Classification of steel wire according to GOST 2246. Marking, packaging, transportation and storage

1 mm 1.2 mm 1.4 mm 1.6 mm 2 mm 3 mm 4 mm 5 mm
Markings:
SV-08G2S SV-08G2S-O SV-10GSMT SV-10GSMT-O SV-10NMA

GOST 2246-70 applies to cold-drawn welding wire made of low-carbon, alloy and high-alloy steel, light and copper-plated, which is used for semi-automatic and automatic welding.

Peculiarities

Welding wire is required when gas welding in protective gas. Also used in the manufacture of electrodes. It is divided into copper-plated and light non-copper-plated.

Welding wire is primarily divided according to its intended purpose. She can serve consumable electrode for semi-automatic and automatic electric arc welding. Or serves additive, if welding is performed with a non-consumable electrode.

GOST 2246-70 defines the assortment and technical requirements for the production of welding wire. Examples of deciphering product symbols are given. There are many brands allowed by GOST. When welding, you should use welding wire that has the same composition as the metals being welded. In our company you can purchase products of different diameters of the brands Sv08G2S, GOST 2246-70, Sv08GA, Sv08A and others, light and copper-plated, used for various purposes.

1.1. The wire must be made of the following grades:

low-carbon - Sv-08, Sv-08A, Sv-08AA, Sv-08GA, Sv-08GA, Sv-10GA;

alloyed - Sv-08GS, Sv-12GS, Sv-08G2S, Sv-10GN, Sv-08GSMT, Sv-15GSTYUTSA (EP-439), Sv-20GSTYUA, Sv-18KhGS, Sv-10NMA, Sv-08MH, Sv-08KhM , St. -08ХН2М, Sv-10ХН2ГМТ (ЭИ-984), Sv-08ХН2ГМТА (EP-111), Sv-08ХН2ГМУ, Sv-08ХН2Г2СМУ, Sv-06Н3, Sv-10Х5М; high-alloy - Sv-12Х11НМФ, Sv-10Х11НВМФ, Sv-12Х13, SV-20Х13, Sv-06Х14, Sv-08Х14GNT, Sv-10Х17Т, Sv-13Х25Т, Sv-01Х19Н9, Sv-04Х19Н9, Sv-08Х16Н8М2 (EP-377) , Sv-08Х18Н8Г2Б (EP-307), Sv-07Х18Н9ТУ, Sv-06Х19Н9Т, Sv-04Х19Н9С2, Sv-08Х19Н9Ф2С2, Sv-05Х19Н9Ф3С2, Sv-07Х19Н10Б, Sv-08Х19Н10Г2Б (EI-898), Sv-06 Х19Н10М3Т, Sv-08Х19Н10М3Б (EI-902) Sv-07Х25Н13, Sv-08Х25Н13БТУ (EP-389), Sv-13Х25Н18, Sv-08Х20Н9Г7Т, Sv-08Х21Н10Г6, Sv-30Х25Н16Г7, Sv-10Х16Н25AM6, Sv-09Х16Н25М6AF (EI-981А), Sv-01 Х23Н28М3Д3Т (EP-516) , Sv-30Х15Н35В3Б3Т, Sv-08Н50 and Sv-06Х15Н60М15 (EP-367).

1.2. According to purpose, the wire is divided into:

for welding (surfacing);

for the manufacture of electrodes ( symbol- E).

The purpose of the wire must be specified in the order.

1.3. Based on the type of surface, low-carbon and alloy wire is divided into:

non-copper-plated;

copper-plated - (O).

Special requirements for copper plating of the wire surface (including the total copper content) are established technical specifications, approved in accordance with the established procedure.

The need to supply wire with a copper-plated surface is specified in the order.

(Changed edition, amendment No. 2).

1.4. At the consumer's request, the wire must be made from steel smelted by electroslag (SH) or vacuum-arc (VA) remelting or in vacuum induction furnaces (VI). Wherein Additional requirements to metal wire (tightening standards for the content of harmful and foreign impurities, introducing restrictions on the content of gases, non-metallic inclusions, etc.) are established by agreement of the parties.

2. ASSORTMENT

2.1. The wire diameters and maximum deviations along them must correspond to those specified in table 1.

Nominal wire diameter

Maximum deviation for wire intended

for welding (surfacing)

for the manufacture of electrodes

(Changed edition, Rev., No. 2).

2.2. For high-alloy wire subjected to pickling, maximum deviations in diameter are allowed 50% more than specified in table 1.

2.3. The ovality of the wire should not exceed half maximum deviation by diameter.

Examples of symbols:

Welding wire with a diameter of 3 mm, grade Sv-08A, intended for welding (surfacing), with a non-copper-plated surface:

Wire 3 Sv-08A GOST 2246-70

Welding wire with a diameter of 4 mm, grade Sv-04Х19Н9, intended for the manufacture of electrodes:

Wire 4 Sv-04K19N9 - E GOST 2246-70

Welding wire with a diameter of 2 mm, grade Sv-ZOKH25N16G7, intended for welding (surfacing), from steel made by electroslag remelting:

Wire 2 Sv-30Х25Н16Г7-Ш GOST 2246-70.

Welding wire with a diameter of 1.6 mm, grade Sv-08G2S, intended for welding (surfacing), with a copper-plated surface:

Wire 1.6, Sv-08G2S - O GOST 2246-70

Welding wire with a diameter of 2.5 mm, brand Sv-08KhGSMFA, intended for the manufacture of electrodes from steel smelted in a vacuum induction furnace, with a copper-plated surface:

