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GOST-2590-1988-ENG.pdf

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USSR STATE STANDARD

ROUND STEEL BARS

RANGE OF SIZES

GOST 2590-88

(CMEA Standard 38-82)

Official Edition

USSR STATE COMMITTEE FOR STANDARDS

Moscow

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UDC 669.14-122:006.354

Group B22

USSR STATE STANDARD

ROUND STEEL BARS

GOST2590-88

Range of sizes

(CMEA Standard 38-82)

OKP(All-Union Product Classification Code) 093100; 093200; 093300

Term

from 01.01.90to 01.01.95Failure to comply with this Standard will result in legal proceedings

1. This Standard applies to steel bars with round cross-sections and diameters of 5 to270 mm inclusive.

Round bars with diameters of more than 270 mm shall be manufactured by agreementbetween the manufacturer and the customer.

2. Round bars shall be manufactured in accordance with the following degrees ofaccuracy:

A – extra accuracy;B – high accuracy;C – ordinary accuracy.

3. The diameter of round bars, themaximum deviations for it, the cross-sectional area andweight of a 1 m length shall correspond to those specified in the figure and in table 1.

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p. 2 GOST 2590-88

Table 1

Maximum deviations, mm,with the following rolling accuracy:Diameterd,

Cross-sectional

Weight of 1 m

area,A

cm250.19635.50.237660.28276.3+0.10.31176.5-0.2

0.331870.384880.502790.636210+0.1+0.30.785411-0.5

-0.5

0.9503121.131131.32714+0.11.53915-0.3

1.767162.011172.270182.545192.836203.142213.422+0.1+0.2+0.43.80123-0.4-0.5-0.5

4.155244.524254.90926+0.15.30727-0.4

28+0.35.72629-0.7

6.1586.605307.069317.548328.042338.533349.079359.6213637+0.210.1838+0.1-0.7

10.7539-0.5

11.34+0.411.9540-0.7

12.574113.204213.854314.524415.204515.904616.624717.3548

18.10Copyright Gosudarstvennye Standarty State Standard GOST (Russian) Provided by IHS under license with GOST p

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of bar,kg

0.1540.1860.2220.2450.2600.3020.3950.4990.6160.7460.8881.041.211.391.581.782.002.232.472.722.982.263.553.854.174.504.835.185.555.926.316.717.137.557.998.448.909.3.8610.3610.8811.4011.9412.4813.0513.7514.20

GOST 2590-88 p. 3

Table 1 (cont.)

Maximum deviations, mm,with the following rolling accuracy:Diameterd,

Cross-sectional

Weight of 1 m

area,A

cm25019.5221.245354+0.1+0.2+0.422.0655-0.7-1.0-0.1

22.4823.765624.635826.426028.276230.196331.176533.1867+0.1+0.3+0.535.2668-0.9-1.1-1.1

36.327038.487240.727544.187847.788050.278252.818556.7487+0.3+0.3+0.559.4290-1.1-1.3-1.3

63.629266.449570.8773.8610078.54105+0.686.59110–

+0.4–1.7–1.7

95.03115103.87120113.10125122.72130132.73135140–

+0.6+0.8143.14–2.0–2.0

153.94145165.10150176.72155188.60160201.06165213.72170226.98175240.41180––

+0.9185–1.5

254.47268.67190283.53195298.50200

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of bar,kg

15.4216.6717.3217.6518.6519.3320.7422.1923.7024.4726.0527.6828.5130.2131.9634.6837.5139.41.44.5446.49.9452.1655.57.9861.6567.9774.6081.5488.76.33104.20112.36120.84129.60138.72148.05157.83167.77178.18188.72199.76210.91222.57234.32246.62

p. 4 GOST 2590-88

Table 1 (cont.)

Maximum deviations, mm,with the following rolling accuracy:A

210220230240250260270

Diameter d,

Cross-sectional

area,cm2Weight of 1 m

of bar,kg

––

+1.2-3.0+2.0-4.0

––

346.36380.13415.48452.39490.88530.66572.26271.298.40326.15355.13385.34416.57449.22

Notes:

1. Cross-sectional area and weight of a 1m length of a bar shall be calculated according to the stipulateddimensions. Steel density is equal to 7.85 g/cm3 for calculating the weight of 1 m of round bars. The weight of1 m of round bars is a reference value.

