ELECTRIC WELDED STEEL PIPES

Price 9 kop.

Official edition

STATE COMMITTEE OF STANDARDS OF THE COUNCIL OF MINISTERS OF THE USSR

STATE STANDARDS OF THE UNION OF THE SSR

ELECTRIC WELDED STEEL PIPES

Official edition

MOSCOW -1975

© Standards Publishing, 1975

STATE STANDARD COIOU SSR

GOST

ELECTRIC WELDED STEEL PIPES

Assortment

electrically welded steel tubes. Range

10704-63 1 2

7. The difference in wall thickness of pipes should not exceed the tolerances specified in clause 5.

8. The ovality of pipes up to 402 mm in diameter, as well as calibrated pipe ends, must be within the tolerances for the diameters indicated in Table. 2 and 3.

The ovality of pipes with a diameter of 426 mm or more with non-calibrated ends, as well as along the body of pipes with calibrated ends, should not exceed ± 2.10 (0.005 D, + 2 mm).

Permissible ovality of pipes with a wall thickness of less than 0.01 D n is established by agreement of the parties.

9. Technical requirements for pipes are determined by GOST 10705-63 and GOST 10706-63.

10. The curvature of the pipes should not exceed 1.5 mm per 1 linear meter. m.

At the reasonable request of the consumer, the curvature of pipes with a diameter of up to 152 mm should be no more than 1 mm per 1 linear meter. m.

Examples of pipe symbols:

With an outer diameter of 25 mm, with a wall thickness of 2 mm, a multiple of 2000 mm long, made of VStZop grade steel, they are manufactured according to group B GOST 10705-63:

ru0 in St3sp GOST J0705_ 63

The same, if the deoxidation method is not specified in the order:

The same, 5000 m long (measured length), made of steel grade 20, are made according to group B GOST 10705-63:

t - 25 X 2 5000 GOST 10704-63

1 ruoa B 20 GOST J0705 __ 63

The same, they are made according to group D GOST 10705-63:

A pipe with an outer diameter of 1020 mm, with a wall 10 mm thick, random length, made of BstZsp grade steel, is manufactured according to GOST 10706-63 group B:

AT legend pipes with heat treatment and after the word "pipe" the letter "T" is added.

The designation of pipe manufacturing groups B, C coincides with the first letter in the designation of steel grades according to GOST 380-71.

(Changed edition - "Inform. index of standards" No. 1, 1974).

1.a* 1.41 1.47 1.92 1.61 1.00 1.79 1.91 2. C4 2.14 2.1" 2.72 2.31 2.M 2. M 2.74 3.02 3.1*

1.32 1.3* 1.41 1.56 1.60 1.21 I.M l.tt l.t* 2 91 200 2.13 2.31 2.44 2.70 2 "2 1.94

s?33E"e2sssss"e

1.022 1"; 1.144 1.2*

1.0*1 1.1" 1.1" I.IW 1.3* 1." 1.41 1.51 1.01 I.M 1.71 1.24 l.«3 1.92 2 02 2.14 2.37 2.47 2.32

1.33 1 42 1 90 1.S I.T2 1.29 1. M 1.90 1.94 2.03 2. » 2.;9 2.S3 2.64 2.7*

1.70 1.62 1.97 2.12

2.96 2.12 2.40 7.80 2.97 3.13 3.24 3.66

I.t2 I.M 1.94 7 00 4. » 4. S3 4.9*

3. M 3.74 3.94 4.20 4.0

2 37 2.44 2.” 2.74 2.00 2.11 3.33 3.4* 3.55 3.70 3.77 4.00 4.22 4.49 4.90 6.1"

3.70 3.79 3.94 4.07 4.25 4.49 4.27 6.I 5.62 5 75 6.31

4.01 4 10 4.27 4.30 4.67 4 M 5.18 5.74 * CO 6.” 0*5

". U I M I II.*»

M M M M 1 M M

Pro&olhlpi

I tsh 1" M *

: | sch 13.9S 15.06

I. Rm ";m tpr *. alg. "echt" yg ■ s "> 6" i. n*"s*"**" *rps*t"**!*" * . 2 T")44v. "Kga mtemi cr; a>" f "v.i" c * tg "and * m" . "" magician. 6gDU "un" imp * h * X.p * ycva aoMfv MWV 1 Gb * | "% 6 m GOST 10706 A" WFHimtiae chkga > * gl "o" * tch iu 1% m s * gt "" * " 4. According to "6Я1n" "GOfaOyat *." * mat wtfOJfrm 4> r<« ini ММП* И»** с дммггяамм ~

cr-"mtCT"*e< ГОСТ ЗН2-62 (1*4*. 7/

(Iamgigiijti edition - "Naform) ld" ate.1 olmdprtoyu.Ch I 1974).

From 1/1, 1976, instead of GOST 8597 - ^ 57, GOST 19903-74 is put into effect in terms of sheets with a width of 500 mm or more.

IPK PUBLISHING HOUSE OF STANDARDS STATE STANDARD OF THE UNION OF THE SSR

STEEL ELECTRIC-WELDED STRAIGHT-WELDED PIPES.

Assortment.

1. This standard specifies assortment of steel electric-welded longitudinal pipes.

2. The dimensions of the pipes must correspond to the table. one .

3. The length of the pipe is made: random length:

• with a diameter of up to 30 millimeters - not less than 2 m;
• with a diameter from 30 to 70 millimeters - at least 3 m;
• with a diameter of St. 70 to 152 millimeters - at least 4 m;
• with a diameter of St. 152 millimeters - at least 5 m.