Wire 2.5Sv-08HGSMFLA-VI-E-O GOST 2246-70

3. TECHNICAL REQUIREMENTS

3.1. The wire is made of steel, the chemical composition of which is given in table 2.

Wire grade

Chemical composition, %

Carbon

Silicon

Manganese

Chromium

Nickel

Molybdenum

Titanium

Sera, no more

Phosphorus - no more

Other items

Low carbon wire

No more than 0.10

No more than 0.03

No more than 0.15

No more than 0.30

Aluminum, no more than 0.01

No more than 0.10

No more than 0.03

No more than 0.12

No more than 0.25

Aluminum, no more than 0.001

No more than 0.10

No more than 0.03

No more than 0.10

No more than 0.25

Aluminum, no more than 0.01

No more than 0.10

No more than 0.06

No more than 0.10

No more than 0.25

No more than 0.12

No more than 0.06

No more than 0.20

No more than 0.30

No more than 0.12

No more than 0.06

No more than 0.20

No more than 0.30

Alloy wire

No more than 0.10

No more than 0.20

No more than 0.25

No more than 0.14

No more than 0.20

No more than 0.30

No more than 0.20

No more than 0.25

No more than 0.12

No more than 0.20

No more than 0.30

No more than 0.30

St.-15GSTYUTSA

No more than 0.30

No more than 0.40

Aluminum 0.20-0.50; zirconium 0.05-0.15; cerium, not less than 0.04

Sv-20GSTUA

No more than 0.30

No more than 0.40

Aluminum 0.20-0.50; cerium 0.30-0.45

No more than 0.30

No more than 0.20

No more than 0.30

No more than 0.30

No more than 0.30

No more than 0.10

No more than 0.30

Vanadium 0.15-0.30

No more than 0.35

No more than 0.30

Vanadium 0.20-0.35

No more than 0.25

Sv-08HGSMA

No more than 0.30

Sv-10ХГ2СМА

No more than 0.30

Sv-08KhGSMFA

No more than 0.30

Vanadium 0.20-0.35

No more than 0.06

No more than 0.25

Sv-13Х2МФТ

No more than 0.35

No more than 0.30

Vanadium 0.20-0.35

Sv-08H3G2SM

No more than 0.10

No more than 0.30

Sv-08ХМNFBA

Vanadium 0.20-0.35; niobium 0.10-0.23

No more than 0.10

Sv-10HN2GMT

Sv-08HN2GMTA

Sv-08HN2GMYU

Aluminum 0.06-0.18

Sv-08ХН2Г2СМУ

Aluminum 0.06-0.18

No more than 0.08

No more than 0.30

No more than 0.30

No more than 0.12

No more than 0.30

High alloywire

SV-12Х11НМФ

Vanadium 0.25-0.50

Sv- 10Х11НВМФ

Vanadium 0.25-0.50; tungsten 1.00-1.40

No more than - 0.60

No more than 0.60

No more than 0.60

No more than 0.08

No more than - 0.60

SV-08Х14GNT

No more than 0.10

No more than 0.12

No more than 0.80

No more than 0.70

No more than 0.60

No more than 0.15

No more than 1.00

No more than 0.80

No more than 0.60

No more than 0.03

No more than 0.06

Sv-08Х16Н8М2

No more than 0.60

Sv-08Х18Н8Г2Б

Niobium 1.20-1.50

Sv-07Х18Н9ТУ

No more than 0.09

No more than 0.80

No more than 2.00

Aluminum 0.60-0.95

Sv-06Х19Н9Т

No more than 0.08

Sv-04Х19Н9С2

No more than 0.06

Sv-08Х19Н9Ф2С2

No more than 0.10

Vanadium 1.80-2.40

Sv-05Х19Н9Ф3С2

No more than 0.07

Vanadium 2.20-2.70

SV-07Х19Н10Б

No more than 0.70

Niobium 1.20-1.50

SV-08Х19Н10Г2Б

Niobium 0.90-1.30

SV-06Х19Н10МЗТ

No more than 0.08

Sv-08Х19Н10М3Б

No more than 0.10

No more than 0.60

Niobium 0.90-1.30

Sv-04Х19Н11МЗ

No more than 0.06

No more than 0.60

Sv-05Х20Н9ФБС

No more than 0.07

Niobium 1.00-1.40; vanadium 0.90-1.30

Sv-06Х20Н11М3TB

No more than 0.08

No more than 0.80

Niobium 0.60-0.90

No more than 0.12

No more than 0.80

Sv-07Х25Н12Г2Т

No more than 0.09

Sv-06Х25Н12ТУ

No more than 0.08

No more than 0.80

Aluminum 0.40-0.80

No more than 0.09

Sv-08Х25Н13БТУ

No more than 0.10

No more than 0.55

Niobium 0.70-1.10; aluminum 0.40-0.90

No more than 0.15

No more than 0.50

Sv-08Х20Н9Г7Т

No more than 0.10

Sv-08Х21Н10Г6

No more than 0.10

Sv-3ОХ25Н16Г7

No more than 0.30

Sv-10X16N25AM6

No more than 0.60

Nitrogen 0.10-0.20

Sv-09Х16Н25М6AF

No more than 0.40

Vanadium 0.70-1.00; nitrogen 0.10-0.20

Sv-01Х23Н28М3Д3Т

No more than 0.03

No more than 0.55

No more than 0.55

Copper 2.50-3.50

Sv-30Х15Н35В3Б3Т

No more than 0.60

Tungsten 2.50-3.50; niobium 2.80-3.50

No more than 0.10

No more than 0.50

No more than 0.50

No more than 0.30

Sv-06Х15Н60М15

No more than 0.08

No more than 0.50

Iron, no more than 4.0

Notes:

1. Symbols for wire grades consist of the index St (welding) and the numbers and letters following it.

2. The numbers following the C index indicate the average carbon content in hundredths of a percent.

3. The chemical elements contained in the metal of the wires are designated by the following letters:

A - nitrogen (only in high-alloy wires); B - niobium; B - tungsten; G - manganese; D - copper; M - molybdenum; N - nickel; C - silicon; T - titanium; F - vanadium; X - chrome; C - zirconium; Yu - aluminum.

4. The numbers following the letter designations of chemical elements indicate the average content of the element as a percentage. There are no numbers after the letter designation of elements contained in small quantities.

5. The letter A at the end of the symbols for grades of low-carbon and alloyed wire indicates increased purity of the metal in terms of sulfur and phosphorus content. In Sv-08AA wire, the double letter A indicates a lower content of sulfur and phosphorus compared to Sv-08A wire.

(Changed edition, Amendment No. 2).

(Amendment, IUS 6-2003)

3.2. At the request of the consumer, the carbon content in Sv-08GSMT wire should be 0.08-0.14%, in this case the wire is designated Sv-10GSMT.

By agreement of the parties, it is possible to supply wire of the Sv-08MH, Sv-08KhM and Sv-08KhMFA brands with a carbon content of 0.08-0.13%; in this case, the wire is designated Sv-10MH, Sv-10KhM and Sv-10KhMFA, respectively.

(Changed edition, Amendment No. 2).

3.3. Allowed increase in carbon content:

up to 0.15% - in wire grade Sv-12X13;

up to 0.10% - in wire brand Sv-07Х19Н10Б.

With the consent of the consumer, a mass fraction of manganese of 1.65-2.10% is allowed in Sv-08G2S wire with a diameter of up to 1.4 mm inclusive.

(Changed edition, Revised: No. 3).

3.4. In Sv-07Х25Н13 grade wire intended for welding (surfacing), the chromium content must be at least 23.5%.

By agreement of the parties, in Sv-08Kh21N10G6 wire, the ratio of chromium content to nickel content must be at least 2.

3.5. Subject to compliance with the other requirements of this standard, it is allowed to supply wire with a deviation in the content of one of the chemical elements from the standards given in table 2. Permissible deviations must correspond to those specified in table 3.

Note. With the consent of the consumer, subject to compliance with the permissible deviations specified in table 3. It is permitted to supply wire with deviations in the content of several chemical elements from the standards given in table 2.

