

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  ГОСТ 14118-85

GOST 14118−85 Wire from precision alloys for elastic elements. Specifications (with Amendments No. 1, 2)

GOST 14118−85
Group В73

INTERSTATE STANDARD

WIRE OF PRECISION ALLOYS FOR ELASTIC ELEMENTS

Specifications

Wire from precision alloys for elastic elements. Specifications

ISS 77.140.65
OKP 12 6600

Date of introduction 1986−07−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of metallurgy of the USSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 25.06.85 N 1884

3. The frequency of inspection — 5 years

4. REPLACE GOST 14118−69

5. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

6. Resolution of Gosstandart No. 659 dated 08.07.92 removed the limitation of the validity period

7. EDITION with Amendments No. 1, 2 approved in March 1990, July 1992 (IUS 6−90, 9−92)


This standard applies to cold rolled wire of precision alloys for elastic elements.

1. ASSORTMENT

1.1. The wire is subdivided

by state of material:

polonikova — PN;

nagarebana — N;

vysokokachestvennoj — VN;

for precision manufacturing:

qualitity h8, h9, h10, h11;

qualitity 8, 9, 10, 11;

at the standardized values for grades 36NICRTIAL and 40KKHNM:

two-way restriction temporary resistance;

without limitation of the upper limit of strength.

(Changed edition, Rev. N 2).

1.2. Wire depending on the brand of alloy is manufactured with the diameters given in table.1.

Table 1

1.3. By agreement between manufacturer and consumer wire of other diameters are manufactured according to GOST 2771.

1.4. The diameter of cold drawn wire shall conform to GOST 2771 for a range of diameters R40 extreme deviations:

to 0.30 mm incl. — qualiteam h8, h9 or 8, 9;

from 0.32 to 2.0 mm incl. — qualiteam h9, h10 or 9, 10;

for diameters 2.1 mm St — h11 qualiteam or 11.

1.5. The roundness of the wire must not exceed half of the limit deviation for diameter.

Examples of symbols

Wire of alloy grade 40KKHNM diameter 0,5 mm, class 10, polonaruwa, with a bilateral constraint rules temporary resistance:

Wire 0,5-10-PN-A-40KXHM-GOST 14118−85

The same alloy 36NICRTIAL, with a diameter of 0.3 mm, quality h9, nagarebana, without limitation, the upper limit of the norms of temporary resistance:

Wire of 0.3-h9-N-36NICRTIAL-GOST 14118−85.

(Changed edition, Rev. N 2).

2. TECHNICAL REQUIREMENTS

2.1. Wire of precision alloys must be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

2.2. The chemical composition of the alloys shall conform to GOST 10994.

2.3. Wire diameter less than 6.0 mm are made in polonikova, and vysokochastotnom cold-worked condition, with a diameter of 6.0 mm and more — in polonikeman condition.

2.4. The surface of the wire should be smooth, should not have shells, bundles, cracks, scratches and slag. Allowed risks, scratches and dents with a depth not exceeding half of the limit deviation for diameter. On demand of the consumer is the clarification of the characteristics of the wire surface according to agreed standards, indicating the type and number of defects per unit area.

(Changed edition, Rev. N 1).

2.5. Allowed Stripping defects in the wire, the depth of Stripping shall not display wire beyond the minimum cross-section.

2.6. Rupture strength of wire in polonikova, cold-worked and vysokochastotnom state must conform to the standards given in table.2.

Table 2

Notes:

1. Wire alloy 36NICRTIAL 40KKHNM brands and manufactures two-way restriction temporary resistance at the request of the consumer;

2. Rules with a «*" optional to 01.07.94.


(Changed edition, Rev. N 2)

2.7. Mechanical properties of the wire, defined on the heat-treated samples must conform to the standards given in table.3.

Table 3

Notes:

1. Rules marked with * are optional to 01.07.94.

2. The elastic limit of the wire diameter more than 3.0 mm from alloys of 40KKHNM, 36NICRTIAL, 36NKHTJU5M, 36NKHTJU8M determined by the requirement of the user. The elastic limit for a wire diameter of 3.0 mm and less defined.


(Changed edition, Rev. N 1, 2).

2.8. Wire with a diameter of 0.6 mm incl. alloy 36NICRTIAL brands, 36NKHTJU5M, 42NKHTJU, 44NKHTJU check for winding.

After winding five turns of wire on a rod with a diameter equal to four times the diameter of the wire, it should not have cracks and delamination.

2.9. Customer’s request wire produced:

with the definition of normal elasticity modulus and temperature coefficient of the modulus of elasticity;

definition of contamination of the alloys with non-metallic inclusions on the billet diameter not less than 6.0 mm;

with a test of inflection;

with high demands on surface quality;

alloy 40KKHNM with a diameter of 0.5 mm with limit deviation for diameter minus 0.02 mm, with a temporary tear resistance of not less than 1960 N/mm(200 kg/mm) in the delivery state;

with a check for winding wire with a diameter of 0.6 mm and less from grades 40KKHNM and 40KNKHMVTJU.

Standards for wire (except temporary rules of the resistance wire alloy 40KKHNM 0.5 mm in diameter) determined by agreement between manufacturer and consumer.