2. The maximum deviations of a diameter of no more than ±0.5 mm shall be allowed until 01.01.92 forround bars with a diameter up to 9 mm inclusive, manufactured in bundles on mills not equipped with finishingblocks.

3. The maximum deviations for the diameter of round bars, intended for the manufacture of calibratedround bars, shall be symmetric, but shall not exceed the established tolerance ranges.

4. Bars with diameters over 100 mm shall be manufactured of intermediate dimensions with maximumdeviations of the nearest smaller dimension by agreement between the manufacturer and the customer.

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4. At the customer's request, round bars shall be manufactured with the deviations with a +sign, specified in table 2

Table 2

Diameter

FromOver\"\"\"

5to9 inclusive9\"19\"19\"25\"25\"31\"31

Maximum deviation, not over

+0.5+0.6+0.8+0.9

The sums of maximum deviations for round bars ofregular rolling accuracy according to table 1.

5. Ovality of round bars shall not exceed 50 % of the sum of maximum deviations of thediameter.

Ovality, not exceeding 60 % of the sum of maximum deviations of the diameter, shall beallowed for tool alloyed and high-speed round bars.

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GOST 2590-88 p. 5

6. Round bars with diameters of up to 9 mm shall be manufactured in bundles and also inrods for round bars with diameters of over 9 mm.

Round bars with diameters of over 9 mm shall be manufactured in bundles and also inrods for round bars with diameters of less than 9 mm by agreement between the manufacturerand the customer.

7. Round bars shall be manufactured of the following lengths according to the Order:

standard length;

multiple of standard length;non-standard length.

8. Round bars shall be manufactured with the following lengths:from 2 to 12 m for ordinary quality carbon and low-alloy steel;from 2 to 6 m for quality carbon and alloy steel;from 1.5 to 6 m for heat-resistant steel.

9. Round bars shall be manufactured with lengths of 2 to 24 m at the customer's request.10. Maximum deviations of the length of a round bar with standard or multiple ofstandard lengths shall not exceed the following values:

+30 mm for a length of up to 4 m inclusive+50 mm for a length of 4 m to 6 m inclusive;+70 mm for a length over 6 m.

Maximum deviations shall not exceed the following values at the customer's request:+40 mm for round bars with a length of 4 to 7 m;

+5 mm on each meter of length for round bars with a length of over 7 m.11. Curvature of round bars shall not exceed the values specified in table 3.

Table 3

Curvature

Circle diameter

I class

Up to 25 inclusiveOver 25

0.5 % of length0.4 % of length

II class–

0.5 % of length

12. Curvature of round bars shall not exceed 0.2 % of a length at the customer's request.13. Curvature of round bars shall be measured on a length of no less than 1 m and at adistance of no less than 150 mm from the ends.

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p. 6 GOST 2590-88

14. The diameter and ovality of round bars shall be measured at a distance of no less than150 mm from the end of a bar and no less than 1.5 m from the end of a bundle with its weightup to 250 kg and at a distance of no less than 3.0 m with a weight of a bundle more than250 kg.

DETAILS

1.DEVELOPED AND INTRODUCED by the USSR State Committee for StandardsDEVELOPERS

K. F. 3HUHW\\DW*Nh/#.1#,1#6QLPFKLNRYZ#(Project Head); S. I. Rudyuk, Cand. Sci. (Tech.);V. F. DhYDOHQNh/#Cand..Sci. (Tech); Kh. M. Saprykin, Cand. Sci. (Tech.); V. A. ?QZ,Cand. Sci. (Tech.); E. I. Bulgakov; Zh. M. 5h_YZ, &ZQG. Sci. (Econ.); V. I. DUDVQRYZ;I. E. Patseka, Cand. Sci .(Tech.)

3.APPROVED AND PUT INTO EFFECT by Decree No. 2519, dated 29.06.88, of theUSSR State Committee for Standards3.This Standard fully complies with CMEA Standard 38-824.In the place of GOST 2590-71

Editor N. V. Bobkova

Technical Editor V. N. MalkovaProof-reader V. I. Varentsova

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