Name of chemical element

Actual element content in wire, %

Permissible deviation, %

From 0.08 to 0.12

Manganese

From 0.60 to 1.20

From 0.35 to 0.85

From 0.30 to 0.90

From 0.30 to 0.90

St. 0.90 to 1.80

St. 1.80 to 7.00

From 0.30 to 1.20

St. 1.20 to 2.50

St. 2.50 to 7.00

From 0.20 to 0.80

From 0.30 to 1.50

Tungsten

From 1.00 to 2.50

Molybdenum

From 0.30 to 1.00

St. 1.00 to 3.00

Aluminum

From 0.10 to 0.30

3.2-3.5. (Changed edition, Amendment No. 2).

3.6. Cerium is introduced into Sv-20GSTYUA wire according to calculation and is not determined by chemical analysis.

At the consumer's request, the residual copper content in the wire should be no more than 0.20%.

3.15. For wire grades Sv-01Х19Н9, Sv-04Х19Н9, SV-06Х19Н9Т, Sv-08Х19Н10Г2Б, Sv-08Х19Н10М3Б and Sv-07Х25Н13, the content of the ferrite phase is regulated by agreement of the parties; in this case, it is allowed to increase the chromium content up to 2%, and nickel up to 1% compared to the standards given in table 2.

3.14-3.16. (Changed edition, Amendment No. 2).

3.17. By agreement of the parties, the wire must be made of steel with narrowed limits for the content of chemical elements in comparison with those specified in table 2, as well as limiting the content of chemical elements not specified in table 2 and in paragraphs. 3.7 , 3.9-3.13 And 3.16.

3.18. By agreement of the parties, it is allowed to establish other permissible values ​​for the residual content of chemical elements in comparison with those specified in paragraph. 3.9-3.12.

3.19. Wire with a non-copper-clad surface is rolled into coils, the dimensions and weight of which correspond to those specified in table 5.

Wire group

Wire grade

Sv-08A, Sv-08GA, Sv-10GA, Sv-10G2, Sv-08GS, Sv-12GS, Sv-08G2S, Sv-10GN, Sv-08GSMT, Sv-10NMA

Sv-08MH, Sv-08ХМ, Sv-18ХМА, Sv-08ХНМ, Sv-08ХМFA

Sv-18KhGS, Sv-10KhMFT, Sv-08KhGSMA, Sv-08KhGSMFA, Sv-08KhMNFBA, Sv-08KhN2M, Sv-10KhN2GMT, Sv-08KhN2GMTA, Sv-08KhN2GMYu, Sv-08KhN2G2SMYu, Sv-06N3

Sv-08ХГ2С, Sv-10ХГ2СМА, Sv-04Х2МА, Sv-13Х2МФТ, Sv-08Х3Г2СМ

Sv-08Х19Н10Г2Б, Sv-08Х19Н10М3Б, Sv-07Х25Н13

(Amendment, IUS 6-2003).

Notes:

1.(Deleted, Amendment No. 5).

2. Group 2 wire is allowed, with the consent of the consumer, a nitrogen content of up to 0.012%. .

3. Until January 1, 1981, in wire of groups 4, 5 and 6, an increase in the nitrogen content by 0.005% was allowed above the norms indicated in the table. From January 1, 1981, the specified increase in nitrogen content may be allowed with the consent of the consumer.

4. When manufacturing wire of group 7 with a regulated ferrite phase content, the requirement to limit the nitrogen content is not mandatory.

Note. It is allowed to supply coils with a weight reduced to 50% of that specified in table 5, in a volume of no more than 10% of the total mass of wire in the batch.

(Changed edition, Amendment No. 2).

3.20. Wire with a copper-plated surface is rolled into coils of rectangular cross-section, the dimensions of which must correspond to those specified in table 6. For wire with a diameter of 1.6-3.0 mm, the required coil sizes are specified in the order. By agreement with the consumer, wire with a non-copper-clad surface is also rolled into coils of rectangular cross-section.

3.19, 3.20. (Changed edition, Amendment No. 2)

3.21. By agreement of the parties, the wire is supplied wound on reels or in cassettes.

3.22. By agreement of the parties, it is possible to supply wire in coils of increased weight or on large-sized coils.

3.23. Wire in coils (reels, cassettes) must consist of one piece, rolled in unmixed rows and tightly rolled in such a way as to prevent the possibility of the coil fluffing or unwinding. The ends of the wire should be easy to find. Resistance butt welding of individual pieces of wire from one melt is allowed: in this case, the zone must comply with the requirements of this standard .

3.24. The tensile strength of alloyed and high-alloyed wire must comply with the standards specified in table 7

Notes:

1. Fluctuations in tensile strength in one coil of wire with a diameter of more than 1.4 mm should not exceed 98 MPa (10 kgf/mm2).

2. Alloyed and high-alloy wire is subjected to additional heat treatment. If the specified limits of temporary tensile strength are ensured, additional heat treatment of the wire may not be performed.

3.25. It is allowed to increase the upper limit of tensile strength (regardless of the purpose of the wire):

up to 110 kgf/mm 2 - for wire with a diameter of more than 2 mm grades:

Sv-06Х20Н11М3TB (EP89);

Sv-07Х25Н12Г2Т (EP75);

Sv-06Х25Н12ТУ and SV-08Х25Н13БТУ (EP389);

up to 115 kgf/mm 2 - for wire with a diameter of more than 2 mm grades:

Sv-10Kh16N25AM6 (EI395);

Sv-09Х16Н25М6AF (EI981A);

SV-01Х23Н28М3Д3Т (EP516) and Sv-06Х15Н60М15;

up to 135 kgf/mm 2 - for wire with a diameter of 2 mm grades:

Sv-08Х20Н9Г7Т;

Sv-08Х21Н10Г6;

Sv-10X16N25AM6;

Sv-09Х16Н25М6AF;

up to 145 kgf/mm 2 - for wire with a diameter of less than 2 mm grades:

Sv-08Х20Н9Г7Т;

Sv-10X16N25AM6;

Sv-08Х21Н10Г6;

Sv-09Х16Н25М6AF;

up to 180 kgf/mm 2 grades of wire with a diameter of 2 mm and less grades:

Sv-01Х23Н28М3Д3Т (EP516) and Sv-06Х15Н60М15.

3.26. The surface of the wire must be clean and smooth, without cracks, delaminations, caps, sunsets, shells, nicks, scale, rust, oil and other contaminants. On the surface of the wire, scratches (including tightened ones), scratches, local rippling and individual dents are allowed. The depth of these defects should not exceed the maximum deviation for the diameter of the wire.

At the consumer's request, the wire is manufactured with an improved surface. In this case, small drawing marks, scratches, grinding marks, local ripples and individual dents are allowed on the surface of the wire with a depth of each of these defects not exceeding 1/4 of the maximum deviation in diameter.

3.24-3.26. (Changed edition, Amendment No. 2).

3.27. The presence of technological lubricants on the surface of low-carbon and alloyed wire is not allowed, with the exception of: traces of soap lubricant without graphite and sulfur.

