GOST 103-76

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  ГОСТ 103-76

GOST 103−2006 bars, steel, hot-rolled strip. Assortment

GOST 103−2006
Band Q23

INTERSTATE STANDARD

BARS, STEEL, HOT-ROLLED STRIP

Assortment

Hot-rolled steel strips. Dimensions

ISS 77.140.60

Date of introduction 2009−07−01

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 1.2−97* «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. The procedure of development, adoption, application, renewal and cancellation"
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* Valid GOST 1.2−2009.

Data on standard

1 DEVELOPED by the research Institute «Ukrniimet» Ukrainian state scientific and technical center «Energostal»; the Interstate technical Committee for standardization MTK 327 «bars, shapes and sections"

2 SUBMITTED to the State Committee of Ukraine for technical regulation and consumer policy

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes No. 30 dated December 7, 2006)

The standard was accepted by voting:

4 this standard conforms to regional standard EN 10058:2003* «hot Rolled flat steel bars for General purposes. Dimensions and tolerances for shape and size» (EN 10058:2003 «Hot rolled flat steel bars for general purposes — Dimensions and tolerances on shape and dimensions») in terms of requirements to the assortment.
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* Access to international and foreign documents referred to here and hereinafter, can be obtained by clicking on the link to the site shop.cntd.ru. — Note the manufacturer’s database.

The degree of compliance — non-equivalent (NEQ)

5 by Order of the Federal Agency for technical regulation and Metrology dated December 18, 2008 N 445-St inter-state standard GOST 103−2006 introduced as a national standard of the Russian Federation from July 1, 2009

6 REPLACE GOST 103−76

7 REISSUE. October 2012


Information about introduction in action (termination) of this standard is published in the index «National standards».

Information about the amendments to this standard is published in the index «National standards», and the text changes — in the information sign «National standards». In case of revision or cancellation of this standard the appropriate information will be published in the information index «National standards»

1 Scope

This standard applies to hot-rolled steel strip rental (hereafter rental) General-purpose steel band hire for nuts with a thickness of 4 to 80 mm inclusive and a width of from 10 to 200 mm inclusive.

2 Classification. Basic parameters and dimensions

2.1 rentals are divided as follows:

— by appointment:

overall — IT;

for hot forging of nuts — GSHG;

for cold forming of nuts HSG;

— accuracy rolling:

thickness:

high — БТ1, BT2, БТ3;

normal — VT1, ВТ2, VT3;

width:

high — БШ1, БШ2, БШ3;

normal — ВШ1, ВШ2, ВШ3;

length:

dimensional — MD;

measuring with non-standard length — MD1;

dimensional — CD;

dimensional with random length — КД1;

random — ND;

limited within the random — OD;

limited from the random length — EA1;

rolls — RD;
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In the supply of rental with dimensional random length (MD1) dimensional with random length (КД1) and bounded by random length (EA1) is allowed rental of random length not more than 5% of the batch weight.

— limit deviations for the length of rental and multiple dimensional measuring length groups, DB and VD;

— the blunting of the angles in BU and WU;

— the requirement to camber:

high — as;

high — BS;

ordinary — sun;

— flatness:

particularly high — AT;

high — PV;

normal — MON.

2.2 the cross-sectional Shape, thickness, width and weight of 1 m of length of hire shall be as specified in figure 1 and in table 1.

Figure 1

Table 1

End of table 1

2.3 At the request of the consumer (the agreed specifications) hire produce:

thickness 4 and 5 mm all widths;

thickness up to 36 mm inclusive and a width of 56 mm;

size xmm:

8x17; 12x27; 13x22; 13x25; 15x25; 17x25; 17x28; 17x30; 19x25; 19x28; 19x34; 23x27; 23х36; 24х32; 24х39; 24х55; 26х36; 26х44; 27х34; 28х17; 32х39; 34х24; 34х39.

2.4 tolerances for the thickness of the hire for General purpose and hot forging nuts must not exceed the values given in table 2.


Table 2

In millimeters

2.4.1 hire with precision rolling ВТ2 (table 2) allowed to produce with plus the marginal variance equal to the sum of limit deviations for thickness (VT3).

2.4.2 At the request of the consumer (the agreed specifications) products with thickness more than 16 mm to 20 mm inclusive manufactured with extreme deviations in thickness ±0.30 mm (БТ3).

2.5 tolerances for the width of the rolled General purpose and for hot forging of nuts should not exceed the values given in table 3.


Table 3

In millimeters

2.5.1. Hire with precision rolling ВШ2 (table 3) allowed to produce with plus the marginal variance equal to the sum of limit deviations on width (ВШ3).

2.5.2. At the request of the consumer (the agreed specifications) hire of width from 12 to 40 mm inclusive manufactured with extreme deviation width ±0.50 mm (БШ3).

2.6 tolerances for the thickness and width of rolled products for cold forming of nuts should not exceed the values given in table 4.


Table 4

In millimeters

2.7 Convexity or concavity of the side faces of the hire shall not exceed extreme deviations in width.

2.8 hire produce long:

— from 2 to 12 m inclusive — from commercial quality carbon steel, low alloy and phosphorous;

— from 2 to 6 m, inclusive — from quality carbon steel and alloy steel.

By agreement between manufacturer and consumer (the agreed specifications) hire produce off-gage length within the limits from 3 to 13 m, inclusive, with 10% of bars from the batch weight can have a lesser length but not less than 75% of the minimum length.

2.9 maximum deviations made on the length of hire exact or multiple lengths shall not exceed the values given in table 5.


Table 5

2.10 By agreement between manufacturer and consumer (the agreed specifications) hire manufactured in rolls.

2.11 Blunting of corners for rental of the group WU should not exceed 0.2 thickness, but not more than 3 mm.

By agreement between manufacturer and consumer (the agreed specifications) blunting of the corners to hire a BU group of thickness greater than 4 mm should not exceed the values given in table 6.


Table 6

In millimeters

2.12 Camber of hire should not exceed the values given in table 7.


Table 7

2.13 Deviation from flatness of rolled of thickness greater than 12 mm shall not exceed the values specified in table 8.


Table 8

In millimeters

The deviation from flatness of products with thickness up to 12 mm inclusive not normalized and not in control.

2.14 the cross-sectional Shape is determined in two ways: by the difference of the diagonals or deviation from the right angle. Method of control selects the manufacturer and specifies in the instrument of quality.

2.14.1 the Difference of the diagonals in one cross section shall not exceed twice the amount of the limit deviations on width of rolled to 20 mm inclusive more than 20 mm — the sum of limit deviations on width of rolled.

2.14.2 the deviation from the straight angle (figure 2) for products with thickness from 40 to 80 mm inclusive and a width of from 10 to 200 mm inclusive shall not exceed the values given in table 9.

Figure 2

Table 9

In millimeters

2.15 Dimensions, blunting of corners and camber of the rolled measured at a distance of not less than 100 mm from the end and rolled in coils, in any location except the first and last turns.

2.15.1 By agreement between manufacturer and consumer (the agreed specifications) dimensions, blunting of corners and camber of the rolled measured at a distance of not less than 150 mm from the end.

2.15.2 the Length is measured on the largest face of the rental.

2.15.3 the Camber measured on the manufactured length of the rental, but not less than 1 m.

2.15.4. the Deviation from flatness of the rolled measured on a plot length of 1 m at a distance of not less than 1 m from the end.

The deviation from flatness of rolled in coils not check.