GOST 4442-2014

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  ГОСТ 4442-2014

GOST 4442−2014 Strips and bands of lead brass. Specifications

GOST 4442−2014

INTERSTATE STANDARD

STRIPS AND BANDS OF LEAD BRASS

Specifications

Strips and Bands of lead brass. Specifications

ISS 77.150.30

Date of introduction 2015−09−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Technical Committee for standardization TC 106 «Tsvetmetprokat», Scientific-research, project and design Institute for alloys and processing of nonferrous metals «joint-stock company «Institute tsvetmetobrabotka"

2 as AMENDED by the Federal Agency for technical regulation and Metrology

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol of November 14, 2014 N 72-N)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology dated 26 November 2014 N 1824-St inter-state standard GOST 4442−2014 introduced as a national standard of the Russian Federation from September 1, 2015.

5 REPLACE GOST 4442−72


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard applies to cold rolled strips and bands of lead brass, is designed for precision instrumentation.

2 Normative references

This standard uses the regulatory references to the following international standards:

GOST 166−89 (ISO 3599−76) Calipers. Specifications

GOST 427−75 Rulers measuring metal. Specifications

GOST 1497−84 (ISO 6892−84) Metals. Test methods tensile

GOST 1652.1−77 (ISO 1554−76) Alloys copper-zinc. Methods for determination of copper

GOST 1652.2−77 (ISO 4749−84) Alloys copper-zinc. Methods for determination of lead

GOST 1652.3−77 (ISO 1812−76, ISO 4748−84) Alloys copper-zinc. Methods of iron determination

GOST 1652.4−77 Alloys copper-zinc. Methods for determination of manganese

GOST 1652.5−77 (ISO 4751−84) Alloys copper-zinc. Methods for determination of tin

GOST 1652.6−77 Alloys copper-zinc. Methods for determination of antimony

GOST 1652.7−77 Alloys copper-zinc. Methods for determination of bismuth

GOST 1652.8−77 Alloys copper-zinc. Methods for determination of arsenic

GOST 1652.9−77 (ISO 7266−84) Alloys copper-zinc. Methods of determining sulphur

GOST 1652.10−77 Alloys copper-zinc. Methods for determination of aluminium

GOST 1652.11−77 (ISO 4742−84) Alloys copper-zinc. Methods for determination of Nickel

GOST 1652.12−77 Alloys copper-zinc. Methods for determination of silicon

GOST 1652.13−77 Alloys copper-zinc. Methods for determination of phosphorus

GOST 2991−85 wooden disposable Boxes for loads up to 500 kg. General specifications

The Wire GOST 3282−74 General purpose low carbon steel. Specifications

GOST 3560−73 package steel Strip. Specifications

GOST 4381−87 Micrometers lever. General specifications

GOST 6507−90 Micrometers. Specifications

GOST 7502−98 metallic measuring tape. Specifications

GOST 8273−75 wrapping Paper. Specifications

GOST 9078−84 flat Pallets. General specifications

GOST 9557−87 flat wooden Pallet size 800x1200 mm. specifications

GOST 10198−91 wooden Boxes for goods of mass over 200 up to 20000 kg. General specifications

GOST 11701−84 Metals. Methods tensile tests of thin sheets and strips

GOST 14192−96 Marking of cargo

GOST 15102−75 the universal metal closed Container of nominal gross mass 5,0 t Technical specifications

GOST 15527−2004 Alloys copper-zinc (brass) pressure treated. Brand

GOST 15846−2002 Products that are sent to the far North regions and equated areas. Packing, marking, transportation and storage

GOST 18477−79 Containers are universal. The types, basic parameters and dimensions

GOST 20435−75 the universal metal closed Container of nominal gross mass 3,0 t specifications

GOST 21073.1−75 ferrous Metals. Determination of grain size by comparison with the scale of microstructures

GOST 21140−88 Tara. System sizes

GOST 21650−76 means of fastening of package cargoes in transport packages. General requirements

GOST 22225−76 universal Containers with a gross weight 0,625 and 1,25 t. specifications

GOST 24047−80 Semi-finished products from nonferrous metals and their alloys. Sampling for tensile test

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

GOST 25086−2011 non-ferrous metals and their alloys. General requirements for methods of analysis

GOST 26663−85 transport Packs. Formation with the use of packaging. General technical requirements

GOST 26877−2008 metal Products. Methods of measuring form deviations of

ST SEV 543−77 Number. Record rules and rounding

Note — When using this standard appropriate to test the effect of reference standards for the sign «National standards» drawn up as of January 1 of the current year and related information signs, published in the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Assortment

3.1 Thickness and width of strips and the maximum deviations thereon shall be as specified in table 1.


Table 1

In millimeters

It is possible to produce tapes of intermediate sizes thickness limit deviations for the next larger size.