3.28. Wire grades Sv-08GS, Sv-08G2S, Sv-08GSMT, SV-08KhG2S, SV-08KhGSMA, Sv-10KhG2SMA, Sv-08KhGSMFA and Sv-08Kh3G2SM must be manufactured with a copper-plated or non-copper-plated surface. On the surface of non-copper-clad wire, the presence of traces of soapy lubricant weighing up to 0.05% of the weight of the wire is allowed. The type of wire surface is specified in the order. If the type of surface is not specified in the order, the type of wire surface is determined by the manufacturer.

(Changed edition, Amendment No. 5).

3.29. With the consent of the consumer, wire of the Sv-18KhGS and Sv-18KhMA brands may be coated with a continuous layer of neutral lubricant, highly soluble in gasoline, to protect against corrosion.

3.30. High alloy wire shall be supplied pickled and bleached or after heat treatment in an inert atmosphere with a light, light matte or gray surface, free of any traces of grease.

3.3.1. The wire must be accepted by the technical control of the manufacturer. The manufacturer shall ensure that the wire supplied conforms to the requirements of this standard.

4. TEST METHODS

4.1. Wire is supplied in batches. Each batch must consist of wire of the same brand, one heat, one diameter, one purpose and one type of surface.

4.2. All coils, (coils, cassettes) of wire must be inspected and measured.

4.3. The diameter of the wire is measured with an accuracy of 0.01 mm in two mutually perpendicular directions in each section in at least two places at a distance of at least 5 m from each other.

(Changed edition, Amendment No. 2).

4.6a. To check for traces of soap lubricant on the surface of the wire, 2% of the skeins (spools), but not less than three skeins (spools), are selected from each batch. The method for determining the mass of traces of soap lubricant on the surface of a wire is given in Appendix 2.

(Introduced additionally, Amendment No. 5).

4.10. When checking chemical composition wires according to requirements table 2, pp. 3.7 , 3.9-3.13. And 3.16 the actual nitrogen content in alloyed and high-alloyed wire of grades not specified in clause 3.16, as well as the actual residual content of aluminum and vanadium in high-alloy wire and tungsten in alloy and high-alloy wire.

The results of this determination are indicated in the quality document.

Determination of the nitrogen content in low-carbon wire and arsenic in low-carbon and alloyed wire, as well as the residual content of aluminum, molybdenum, titanium and vanadium in alloyed wire and copper in all grades may not be carried out if the steel smelting technology guarantees the content of the listed elements within the limits established this standard.

STEEL WELDING WIRE

TECHNICAL CONDITIONS

GOST 2246-70

PUBLISHING HOUSE OF STANDARDS

Moscow

STATE STANDARD OF THE USSR UNION

Date of introduction 01.01.73

This standard applies to cold-drawn welding wire made from low-carbon, alloy and high-alloy steel.

1. BRANDS AND CLASSIFICATION

1.1. The wire must be made of the following grades:

low-carbon - Sv-08, Sv-08A, Sv-08AA, Sv-08GA, Sv-08GA, Sv-10GA;

alloyed - Sv-08GS, Sv-12GS, Sv-08G2S, Sv-10GN, Sv-08GSMT, Sv-15GSTYUTSA (EP-439), Sv-20GSTYUA, Sv-18KhGS, Sv-10NMA, Sv-08MH, Sv-08KhM , St. -08ХН2М, Sv-10ХН2ГМТ (ЭИ-984), Sv-08ХН2ГМТА (EP-111), Sv-08ХН2ГМУ, Sv-08ХН2Г2СМУ, Sv-06Н3, Sv-10Х5М; high-alloy - Sv-12Х11НМФ, Sv-10Х11НВМФ, Sv-12Х13, SV-20Х13, Sv-06Х14, Sv-08Х14GNT, Sv-10Х17Т, Sv-13Х25Т, Sv-01Х19Н9, Sv-04Х19Н9, Sv-08Х16Н8М2 (EP-377) , Sv-08Х18Н8Г2Б (EP-307), Sv-07Х18Н9ТУ, Sv-06Х19Н9Т, Sv-04Х19Н9С2, Sv-08Х19Н9Ф2С2, Sv-05Х19Н9Ф3С2, Sv-07Х19Н10Б, Sv-08Х19Н10Г2Б (EI-898), Sv-06 Х19Н10М3Т, Sv-08Х19Н10М3Б (EI-902) Sv-07Х25Н13, Sv-08Х25Н13БТУ (EP-389), Sv-13Х25Н18, Sv-08Х20Н9Г7Т, Sv-08Х21Н10Г6, Sv-30Х25Н16Г7, Sv-10Х16Н25AM6, Sv-09Х16Н25М6AF (EI-981А), Sv-01 Х23Н28М3Д3Т (EP-516) , Sv-30Х15Н35В3Б3Т, Sv-08Н50 and Sv-06Х15Н60М15 (EP-367).

(Changed edition, Amendment No. 2).

1.2. According to purpose, the wire is divided into:

for welding (surfacing);

for the manufacture of electrodes (symbol - E).

The purpose of the wire must be specified in the order.

1.3. Based on the type of surface, low-carbon and alloy wire is divided into:

non-copper-plated;

copper-plated - (O).

Special requirements for copper plating of the wire surface (including the total copper content) are established by technical specifications approved in the prescribed manner.

The need to supply wire with a copper-plated surface is specified in the order.

(Changed edition, and revision No. 2).

1.4. At the consumer's request, the wire must be made from steel smelted by electroslag (SH) or vacuum-arc (VA) remelting or in vacuum induction furnaces (VI). In this case, additional requirements for the wire metal (tightening standards for the content of harmful and foreign impurities, introducing restrictions on the content of gases, non-metallic inclusions, etc.) are established by agreement of the parties.

2. ASSORTMENT

2.1. The wire diameters and maximum deviations along them must correspond to those specified in.

Nominal wire diameter

Maximum deviation for wire intended

for welding (surfacing)

for the manufacture of electrodes

0,05

0,06

0,07

0,12

0,06

0,12

0,09

0,09

0,09

0,16

0,12

0,20

0,16

10,0

12,0

0,24

(Changed edition, Rev., No. 2).

2.2. For highly alloyed wire subjected to pickling, maximum deviations in diameter are allowed 50% more than those specified in.

2.3. The ovality of the wire should not exceed half the maximum deviation in diameter.

Examples of symbols:

Welding wire with a diameter of 3 mm, grade Sv-08A, intended for welding (surfacing), with a non-copper-plated surface:

Wire 3 Sv-08A GOST 2246-70

Welding wire with a diameter of 4 mm, grade Sv-04Х19Н9, intended for the manufacture of electrodes:

Wire 4 Sv-04K19N9 - E GOST 2246-70

Welding wire with a diameter of 2 mm, grade Sv-ZOKH25N16G7, intended for welding (surfacing), from steel made by electroslag remelting:

Wire 2 Sv-30Х25Н16Г7-Ш GOST 2246-70.