(Changed edition, Rev. N 2).

2.10. Physical and mechanical properties of the alloys, the recommended modes of cold working and ageing conditions are given in the Annex to GOST 14117.

3. ACCEPTANCE RULES

3.1. Wire take parties. The party must consist of one wire bottoms, same size, same condition of material and decorated by one document on quality.

3.2. To check the quality of wire taken from the party:

to control the size and surface quality — 100% skeins (coils, bars);

for the determination of chemical composition the manufacturer is 1 the sample from the melt;

to determine the mechanical properties, testing for inflection and winding two winding (mandrel, coil);

to determine the contamination of metal non-metallic inclusions — two coils of wire with a diameter of 6.0 mm or more.

3.3. The chemical composition of the alloys is certified by a document of quality of the enterprise, smelting metal.

3.4. Re-testing — GOST 7566.

4. TEST METHODS

4.1. Wire diameter is measured in two mutually perpendicular directions of the same section, not less than in three places with a micrometer according to GOST 6507, GOST 11358 or other measuring tools that provide required accuracy.

4.2. Chemical composition of alloys determined according to GOST 12344−12361 GOST, GOST 28473 or other methods providing the required accuracy of the analysis. Sampling — according to GOST 7565.

4.1, 4.2. (Changed edition, Rev. N 2).

4.3. The surface quality is checked visually and, if necessary, by comparison with an agreed sample.

If there is disagreement in assessing the quality of the surface is inspected at magnification 8. If necessary, the depth of the defect is cleaned with sandpaper or a file with further comparative dimension to the stripped and unstripped areas. If you cannot determine the depth of the defect Stripping determination of the depth and nature of the defect can be carried out by metallographic methods.

Allowed the surface quality of wire on the coils to test on the outer layer of wire wound on a spool.

(Changed edition, Rev. N 1).

4.4. Mechanical and elastic properties determined according to GOST 10446 on two samples from the roll (coil mandrels) with an estimated length of 100 mm.

4.5. The test winding is carried out according to GOST 10447 on two samples.

4.6. Methods of determining the elastic properties determined by agreement between manufacturer and consumer.

4.7. Control on the contamination of alloys with non-metallic inclusions is carried out on six samples according to GOST 1778 by the method of SH1 or Ш4.

4.8. Test bend is carried out according to GOST 1579 on two samples.

5. PACKING, MARKING, TRANSPORTATION AND STORAGE

5.1. Packing, marking, transportation and storage — by GOST 7566.

5.2. Wire with diameter more than 0.45 mm transporterowych in reels. Wire diameter of 0.45 mm and less coils or bars.

By agreement between manufacturer and user nagaremono and vysokolegirovannye wire diameter of 0.45 mm and less transporterowych in reels.

The wire should be wound on the spool (mandrel) separatornyi rows, providing free spooling.

Each coil (coil mandrel) consists of a single segment wire. Allowed winding on a spool (mandrel) no more than three pieces of wire. Sections of wire shall be separated by spacers, thus preventing wire entanglement.

(Changed edition, Rev. N 2).

5.3. To protect the wire from corrosion is allowed to apply the oiling of industrial oils 45, 20,-20A and 40A according to GOST 20799.

5.4. Hanks, reels and mandrels must be wrapped in single or multiple layers of paper churchyard 8828, 10396 GOST, GOST 9569 or other regulatory-technical documentation and dense rows stacked in boxes, made according to GOST 2991 (boxes type I or type II) or according to normative-technical documentation.

Allowed coils of wire with a diameter of 2.0 mm and more packaging in single or multiple layers of paper according to GOST 9569, GOST 8828, GOST 10396, then, in the film according to GOST 10354, GOST 16272 holstoproshivny or tare the fabric according to GOST of 14,253, non-woven cloth, stitched the flap of waste textile industry or other types of packaging materials according to normative-technical documentation, with the exception of cotton and linen fabrics. Packed skeins must be tied with wire according to GOST 3282 or other normative and technical documentation or some other way to protect the packs from unwinding.

The outer diameter of a coil should be no more than 1200 mm, internal — not less than 180 mm.

5.5. Transport marking under GOST 14192.

5.6. Wire transporterowych all types of transport in covered vehicles in accordance with the rules of transportation of cargoes effective for this transport.

Allowed transportation on open rolling stock.

When you ship two or more packages to one user should be consolidation packages in accordance with the requirements of GOST 21650, GOST 24597.

(Changed edition, Rev. N 2).

5.7. Weight of cargo space with mechanized loading and unloading in open vehicles shall not exceed 5 tonnes in indoor — 1250 kg With manual loading and unloading weight of the package (package) must not exceed 80 kg.

5.8. Wire should be stored in a dry place at temperature from + 5 to + 40 °C at a relative humidity of 80% and the absence of air in alkaline, acidic and other aggressive contaminants.

6. MANUFACTURER’S WARRANTY

6.1. The manufacturer guarantees the quality of wire requirements of this standard under the conditions of transportation and storage.

6.2. Guaranteed storage life of wire for 15 years from the date of manufacture.

The text of the document is verified by:
the official publication of the
Wire metal. Part 2: Sat. Standards. -
M.: IPK Publishing house of standards, 2003