3.2 Thickness and width of bands and tolerances for them to comply with the specified values in table 2.


Table 2

In millimeters

It is possible to produce bands of intermediate sizes thickness limit deviations for the next larger size.

3.3 the Length of the tape shall be as defined in table 3.


Table 3

Each party is allowed tapes with thickness up to 0.50 mm, inclusive, in length from 1 to 10 m, tape thickness greater than 0.50 to 2.00 mm with length from 1 to 5 m in an amount of not more than 15% of the party.

At customer’s request, produce tape length:

— thickness from 0.10 to 0.50 mm inclusive — not less than 20 m;

— of a thickness of more than 0.50 to 1.00 mm inclusive — not less than 10 m;

— of a thickness of more than 1.00 to 2.00 mm inclusive — not less 7 m.

Presence of ribbons with thickness from 0.10 to 0.50 mm, inclusive, in length from 10 to 20 m strips of thickness greater than 0.50 to 1.00 mm inclusive in length from 5 to 10 m of ribbons with thickness of more than 1.00 to 2.00 mm in length from 5 to 7 m in an amount of not more than 15% of the party.

At the request of the consumer tape cropped length are not allowed.

3.4 Length of strips should be not less than 1 m presence of bands with a length of 0.5 to 1 m in amount of not more than 1% of the party.

At the request of the consumer, stripes, cropped length are not allowed

By agreement with the consumer allowed the presence of bands with a length of 0.5 to 1 m in amount of not more than 20% of the party.

The legend of ribbons and bands placed according to the scheme:

Use the following abbreviations:

method of manufacture:

— cold-rolled — D;

sectional shape:

— rectangular — OL;

precision manufacturing:

— normal — N,

— increased — P,

— high — In;

condition:

— soft — M,

— semi-solid — P,

— solid — T,

— extra hard — On;

length:

— random — ND;

special conditions for semi-solid and solid ribbon and strip:

— regular strength — OP,

— high tensile strength — PP.

Examples of symbols:

1 cold-rolled steel Strip, rectangular, normal accuracy of production, soft, thickness 0.50 mm, width 30 mm, random length, from brass grade LS 63−3:

Tape DPMM 0,50x30 ND LS 63−3 GOST 4442−2014

2 cold-rolled steel Strip, rectangular, high precision manufacturing, semi-solid, thickness 0.25 mm, width 35 mm, random length from brass grade LS 63−3, ruggedized:

Tape DPRP 0,25x35 ND LS 63−3 PP GOST 4442−2014

3 Strip cold rolled, rectangular, normal accuracy of production, extra hard, 2.0 mm thick, 50 mm wide, random length from brass grade LS 63−3:

Strip DPRO 2,0x50 ND LS 63−3 GOST 4442−2014

4, the Strip is cold-rolled, rectangular, high precision manufacturing, rigid, 3.0 mm thickness, 100 mm in width, random length from brass grade LS 63−3, ordinary-strength:

Strip DPCT 3,0x100 ND LS 63−3 OP GOST 4442−2014

4 Technical requirements

4.1 Tape manufactured in accordance with the requirements of this standard from brass grade LS 63−3 according to GOST 15527.

4.2 Tape and strip manufactures cold-rolled in a soft, half hard, hard and extra hard condition.

Extra hard tapes is manufactured with a thickness to 1.20 mm, inclusive, extra hard strips up to 2.5 mm, inclusive.

4.3 the surface of the ribbons and strips must be free from contamination, hinder inspection must not be captured, delamination, bubbles, cracks, rough scratches and nicks, pits and foreign inclusions.

On the surface of the belts and bands are allowed some minor surface defects, not outputting to the tape at reference sweep for tolerances for thickness.

Allowed color of a tint, local redness and minor darkening of the surface of ribbons and bands.

Allowed the surface quality of the strips and stripes set to the samples approved in the established order.

4.4 Soft tape needs to be etched.

4.5 Tape should be trimmed evenly and must not have burrs, which significantly affect the use of tapes and bands for the purpose. Wavy, wrinkled and ragged edge is not allowed. Only small undulations, disappearing with a control curve.

Soft, semi-rigid strip with a thickness of 5.0 mm and a width of 150 mm and a thickness of from 5.5 to 8.0 mm and width from 170 to 180 mm are made without trimming.

4.6 Camber strips and strips must not exceed 4 mm per 1 m length. By agreement between the consumer and the manufacturer, the camber strips shall not exceed 3 mm per 1 m length.