Welding wire with a diameter of 1.6 mm, grade Sv-08G2S, intended for welding (surfacing), with a copper-plated surface:

Wire 1.6, Sv-08G2S - O GOST 2246-70

Welding wire with a diameter of 2.5 mm, brand Sv-08KhGSMFA, intended for the manufacture of electrodes from steel smelted in a vacuum induction furnace, with a copper-plated surface:

Wire 2.5Sv-08HGSMFLA-VI-E-O GOST 2246-70

3. TECHNICAL REQUIREMENTS

3.1. The wire is made of steel, the chemical composition of which is given in.

INTERSTATE STANDARD

STEEL WELDING WIRE

TECHNICAL CONDITIONS

IPC PUBLISHING HOUSE OF STANDARDS
Moscow

INTERSTATE STANDARD

Date of introduction 01/01/73

This standard applies to cold-drawn welding wire made from low-carbon, alloy and high-alloy steel.

1. BRANDS AND CLASSIFICATION

1.1. The wire must be made of the following grades:

low-carbon - Sv-08, Sv-08A, Sv-08AA, Sv-08GA, Sv-10GA and Sv-10G2;

alloyed - Sv-08GS, Sv-12GS, Sv-08G2S, Sv-10GN, Sv-08GSMT, Sv-15GSTYUTSA (EP-439), Sv-20GSTYUA, Sv-18KhGS, Sv-10NMA, Sv-08MH, Sv-08KhM , St. -08ХН2М, Sv-10ХН2ГМТ (ЭИ-984), Sv-08ХН2ГМТА (EP-111), Sv-08ХН2ГМУ, Sv-08ХН2Г2СМУ, Sv-06Н3, Sv-10Х5М;

high-alloy - Sv-12Х11НМФ, Sv-10Х11НВМФ, Sv-12Х13, SV-20Х13, Sv-06Х14, Sv-08Х14GNT, Sv-10Х17Т, Sv-13Х25Т, Sv-01Х19Н9, Sv-04Х19Н9, Sv-08Х16Н8М2 (EP-377) , Sv-08Х18Н8Г2Б (EP-307), Sv-07Х18Н9ТУ, Sv-06Х19Н9Т, Sv-04Х19Н9С2, Sv-08Х19Н9Ф2С2, Sv-05Х19Н9Ф3С2, Sv-07Х19Н10Б, Sv-08Х19Н10Г2Б (EI-898), Sv-06 Х19Н10М3Т, Sv-08Х19Н10М3Б (EI-902) Sv-07Х25Н13, Sv-08Х25Н13БТУ (EP-389), Sv-13Х25Н18, Sv-08Х20Н9Г7Т, Sv-08Х21Н10Г6, Sv-30Х25Н16Г7, Sv-10Х16Н25AM6, Sv-09Х16Н25М6AF (EI-981А), Sv-01 Х23Н28М3Д3Т (EP-516) , Sv-30Х15Н35В3Б3Т, Sv-08Н50 and Sv-06Х15Н60М15 (EP-367).

1.2. According to purpose, the wire is divided into:

for welding (surfacing);

for the manufacture of electrodes (symbol - E).

The purpose of the wire must be specified in the order.

1.3. Based on the type of surface, low-carbon and alloy wire is divided into:

non-copper-plated;

copper-plated - (O).

Special requirements for copper plating of the wire surface (including the total copper content) are established by technical specifications approved in the prescribed manner.

The need to supply wire with a copper-plated surface is specified in the order.

(Changed edition, amendment No. 2).

1.4. At the consumer's request, the wire must be made from steel smelted by electroslag (SH) or vacuum-arc (VA) remelting or in vacuum induction furnaces (VI). In this case, additional requirements for the wire metal (tightening standards for the content of harmful and foreign impurities, introducing restrictions on the content of gases, non-metallic inclusions, etc.) are established by agreement of the parties.

2. ASSORTMENT

2.1. The wire diameters and maximum deviations along them must correspond to those indicated in the table. 1.

Table 1

Nominal wire diameter

Nominal wire diameter

Maximum deviation for wire intended

for welding (surfacing)

for the manufacture of electrodes

for welding (surfacing)

for the manufacture of electrodes

(Changed edition, Rev., No. 2).

2.2. For highly alloyed wire subjected to pickling, maximum deviations in diameter are allowed 50% more than those indicated in the table. 1.

2.3. The ovality of the wire should not exceed half the maximum deviation in diameter.

Examples of symbols:

Welding wire with a diameter of 3 mm, grade Sv-08A, intended for welding (surfacing), with a non-copper-plated surface:

Welding wire with a diameter of 4 mm, grade Sv-04Х19Н9, intended for the manufacture of electrodes:

Welding wire with a diameter of 2 mm, grade Sv-30Х25Н16Г7, intended for welding (surfacing), from steel made by electroslag remelting:

Welding wire with a diameter of 1.6 mm, grade Sv-08G2S, intended for welding (surfacing), with a copper-plated surface:

Welding wire with a diameter of 2.5 mm, brand Sv-08KhGSMFA, intended for the manufacture of electrodes from steel smelted in a vacuum induction furnace, with a copper-plated surface:

