GOST 8787-68
GOST 8787−68 Steel cystotomy for dowels. Assortment (with Amendments No. 1, 2, 3)
GOST 8787−68
Group B22
INTERSTATE STANDARD
CYSTADENOMA STEEL FOR DOWELS
Assortment
Cold-drawn steel for rectangular parallel keys. Dimensions
ISS 77.140.50
Date of introduction 1971−07−01
Resolution of the Committee of standards, measures and measuring instruments under the USSR Council of Ministers on 22 August 1968 date of introduction is established 01.07.71
The expiration time limit is removed by the Resolution of Gosstandart from
REPLACE GOST 8787−58
EDITION (October 2012) with Changes No. 1, 2, 3, approved in November 1971, March 1980, March 1984 (IUS 12−71, 5−80, 7−84).
1. Section sizes cystadenomas steel for dowels shall be as specified in the drawing and in the table.
Dimensions, mm
Nominal size cross-sections |
or |
Theoretical weight of 1 m of wire, kg | |
2 | 2 | 0,16−0,25 |
0,03 |
3 |
3 |
0,07 | |
4 |
4 |
0,13 | |
5 |
5 |
0,25−0,40 |
0,20 |
6 |
6 |
0,29 | |
7 |
7 |
0,38 | |
8 |
0,44 | ||
24 |
14 |
0,60−0,80 |
2,63 |
10 |
8 |
0,40−0,60 |
0,63 |
12 |
8 |
0,75 | |
14 |
9 |
0,99 | |
16 |
10 |
1,26 | |
18 |
11 |
1.55 V | |
20 | 12 |
0,60−0,80 | Of 1.88 |
22 |
14 |
2,42 | |
25 | 14 | Of 2.74 | |
28 | 16 | 3,52 | |
32 | 18 | 1,00−1,20 | Of 4.52 |
36 |
20 |
5,65 | |
40 |
22 |
Of 6.91 | |
45 | 25 | 8,79 | |
50 | 28 | 10,99 | |
56 | 32 | 1,60−2,00 | 14,06 |
63 |
32 |
15,82 | |
70 | 36 | Of 19.78 | |
80 | 40 | 2,50−3,00 | To 25.12 |
90 |
45 |
31,79 | |
100 | 50 | 39,25 |
Example of designation steel cystotomy for dowels sizes mm, mm:
18х11 steel keyed GOST 8787−68
(Changed edition, Rev. N 1, 2).
2. Material — steel with tensile not less than 60 kgf/mm.
3. Limit deviations of the dimensions of the section are:
— the width of the via ;
— height (for dimensions from 2 to 6 mm around ).
(Changed edition, Rev. N 2, 3).
The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
Steel sheet products.
Assortment: Sat. Standards. -
M.: STANDARTINFORM, 2012