At the request of the consumer, pipes of groups A and B according to GOST 10705 with a diameter of more than 152 millimeters are manufactured with a length of at least 10 m; pipes of all groups with a diameter of up to 70 millimeters - at least 4 m long;

• measured length:
• with a diameter of up to 70 millimeters - from 5 to 9 m;
• with a diameter of St. 70 to 219 millimeters - from 6 to 9 m;
• with a diameter of St. 219 to 426 millimeters - from 10 to 12 m.

Pipes with a diameter of more than 426 millimeters are made only in random lengths. By agreement between the manufacturer and the consumer, pipes with a diameter of more than 70 to 219 millimeters are allowed to be manufactured from 6 to 12 m; a multiple of the length, a multiple of not less than 250 millimeters and not exceeding the lower limit. set for measuring pipes. The allowance for each cut is set at 5 millimeters (if no other allowance is specified) and is included in each multiplicity. To calculate the weight of the pipe, or the length of the pipe, you can use the pipe calculator.

Table 1

Continuation of the table. one

Outside diameter. millimeters	Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters	Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters	Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters

Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters	Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters	Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Continuation of the table. one

Outside diameter. millimeters

Theoretical weight of 1 m of pipes. kg. at wall thickness. millimeters

Notes:

1. In the manufacture of pipes in accordance with GOST 10706, the theoretical mass increases by 1% due to the strengthening of the seam.

2. By agreement between the manufacturer and the consumer, pipes are manufactured with dimensions of 41.5 ґ1.5-3.0; 43 ґ1.0; 1.53.0; 43.5 ґ1.5-3.0; 52 ґ2.5; 69.6 ґ1.8; 111.8 ґ2.3; 146.1 ґ5.3; 6.5; 7.0; 7.7; 8.5; 9.5; 10.7; 152.4 ґ1.9; 2.65; 168 ґ2.65; 177.3 ґ1.9; 198 ґ2.8; 203 ґ2.65; 299 ґ4.0; 530 ґ7.5; 720 ґ7.5; 820 ґ8.5; 1020 ґ9.5; 15.5; 1220 ґ13.5; 14.6; 15.2 millimeters. and also with an intermediate wall thickness and diameters within the limits of Table. one.

3. Pipe dimensions are not recommended for new design.

3.1. Pipes of measured and multiple lengths are manufactured in two accuracy classes in length:

• I - with cutting ends and deburring;
• II - without chamfering and deburring (with cutting in the mill line).

3.2. Limit deviations along the length of measuring pipes are given in table. 2.

table 2

3.3. Limit deviations along the total length of multiple pipes should not exceed:

• + 15 millimeters - for pipes of the I class of accuracy;
• + 100 millimeters - for pipes of II class of accuracy.

3.4. At the request of the consumer, pipes of measured and multiple lengths of accuracy class II must be with chamfered ends and on one or both sides.

4. Limit deviations for the outer diameter of the pipe are given in table. 3.

Table 3

Note. For diameters. controlled by perimeter measurement. the largest and smallest limit values ​​of the perimeters are rounded to the nearest 1 millimeter.

5. At the request of the consumer, pipes according to GOST 10705 are manufactured with a one-sided or offset tolerance on the outer diameter. One-sided or shifted tolerance should not exceed the sum of the limit deviations. given in table. 3.

6. Limit deviations in wall thickness must correspond to:

± 10% - with pipe diameters up to 152 millimeters;

GOST 19903 - with a pipe diameter of more than 152 millimeters for the maximum sheet width of normal accuracy.

By agreement between the consumer and the manufacturer, it is allowed to manufacture pipes with a one-sided tolerance for wall thickness. in this case, the one-sided tolerance should not exceed su sums of limit deviations along the wall thickness.

7. For pipes with a diameter of more than 76 millimeters, a wall thickening at the burr by 0.15 millimeters is allowed.

8. Pipes for pipelines with a diameter of 478 millimeters or more. manufactured in accordance with GOST 10706. are supplied with maximum deviations in the outer diameter of the ends. given in table. four.

Table 4

9. Ovality and equivalence of pipes with a diameter of up to 530 millimeters inclusive. manufactured in accordance with GOST 10705. should be no more than the maximum deviations, respectively, in the outer diameter and wall thickness.

Pipes with a diameter of 478 millimeters or more. manufactured in accordance with GOST 10706. must be of three accuracy classes in terms of ovality. The ovality of the pipe ends must not exceed:

• 1% of the outer diameter of pipes for the 1st accuracy class;
• 1.5% of the outer diameter of the pipes for the 2nd accuracy class;
• 2% of the outer diameter of the pipes for the 3rd accuracy class.

The ovality of the ends of pipes with a wall thickness of less than 0.0 1 of the outer diameter is established by agreement between the manufacturer and the consumer.

10. Pipe curvature. manufactured in accordance with GOST 10705. should not exceed 1.5 millimeters per 1 m of length. At the request of the consumer, the curvature of pipes with a diameter of up to 152 millimeters should be no more than 1 millimeter per 1 m of length.

General curvature of pipes. manufactured in accordance with GOST 10706. should not exceed 0.2% of the pipe length. The curvature per 1 m of the length of such pipes is not determined.

11. Technical requirements must comply with GOST 10705 and GOST 10706.

Examples of symbols:

Pipe with an outer diameter of 76 millimeters. wall thickness of 3 mm. measured length. II class of accuracy in length. from steel grade St3sp. manufactured according to group B GOST 10705-80:

Note. In the conventions of pipes. heat treated throughout. after the words "pipe" the letter T is added; pipes. passed local heat treatment of the weld. - L is added.

INFORMATION DATA

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

DEVELOPERS

V. P. Sokurenko. cand. tech. sciences; V. M. Vorona. cand. tech. Sciences; P. N. Ivshin. cand. tech. Sciences; N. F. Kuzenko. V. F. Ganzina