Wire 2.5Sv-08KhGSMFA-VI-E-O GOST 2246-70

3. TECHNICAL REQUIREMENTS

3.1. The wire is made of steel, the chemical composition of which is given in table. 2.


table 2

Wire grade

Chemical composition, %

Manganese

Molybdenum

Sera, no more

Phosphorus, no more

Other items

Low carbon wire

No more than 0.10

No more than 0.03

No more 0,15

No more than 0.30

Aluminum, no more than 0.01

No more than 0.10

No more than 0.03

No more than 0.12

No more than 0.25

Aluminum, no more than 0.001

No more than 0.10

No more than 0.03

No more than 0.10

No more than 0.25

Aluminum, no more than 0.01

No more than 0.10

No more than 0.06

No more than 0.10

No more than 0.25

No more than 0.12

No more than 0.06

No more than 0.20

No more than 0.30

No more than 0.12

No more than 0.06

No more than 0.20

No more than 0.30

Alloy wire

No more than 0.10

No more than 0.20

No more than 0.25

No more than 0.14

No more than 0.20

No more than 0.30

No more than 0.20

No more than 0.25

No more than 0.12

No more than 0.20

No more than 0.30

No more than 0.30

St.-15GSTYUTSA

No more than 0.30

No more than 0.40

Aluminum 0.20-0.50; zirconium 0.05-0.15; cerium, not less than 0.04

Sv-20GSTUA

No more than 0.30

No more than 0.40

Aluminum 0.20-0.50; cerium 0.30-0.45

No more than 0.30

No more than 0.20

No more than 0.30

No more than 0.30

No more than 0.30

No more than 0.10

No more than 0.30

Vanadium 0.15-0.30

No more than 0.35

No more than 0.30

Vanadium 0.20-0.35

No more than 0.25

Sv-08HGSMA

No more than 0.30

Sv-10ХГ2СМА

No more than 0.30

Sv-08KhGSMFA

No more than 0.30

Vanadium 0.20-0.35

No more than 0.06

No more than 0.25

Sv-13Х2МФТ

No more than 0.35

No more than 0.30

Vanadium 0.20-0.35

Sv-08H3G2SM

No more than 0.10

No more than 0.30

Sv-08ХМNFBA

Vanadium 0.20-0.35; niobium 0.10-0.23

No more than 0.10

Sv-10HN2GMT

Sv-08HN2GMTA

Sv-08HN2GMYU

Aluminum 0.06-0.18

Sv-08ХН2Г2СМУ

Aluminum 0.06-0.18

No more than 0.08

No more than 0.30

No more than 0.30

No more than 0.12

No more than 0.30

High alloy wire

Sv-12Х11НМФ

Vanadium 0.25-0.50

Sv-10Х11НВМФ

Vanadium 0.25-0.50; tungsten 1.00-1.40

No more than - 0.60

No more than 0.60

No more than 0.60

No more than 0.08

No more than - 0.60

SV-08Х14GNT

No more than 0.10

No more than 0.12

No more than 0.80

No more than 0.70

No more than 0.60

No more than 0.15

No more than 1.00

No more than 0.80

No more than 0.60

No more than 0.03

No more than 0.06

Sv-08Х16Н8М2

No more than 0.60

Sv-08Х18Н8Г2Б

Niobium 1.20-1.50

Sv-07Х18Н9ТУ

No more than 0.09

No more than 0.80

No more than 2.00

Aluminum 0.60-0.95

Sv-06Х19Н9Т

No more than 0.08

Sv-04Х19Н9С2

No more than 0.06

Sv-08Х19Н9Ф2С2

No more than 0.10

Vanadium 1.80-2.40

Sv-05Х19Н9Ф3С2

No more than 0.07

Vanadium 2.20-2.70

Sv-07Х19Н10Б

No more than 0.70

Niobium 1.20-1.50

Sv-08Х19Н10Г2Б

Niobium 0.90-1.30

Sv-06Х19Н10М3Т

No more than 0.08

Sv-08Х19Н10М3Б

No more than 0.10

No more than 0.60

Niobium 0.90-1.30

Sv-04Х19Н11М3

No more than 0.06

No more than 0.60

Sv-05Х20Н9ФБС

No more than 0.07

Niobium 1.00-1.40; vanadium 0.90-1.30

Sv-06Х20Н11М3TB

No more than 0.08

No more than 0.80

Niobium 0.60-0.90

No more than 0.12

No more than 0.80

Sv-07Х25Н12Г2Т

No more than 0.09

Sv-06Х25Н12ТУ

No more than 0.08

No more than 0.80

Aluminum 0.40-0.80

No more than 0.09

Sv-08Х25Н13БТУ

No more than 0.10

No more than 0.55

Niobium 0.70-1.10; aluminum 0.40-0.90

No more than 0.15

No more than 0.50

Sv-08Х20Н9Г7Т

No more than 0.10

Sv-08Х21Н10Г6

No more than 0.10

Sv-30Х25Н16Г7

No more than 0.30

Sv-10X16N25AM6

No more than 0.60

Nitrogen 0.10-0.20

Sv-09Х16Н25М6AF

No more than 0.40

Vanadium 0.70-1.00; nitrogen 0.10-0.20

Sv-01Х23Н28М3Д3Т

No more than 0.03

No more than 0.55

No more than 0.55

Copper 2.50-3.50

Sv-30Х15Н35В3Б3Т

No more than 0.60

Tungsten 2.50-3.50; niobium 2.80-3.50

No more than 0.10

No more than 0.50

No more than 0.50

No more than 0.30

Sv-06Х15Н60М15

No more than 0.08

No more than 0.50

Iron, no more than 4.0

Notes:

1. Symbols for wire grades consist of the index St (welding) and the numbers and letters following it.

2. The numbers following the C index indicate the average carbon content in hundredths of a percent.

3. The chemical elements contained in the metal of the wires are designated by the following letters:

A - nitrogen (only in high-alloy wires); B - niobium; B - tungsten; G - manganese; D - copper; M - molybdenum; N - nickel; C - silicon; T - titanium; F - vanadium; X - chrome; C - zirconium; Yu - aluminum.

4. The numbers following the letter designations of chemical elements indicate the average content of the element as a percentage. There are no numbers after the letter designation of elements contained in small quantities.

5. The letter A at the end of the symbols for grades of low-carbon and alloyed wire indicates increased purity of the metal in terms of sulfur and phosphorus content. In Sv-08AA wire, the double letter A indicates a lower content of sulfur and phosphorus compared to Sv-08A wire.

(Changed edition, Amendment No. 2; Amendments, IUS 10-2001, 6-2003).


3.2. At the request of the consumer, the carbon content in Sv-08GSMT wire should be 0.08 - 0.14%, in this case the wire is designated Sv-10GSMT.

By agreement of the parties, it is possible to supply wire of the Sv-08MH, Sv-08KhM and Sv-08KhMFA brands with a carbon content of 0.08 - 0.13%; in this case, the wire is designated Sv-10MH, Sv-10KhM and Sv-10KhMFA, respectively.

(Changed edition, Amendment No. 2).

3.3. Allowed increase in carbon content:

up to 0.15% - in wire grade Sv-12X13;

up to 0.10% - in wire grade Sv-07Х19Н10Б.

With the consent of the consumer, a mass fraction of manganese of 1.65 - 2.10% is allowed in Sv-08G2S wire with a diameter of up to 1.4 mm inclusive.

(Changed edition, Revised: No. 3).

3.4. In Sv-07X25N13 grade wire intended for welding (surfacing), the chromium content must be at least 23.5%.

By agreement of the parties, in Sv-08Kh21N10G6 wire, the ratio of chromium content to nickel content must be at least 2.

3.5. If the other requirements of this standard are met, it is allowed to supply wire with a deviation in the content of one of the chemical elements from the standards given in table. 2. Permissible deviations must correspond to those indicated in the table. 3.

Note. With the consent of the consumer, subject to compliance with the permissible deviations specified in table. 3. It is permitted to supply wire with deviations in the content of several chemical elements from the standards given in table. 2.

Table 3

Name of chemical element

Actual element content in wire, %

Permissible deviation, %

From 0.08 to 0.12

Manganese

From 0.60 to 1.20

From 0.35 to 0.85

From 0.30 to 0.90

From 0.30 to 0.90

St. 0.90 to 1.80

St. 1.80 to 7.00

From 0.30 to 1.20

St. 1.20 to 2.50

St. 2.50 to 7.00

From 0.20 to 0.80

From 0.30 to 1.50

Tungsten

From 1.00 to 2.50

Molybdenum

From 0.30 to 1.00

St. 1.00 to 3.00

Aluminum

From 0.10 to 0.30

3.4, 3.5.(Changed edition, Amendment No. 2).

3.6. Cerium is introduced into Sv-20GSTYUA wire according to calculation and is not determined by chemical analysis.

3.7. In low-carbon and alloyed wire, the arsenic content should not exceed 0.08%.

3.8. With the consent of the consumer, a residual aluminum content of up to 0.05% is allowed in wire of the Sv-08 and Sv-08A brands.

