GOST 1133-71
GOST 1133−71 forged round Steel and square. Assortment
GOST 1133−71
Group B22
INTERSTATE STANDARD
STEEL FORGED ROUND AND SQUARE
Assortment
Forged round and square steel. Dimensions
ISS 77.140.50
Date of introduction 1973−01−01
The decision of the State Committee of standards of Ministerial Council of the USSR of June 4, 1971 N 1081 date of introduction is established 01.01.73
REPLACE GOST 1133−41 part of the instrumental range of forged round and square steel and GOST 5650−51 in terms of high speed tool assortment forged round and square steel
REPRINTING. October 2012
1. This standard applies to forged steel round and square from 40 to 200 mm inclusive.
2. The size of the section steel and limit deviations thereon shall be as specified in the drawing and in the table.
| Diameter or square side, mm | Limit deviation, mm | The cross-sectional area, cm |
Weight 1 m, kg | The cross-sectional area, cm |
Weight 1 m, kg |
| steel round |
steel square | ||||
| 40 |
+2,0 |
12,57 | 9,86 | 16,00 | 12,56 |
| 42 | 13,85 | Of 10.88 | 17,64 | 13,85 | |
| 45 | 15,90 |
12,48 | 20,25 | 15,90 | |
| 48 | 18,10 |
14,20 | 23,04 | 18,09 | |
| 50 |
19,64 | For 15.42 | 25,00 | Of 19.62 | |
| 52 |
+2,5 | 21,24 |
16,67 | Of 27.04 | 21,23 |
| 55 |
From 23.76 | 18,65 | 30,25 | 23,75 | |
| 58 |
26,42 | Of 20.74 | Of 33.64 | Of 26.41 | |
| 60 |
Of 28.27 | 22,19 | 36,00 | 28,26 | |
| 63 |
31,17 | Of 24.47 | 39,69 | 31,16 | |
| 65 | 33,18 | At 26, 05 | 42.25 mln | 33,17 | |
| 68 | 36,32 | Of 28.51 | Of 46.24 | 36,30 | |
| 70 | 38,48 | Of 30.21 | 49,00 | 38,46 | |
| 73 | 3.0 a |
Of 41.85 | Accounting period 32.85 | And 53.29 |
41,83 |
| 75 | 44,18 | For 34.68 | 56,25 | Of 44.16 | |
| 78 | 47,78 |
Of 37.51 | 60,84 | From 47.76 | |
| 80 | 50,27 |
39,46 | 64,00 | 50,24 | |
| 83 | 54,11 | 42,48 | 68,89 | 54,08 | |
| 85 |
56,74 | Of 44.54 | 72,25 | 56,72 | |
| 90 | +3,5 |
Of 63.62 | 49,94 | Of 81.00 | 63,58 |
| 95 | 70,88 |
Of 55.64 | 90,25 | 70,85 | |
| 100 | 78,54 | 61,65 | 100,00 |
78,50 | |
| 105 |
86,59 | 67,97 | 110,25 | 86,55 | |
| 110 | +4,0 | 95,03 |
74,60 | 121,00 | 94,98 |
| 115 | 103,87 |
81,54 | 132,25 | 103,82 | |
| 120 |
+4,5 |
113,10 | 88,78 | 144,00 | 113,04 |
| 125 |
122,72 | 96,33 | 156,25 | 122,66 | |
| 130 | 132,73 | 104,20 |
Of 169.00 | 132,66 | |
| 135 |
143,14 | 112,36 | 182,25 | Of 143.07 | |
| 140 | 153,94 | 120,84 | Of 196.00 | 153,86 | |
| 145 |
165,13 | 129,25 | 210,25 | 165,05 | |
| 150 |
+5,0 | 176,72 | 138,72 | Of 225.00 | 176,62 |
| 155 |
+6,0 | 188,69 | 148,10 | 240,25 | 188,60 |
| 160 | 201,06 | 157,83 |
256,00 | 200,96 | |
| 165 | 213,82 | 167,85 |
272,25 | 213,72 | |
| 170 | +7,0 |
226,98 | 178,18 | 289,00 | 226,86 |
| 175 |
240,53 | 188,80 | 306,25 | 240,41 | |
| 180 | 254,47 |
199,76 | Of 324.00 | 254,34 | |
| 185 |
+8,0 | 268,80 | 211,01 | 342,25 | 268,67 |
| 190 |
283,53 | 222,57 | Of 361.00 | 283,38 | |
| 195 |
298,65 | 234,44 | 380,25 | 298,50 | |
| 200 | 314,16 | 246,62 | 400,00 | Of 314.00 | |
Note. The cross-sectional area and weight of 1 m of the rod is calculated based on nominal size, the density of steel is equal to 7.85 g/cm.
Examples of symbols are:
round stamps U10 with a diameter of 40 mm:
square stamp U12 with a side of a square 60 mm:
3. Ovality (difference between the largest and smallest diameters in the same cross section) round steel and Combichrist (difference between the diagonals in one cross-section), square steel should not exceed 0.6 tolerances for diameter or side of square.
4. Diameter and ovality of round steel, the side and diagonal of a square of steel measured at a distance of not less than 100 mm from the end.
5. The bars are supplied in lengths of not less than:
1.5 m — diameter round or square up to 50 mm;
1.0 m — diameter circle or square over 50 to 75 mm;
0.75 m — diameter circle or square of St… 75 mm.
Delivery of bars with a length of at least 0.5 m in an amount of not more than 10% of the batch weight.
By agreement of the parties, the bars can be supplied in length not less than 0.5 m.
6. Limit deviations of the length bars in lengths and dimensional length, must not exceed:
+70 mm, for bars with diameter or side of square from 40 to 80 mm;
+100 mm for bars with diameter or side of square over 80 to 150 mm;
+150 mm for bars with diameter or side of square in excess of 150 mm.
7. Square steel comes with sharp edges. It is possible to supply square steel with blunt edges; dullness should not exceed 0.15 of the square.
8. The curvature of the rod should not exceed 0.5% of the length.
9. The apparent twisting square steel around the longitudinal axis is not allowed.
10. Steel grades and specifications are established by the relevant standards.