4.7 the Deflection of the strips must not exceed 7 mm per 1 m length of the strip.

4.8 Mechanical properties of strips and strips must match the values specified in table 4.


Table 4

As required for solid ribbon and strip ordinary strength elongation should not be less than 5%.

4.9 Kink bands in hard and extra hard conditions must be fine-grained, without delamination and porosity visible to the naked eye.

Allowed the nature of the fracture to determine the samples agreed between manufacturer and user.

4.10 grain Size of strips and stripes in a soft state should not exceed 50 microns (0.05 mm).

5 acceptance Rules

5.1 Tape take parties. The party should consist of strips or bands of the same size, the same condition of material and the same manufacturing precision and decorated with a single document about quality that contains:

is the trademark or name and trademark of manufacturer;

— the name of the country of manufacture;

— legal address of the manufacturer and (or) the seller;

— the symbol of the strips or bands;

— test results (as required);

— batch number:

the weight of the party;

— the number of seats.

The weight of the batch should not exceed 3,000 kg.

Allowed to issue a single document the quality of several batches of strips or bands of the same size, one state, one precision manufacturing, shipped to the same consumer, indicating the batch number.

5.2 Monitoring of surface quality and dimensions are subjected to every roll of ribbon or each strip.

5.3 To control the camber taken two rolls of tape or two strips from the party.

5.4 For the control deflection taken away two lanes from the party.

5.5 To control the mechanical properties, grain size and fracture are selected rolls of ribbons and bands depending on the batch weight in accordance with table 5.


Table 5

5.6 To monitor the chemical composition selected two rolls of tape or two strips from the party.

5.7 If unsatisfactory test results of at least one of the performance indicators specified in 5.3, 5.4, 5.5 and 5.6, it is carried out a re-test of the doubled sample taken from the same batch. The results of repeated testing are spreading to the entire party.

6 Methods of control and testing

6.1 Inspection the surface of the belts and bands is carried out visually without the use of magnifying devices.

6.2 the thickness of the ribbon and strip are measured with a micrometer according to GOST 6507 with lever or micrometer according to GOST 4381.

The thickness of the tape or strip is measured at a distance of not less than 100 mm from the end and not less than 10 mm from the edge with a width of more than 20 mm For strips and strip width of 20 mm or less, the measurement is performed in the middle.

Measuring the thickness of the tape or strip is carried out at three sites: at both ends and in the middle of three measurements in each plot at a distance of 0.5 m from one another. Final result for the test taking the arithmetic mean at each site.

6.3 the Width and length of strips and bands are measured by Vernier caliper according to GOST 166, measuring with a metal ruler according to GOST 427 or metal measuring tape according to GOST 7502.

The width measurement is carried out in a single place at a minimum distance of 100 mm from the end of the tape or strip.

6.4 the Camber of the strip or band is measured according to GOST 26877 in one place on any area of the roll or strip.

6.5 Deflection is measured according to GOST 26877 in one place at one metre length of the strip.

6.6 For the tensile test from each selected roll of tape or strip cut selected one sample. Sampling is carried out according to GOST 24047.

Tensile tests carried out according to GOST 11701 on flat samples of type I or type II: for strips of thickness less than 0.50 mm and 12.5 mm, for strips with thickness of 0,50 mm and strips with thickness of 3.0 mm and less than and 20 mm.

Tensile tests strips of a thickness more than 3.0 mm is carried out according to GOST 1497 on samples of type I or type II and 20 mm.

Tensile tests strips of a width of less than 20 mm is carried out on samples having a width equal to the width of the tape, with the edges of samples can be processed mechanically.

6.7 testing the fracture selected from each strip cut one sample. For testing fracture the specimen cut to the width of the strip to a depth of 1/3 the thickness, then clamp in a Vice and evenly without kinking bend in either direction until fracture.

6.8 To determine the amount of grain from each selected roll of tape or strip cut selected one sample. Determination of the grain is carried out at the customer’s request according to GOST 21073.1.

6.9 To determine the chemical composition of each selected roll of tape or strip cut selected one sample. The selection and preparation of samples for chemical analysis is carried out according to GOST 24231.

Chemical composition analysis is carried out according to GOST 1652.1 — GOST 1652.13. General requirements for methods of analysis should correspond to GOST 25086.

Allowed to the manufacturer of the sampling carried out by the molten metal.

Allowed to carry out chemical analysis by other methods of equal precision specified.

If there is disagreement in the assessment of the chemical composition analysis is carried out according to GOST 1652.1 — GOST 1652.13.