3.9. In low-carbon wire of the Sv-08GA, Sv-10GA and Sv-10G2 grades and alloyed wire (not alloyed with aluminum), the residual aluminum content should not exceed 0.05%.

3.10. And for wires not alloyed with molybdenum, the residual molybdenum content should not exceed:

0.15% - in alloyed wire;

0.25% - in high-alloy wire.

3.11. In wire not alloyed with titanium, the residual titanium content should not exceed:

0.04% - in alloyed wire;

0.2% - in high-alloy wire.

At the consumer's request, in wire grades Sv-04Х19Н11М3 and Sv-08Х21Н10Г6 the residual titanium content should not exceed 0.1%.

3.12. In alloyed wire not alloyed with vanadium, the residual vanadium content should not exceed 0.05%, with the exception of wire grades Sv-08Kh3G2SM and Sv-10Kh5M, in which the residual vanadium content is allowed up to 0.08%.

3.13. In wire not alloyed with copper, the residual copper content should not exceed 0.25%.

At the consumer's request, the residual copper content in the wire should be no more than 0.20%.

Note. The requirements of clause 3.13 apply to wire with a non-copper coated surface.

2 - 6% - in wire grades Sv-08Х16Н8М2 and Sv-08Х18Н8Г2Б;

3 - 8% - in wire grade Sv-04Х19Н11М3.

In the wire of the listed grades, it is allowed to increase the chromium content to 1% above the standards given in the table. 2.

3.15. For wire grades Sv-01Х19Н9, Sv-04Х19Н9, SV-06Х19Н9Т, Sv-08Х19Н10Г2Б, Sv-08Х19Н10М3Б and Sv-07Х25Н13, the content of the ferrite phase is regulated by agreement of the parties; in this case, it is allowed to increase the chromium content to 2%, and nickel to 1% compared to the standards given in table. 2.

3.14, 3.15 (Changed edition, Amendment No. 2).

Table 4

Wire group

Wire grade

Sv-08A, Sv-08GA, Sv-10GA, Sv-10G2, Sv-08GS, Sv-12GS, Sv-08G2S, Sv-10GN, Sv-08GSMT, Sv-10NMA

Sv-08MH, Sv-08ХМ, Sv-18ХМА, Sv-08ХНМ, Sv-08ХМFA

Sv-18KhGS, Sv-10KhMFT, Sv-08KhGSMA, Sv-08KhGSMFA, Sv-08KhMNFBA, Sv-08KhN2M, Sv-10KhN2GMT, Sv-08KhN2GMTA, Sv-08KhN2GMYu, Sv-08KhN2G2SMYu, Sv-06N3

Sv-08ХГ2С, Sv-10ХГ2СМА, Sv-04Х2МА, Sv-13Х2МФТ, Sv-08Х3Г2СМ

Sv-08Х19Н10Г2Б, Sv-08Х19Н10М3Б, Sv-07Х25Н13

Notes:

1.(Deleted, Amendment No. 5).

2. Group 2 wire is allowed, with the consent of the consumer, a nitrogen content of up to 0.012%.

3. Before January 1, 1981, in wire of groups 4, 5 and 6, an increase in the nitrogen content by 0.005% was allowed above the norms indicated in the table. From January 1, 1981, the specified increase in nitrogen content may be allowed with the consent of the consumer.

4. When manufacturing wire of group 7 with a regulated ferrite phase content, the requirement to limit the nitrogen content is not mandatory.

(Changed edition, Amendment No. 2, 5; Amendment, IUS 6-2003).

3.17. By agreement of the parties, the wire must be made of steel with narrowed limits for the content of chemical elements in comparison with those indicated in the table. 2, as well as limiting the content of chemical elements not listed in Table 2 and in paragraphs. 3.7, 3.9 - 3.13 and 3.16.

3.18. By agreement of the parties, it is allowed to establish other permissible values ​​for the residual content of chemical elements compared to those specified in clauses 3.9 - 3.12.

3.19. Wire with a non-copper-clad surface is rolled into coils, the dimensions and weight of which correspond to those indicated in the table. 5.

Table 5

Wire diameter, mm

Inner diameter of turns of wire coil, mm

Weight of wire coil, kg, not less

low carbon

doped

highly alloyed

Note. It is allowed to supply coils with a weight reduced to 50% of that indicated in the table. 5, in a volume of no more than 10% of the total mass of wire in the batch.

3.20. Wire with a copper-plated surface is rolled into coils of rectangular cross-section, the dimensions of which must correspond to those indicated in the table. 6. For wire with a diameter of 1.6 - 3.0 mm, the required coil sizes are specified in the order. By agreement with the consumer, wire with a non-copper-clad surface is also rolled into coils of rectangular cross-section.

Table 6

3.19, 3.20.(Changed edition, Amendment No. 2)

3.21. By agreement of the parties, the wire is supplied wound on reels or in cassettes.

3.22. By agreement of the parties, it is possible to supply wire in coils of increased weight or on large-sized coils.

3.23. Wire in coils (reels, cassettes) must consist of one piece, rolled in unmixed rows and tightly rolled in such a way as to prevent the possibility of the coil fluffing or unwinding. The ends of the wire should be easy to find. Contact butt welding of individual pieces of wire from one heat is allowed: in this case, the welded joint area must comply with the requirements of this standard .

3.24. The tensile strength of alloyed and high-alloy wire must comply with the standards specified in table. 7

Table 7

Wire diameter, mm

Temporary tensile strength of wire, MPa (kgf/mm 2), intended

for welding (surfacing)

for the manufacture of electrodes

882-1372 (90-140)

882-1323 (90-135)

882-1274 (90-130)

686-980 (70-100)

784-1176 (80-120)

686-980 (70-100)

686-1029 (70-105)

Notes:

1. Fluctuations in tensile strength in one coil of wire with a diameter of more than 1.4 mm should not exceed 98 MPa (10 kgf/mm2).

2. Alloyed and high-alloy wire is subjected to additional heat treatment. If the specified limits of temporary tensile strength are ensured, additional heat treatment of the wire may not be performed.

3.25. It is allowed to increase the upper limit of tensile strength (regardless of the purpose of the wire):

up to 110 kgf/mm 2 - for wire with a diameter of more than 2 mm grades:

Sv-06Х20Н11М3TB (EP89);

Sv-07Х25Н12Г2Т (EP75);

Sv-06Х25Н12ТУ and SV-08Х25Н13БТУ (EP389);

up to 115 kgf/mm 2 - for wire with a diameter of more than 2 mm grades:

Sv-10Kh16N25AM6 (EI395);

Sv-09Х16Н25М6AF (EI981A);

SV-01Х23Н28М3Д3Т (EP516) and Sv-06Х15Н60М15;

up to 135 kgf/mm 2 - for wire with a diameter of 2 mm grades:

Sv-08Х20Н9Г7Т;

Sv-08Х21Н10Г6;

Sv-10X16N25AM6;

Sv-09Х16Н25М6AF;

up to 145 kgf/mm 2 - for wire with a diameter of less than 2 mm grades:

Sv-08Х20Н9Г7Т;

Sv-10X16N25AM6;

Sv-08Х21Н10Г6;

Sv-09Х16Н25М6AF;

up to 180 kgf/mm 2 grades of wire with a diameter of 2 mm and less grades:

Sv-01Х23Н28М3Д3Т (EP516) and Sv-06Х15Н60М15.

