GOST 8560-78

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  ГОСТ 8560-78

GOST 8560−78 calibrated hexahedronal rolled-stock. Assortment (with Amendments No. 1, 2)

GOST 8560−78
Group В32

INTERSTATE STANDARD

CALIBRATED HEXAHEDRONAL ROLLED-STOCK

Assortment

Calibrated hexahedronal rolled-stock. Dimensions

ISS 77.140.50
GST 11 4000

Date of introduction 1979−07−01

Resolution of the USSR State Committee on standards of 2 August 1978, N 2079 date of introduction is established 01.07.79

Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (ICS 11−95)

REPLACE GOST 8560−67

EDITION (October 2012) with Changes No. 1, 2 approved in April 1983, December 1988 (ICS 7 to 83, 3−89).

1. This standard applies to the rental calibrated hex sizes from 3 mm to 100 mm.

The size of the cross section of rolled and limit deviations according to him, damn it.1 and table.1

2. The size of the cross section of rolled and limit deviations thereon shall be as specified in the hell.1 and in table.1.

Damn.1

Table 1

Notes:

1. At the request of the consumer calibrated hexahedronal rolled-stock produce other sizes not listed in table.1. Maximum deviations in this case should conform to the standards established for the nearest larger diameter.

2. The cross-sectional area and linear density of rolled steel gauged hexagon is calculated based on nominal size. The density of rentals estimated to be equal to 7.85 g/cm.

3. For rental of high-alloy steels and alloys subjected to heat treatment and etching, tolerances for size are set at 30% more of tolerance h12.


(Changed edition, Rev. N 1, 2).

3. Calibrated hexahedronal rolled-stock is made in bars. At the request of the consumer rental is made in reels.

4. Depending on purpose bars are made:

— the measured length;

— multiple of gauging length;

— random length with the residue up to 10% of the batch weight;

— limited length within off-gage.

The rest are bars with a length of not less than 1.5 m.

5. The bars are manufactured with the length from 2 to 6.5 m. On customer’s request bars are made of large lengths.

3−5. (Changed edition, Rev. N 1).

6, 7. (Deleted, Rev. N 1).

8. Maximum deviations along the length of the bars in fixed lengths and multiple lengths shall not exceed:

30 mm — length of bars up to 4 m;

+50 mm at length of over 4 meters bars

The curvature of bars, table.2, hell.2

9. The curvature of bars should not exceed the values given in table.2.

Table 2

Deviation from straightness should be uniform throughout its length. At the ends of short longitudinal bars in the bends are not permitted.

10. Torsion of rods of 1 m length (DWG.2) should not exceed 3°.

Damn.2

11. Cut the rod must be at right angles to its longitudinal axis. Allowable cut end Squareness, mm should not exceed:

0,17  — size bars up to 16 mm;

3 mm — in the bars size over 16 mm to 30 mm;

5 mm when the bars more than 30 mm.

9−11. (Changed edition, Rev. N 1).

Length folded bar end, table.3

12. The length of the folded ends of bars should not exceed the limits specified in table.3.

Table 3

(Added, Rev. N 1).

The radius of curvature of the edges of the table.4

13. The radius of curvature of the edges is determined by the demand of the consumer and must not exceed the values given in table.4.

Table 4

(Changed edition, Rev. N 1, 2).