6.10 Crimp edge diffraction test tape or strips of a thickness up to 2.0 mm inclusive, around a mandrel of diameter 100 to 120 mm. If the ripple does not disappear, the roll of tape or band reject.

6.11 allowed the manufacturer to use other methods of control and measurement tools, providing the necessary accuracy.

If there is disagreement in the definition of indicators monitoring is carried out by methods specified in this standard.

6.12 the results of the measurements are rounded according to the rules of rounding established ST SEV 543.

7 Marking, packaging, transportation and storage

7.1 Tape must be rolled in coils with an internal diameter of 350−400 mm.

Allowed strip thickness and 0.70 mm inclusively wound in coils with an internal diameter of not less than 60 mm.

The winding should avoid changing the shape of the coil under the action of gravity.

7.2 Coils of strips with thickness 0.80 mm and less wrapped in paper or in synthetic or non-woven material that protect the outer surface of the roll from contamination, and Packed in tight wooden boxes. The coils are laid dry wood chips and protects the tape from damage, or other equivalent material.

Coils of strips with thickness of more than 0.80 mm is associated with a tape of size not less than 0,2x15 mm or a wire with a diameter of not less than 1 mm and are wrapped in synthetic or nonwoven material, ensure quality safety tape.

Stripe tie in bundles. Packs should be wrapped in paper or in synthetic or nonwoven material and protected on the top and bottom wooden crates whose dimensions correspond to the width and length of the bundles, and tied in at least two locations in the transverse and longitudinal directions of the steel or synthetic band with a size of 0,3x20 mm or a wire with a diameter of at least 2 mm. Binding: wire — stranding at least three turns of tape to the castle.

Weight of cargo must not exceed 80 kg.

7.3 it is allowed to transport rolls of tape and bundles of strips, wrapped in paper or cloth containers according to GOST 15102, GOST 18477 and GOST and GOST 20435 22225 without packing in boxes or crates. During transportation in containers, rolls of tape and bundles of strips should be laid and fastened in such a way as to exclude the possibility of their movement within the container. In addition, rolls of tape and bundles of strips should be protected from corrosion, contamination and mechanical damage.

7.4 each roll of tape and a pack of strips should be attached a label showing:

— trademark or name and trademark of manufacturer;

— the name of the country of manufacturer;

— the legend of ribbons and strips;

— batch number;

— stamp of technical control.

7.5 Consolidation packages in overpacks carried out in accordance with the requirements of GOST 26663. Means bonding in the transport packets according to GOST 21650.

Packaging is carried out on pallets or without pallets with the use of bars with a height of not less than 50 mm with strapping in the longitudinal and transverse directions with wire of diameter not less than 2 mm or tape of size not less than 0,3x20. Binding: wire — stranding at least five turns of tape to the castle.

Weight of cargo must not exceed 2000 kg. Weight of cargo space in covered wagons should not exceed 1250 kg.

7.6 as packaging AIDS and materials and means of bonding shall apply:

paper according to GOST 8273;

— wooden boxes of types I, II and III according to GOST and GOST 2991 10198; dimensions of boxes — GOST 21140 or technical documents;

— pallets according to GOST 9557 and GOST 9078;

— crates for technical documents;

— synthetic and nonwovens for technical documents;

tape according to GOST 3560;

— wire according to GOST 3282;

— synthetic tape on the technical documents.

It is possible to use other types of packaging materials not inferior in strength of the above, and other types and methods of packing, providing safety of quality of strips and bands.

7.7 In each box or container must be attached to the packing slip, containing:

is the trademark or name and trademark of manufacturer;

— the name of the country of the manufacturer;

— the symbol of the ribbon and strip;

— the batch number;

— the net weight;

— gross mass;

— the number of the packer.

7.8 Transport marking under GOST 14192 with the application of manipulation sign «Protect from moisture».

7.9 Packaging tapes and stripes, intended for dispatch to the far North regions and equated areas according to GOST 15846 in the group «Metals and metal products."

7.10 Tape transporterowych all types of transport in covered vehicles in accordance with transportation rules and conditions of loading and fastening of goods, operating on transport of the species.

7.11 Rolls of tape and bundles of strips should be stored indoors on racks or shelves. When storing or transporting the tape must be protected from mechanical damage, moisture and active chemical substances.

Consumer tape and strips should be kept in stock in the manufacturer’s packaging for at least two days to equalize their temperatures with the room temperature. At the expiration of the tape needs to be unpacked.

7.12 Under specified storage conditions consumer properties of strips and bands are not changed.


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UDC 669.35'5−418:006.354 ISS 77.150.30

Key words: lead, brass, strips, lead, brass, band, assortment, technical requirements, control
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