3.26. The surface of the wire must be clean and smooth, without cracks, delaminations, caps, sunsets, shells, nicks, scale, rust, oil and other contaminants. On the surface of the wire, scratches (including tightened ones), scratches, local rippling and individual dents are allowed. The depth of these defects should not exceed the maximum deviation for the diameter of the wire.

At the consumer's request, the wire is manufactured with an improved surface. In this case, small drawing marks, scratches, grinding marks, local ripples and individual dents are allowed on the surface of the wire with a depth of each of these defects not exceeding 1/4 of the maximum deviation in diameter.

3.24 - 3.26.(Changed edition, Amendment No. 2).

3.27. The presence of technological lubricants on the surface of low-carbon and alloyed wire is not allowed, with the exception of: traces of soap lubricant without graphite and sulfur.

3.28. Wire grades Sv-08GS, Sv-08G2S, Sv-08GSMT, Sv-08KhG2S, Sv-08KhGSMA, Sv-10KhG2SMA, Sv-08KhGSMFA and Sv-08Kh3G2SM must be manufactured with a copper-plated or non-copper-plated surface. On the surface of non-copper-clad wire, the presence of traces of soapy lubricant weighing up to 0.05% of the weight of the wire is allowed. The type of wire surface is specified in the order. If the type of surface is not specified in the order, the type of wire surface is determined by the manufacturer.

(Changed edition, Amendment No. 5).

3.29. With the consent of the consumer, wire of the Sv-18KhGS and Sv-18KhMA brands may be coated with a continuous layer of neutral lubricant, highly soluble in gasoline, to protect against corrosion.

3.30. High alloy wire shall be supplied pickled and bleached or after heat treatment in an inert atmosphere with a light, light matte or gray surface, free of any traces of grease.

3.3.1. The wire must be accepted by the technical control of the manufacturer. The manufacturer shall ensure that the wire supplied conforms to the requirements of this standard.

4. TEST METHODS

4.1. Wire is supplied in batches. Each batch must consist of wire of the same brand, one heat, one diameter, one purpose and one type of surface.

4.2. All coils, (coils, cassettes) of wire must be inspected and measured.

4.3. The diameter of the wire is measured with an accuracy of 0.01 mm in two mutually perpendicular directions in each section in at least two places at a distance of at least 5 m from each other.

4.4. Samples for the chemical composition are taken according to GOST 7565 during steel smelting and, if necessary, in wire.

To check the chemical composition of the wire, 0.5% of the coils (coils, cassettes) are selected from each batch, but not less than two coils (coils, cassettes). Samples for analysis must be taken from both ends of each controlled skein or from two sections, at a distance of at least 5 m from each other, of each controlled reel (cassette).

(Changed edition, Amendment No. 2).

4.5. To check the tensile strength of wire, 2% of the coils (coils, cassettes) are selected from each batch, but not less than three coils (coils, cassettes). Samples for testing must be taken from two sections of each controlled skein (reel, cassette) at a distance of at least 5 m from each other.

To check the α-phase content during steel smelting, a sample is taken from each ladle liquid metal during the casting process.

To check the α-phase content in the wire, 3% of the coils (coils, cassettes) are selected from each batch, but not less than three coils (coils, cassettes). Samples for testing must be taken from both ends of each inspected skein or from two sections of each inspected reel (cassette) at a distance of at least 5 m from each other.)

The method for determining the α-phase content is given in Appendix 1.

(Changed edition, Amendment No. 2).

4.6a. To check for traces of soap lubricant on the surface of the wire, 2% of the skeins (spools), but not less than three skeins (spools), are selected from each batch. The method for determining the mass of traces of soap lubricant on the surface of the wire is given in Appendix 2.

(Introduced additionally, Amendment No. 5).

4.7. The chemical composition is determined according to GOST 12344 - GOST 12365, GOST 28473, GOST 22536.0 - GOST 22536.12 or other methods that provide the necessary accuracy of determination.

4.7, 4.8. (Changed edition, Amendment No. 2).

4.9. Tensile tests of wire to determine tensile strength are carried out according to GOST 10446.

4.10. When checking the chemical composition of the wire in accordance with the requirements of Table. 2, pp. 3.7, 3.9 - 3.13. and 3.16, the actual nitrogen content in alloyed and high-alloyed wire of grades not specified in clause 3.16, as well as the actual residual content of aluminum and vanadium in high-alloyed wire and tungsten in alloyed and high-alloyed wire are subject to mandatory determination.

The results of this determination are indicated in the quality document.

Determination of the nitrogen content in low-carbon wire and arsenic in low-carbon and alloyed wire, as well as the residual content of aluminum, molybdenum, titanium and vanadium in alloyed wire and copper in all grades may not be carried out if the steel smelting technology guarantees the content of the listed elements within the limits established this standard.

(Changed edition, Amendment No. 2).

4.11. If unsatisfactory test results are obtained for at least one of the indicators, repeated tests are carried out on a double number of samples taken from the same control batch of wire.

If repeated tests receive unsatisfactory results, the manufacturer can re-sort the batch of wire by testing each coil (coil, cassette) according to the same parameters, followed by delivery of the coils (coils, cassettes) that have passed the tests.

4.12. For control testing by the consumer of the quality of the wire and its compliance with the requirements of this standard, the sampling rules and test methods specified above must be applied.

5. LABELING, PACKAGING, TRANSPORTATION AND STORAGE

5.1. Each skein must be tightly tied with soft wire in at least three places, evenly spaced around the perimeter of the skein.

5.2. Coils of wire from the same batch can be bundled into coils. The weight of one skein or coil should not exceed 80 kg. By agreement with the consumer, a weight of skeins or coils of more than 80 kg is allowed.

5.3. A metal label is attached to each skein (coil, coil, cassette) of wire, which should indicate:

a) name or trademark of the manufacturer;

b) symbol of the wire;

c) batch number;

d) technical control mark.

Transport marking - according to GOST 14192.

(Changed edition, Amendment No. 2, 4).

5.4. Each coil (coil, coil) of wire with a diameter of 0.5 mm or less must be wrapped in a layer of paper and packed in a thick wooden box according to GOST 18617 or other containers (metal, cardboard, plastic), according to regulatory and technical documentation.

Each coil (coil, coil) of wire with a diameter of over 0.5 mm must be wrapped in a layer of paper, then in a layer of polymer film, non-woven materials or fabric made of chemical fibers.

For mechanized packaging, each coil of wire must be wrapped in a layer of cable crepe paper