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Preferred dimensions, mass and dimensional tolerances of hot rolled round steel bars for general and precision purposes

Hot rolled round bar d
Hot rolled round bar

Diameters $ d $ , in $ \mathrm{mm} $ Limit deviation normal, in $ \mathrm{mm} $ Limit deviation precision (P), in $ \mathrm{mm} $ Mass per unit length $ M $ , in $ \mathrm{kg/m} $ Cross-sectional area $ A $ , in $ \mathrm{cm^2} $
10 ±0.4 ±0.15 0.617 0.785
12 ±0.4 ±0.15 0.888 1.13
13 ±0.4 ±0.20 1.04 1.33
14 ±0.4 ±0.20 1.21 1.54
15 ±0.4 ±0.20 1.39 1.77
16 ±0.5 ±0.20 1.58 2.01
18 ±0.5 ±0.20 2.00 2.54
19 ±0.5 ±0.20 2.23 2.84
20 ±0.5 ±0.20 2.47 3.14
22 ±0.5 ±0.20 2.98 3.80
24 ±0.5 ±0.25 3.55 4.52
25 ±0.5 ±0.25 3.85 4.91
26 ±0.6 ±0.25 4.17 5.31
27 ±0.6 ±0.25 4.49 5.73
28 ±0.6 ±0.25 4.83 6.16
30 ±0.6 ±0.25 5.55 7.07
32 ±0.6 ±0.30 6.31 8.04
35 ±0.6 ±0.30 7.55 9.62
36 ±0.8 ±0.30 7.99 10.2
38 ±0.8 ±0.30 8.90 11.3
40 ±0.8 ±0.30 9.86 12.6
42 ±0.8 ±0.40 10.9 13.9
45 ±0.8 ±0.40 12.5 15.9
48 ±0.8 ±0.40 14.2 18.1
50 ±0.8 ±0.40 15.4 19.6
52 ±1 ±0.40 16.7 21.2
55 ±1 ±0.50 18.7 23.8
60 ±1 ±0.50 22.2 28.3
63 ±1 ±0.50 24.5 31.2
65 ±1 ±0.50 26.0 33.2
70 ±1 ±0.50 30.2 38.5
73 ±1 ±0.50 32.9 41.9
75 ±1 ±0.50 34.7 44.2
80 ±1 Not applicable 39.5 50.3
85 ±1.3 Not applicable 44.5 56.7
90 ±1.3 Not applicable 49.9 63.6
95 ±1.3 Not applicable 55.6 70.9
100 ±1.3 Not applicable 61.7 78.5
105 ±1.5 Not applicable 68.0 86.6
110 ±1.5 Not applicable 74.6 95.0
115 ±1.5 Not applicable 81.5 104
120 ±1.5 Not applicable 88.8 113
125 ±2 Not applicable 96.3 123
130 ±2 Not applicable 104 133
135 ±2 Not applicable 112 143
140 ±2 Not applicable 121 154
145 ±2 Not applicable 130 165
150 ±2 Not applicable 139 177
155 ±2 Not applicable 148 189
160 ±2 Not applicable 158 201
165 ±2.5 Not applicable 168 214
170 ±2.5 Not applicable 178 227
175 ±2.5 Not applicable 189 241
180 ±2.5 Not applicable 200 254
190 ±2.5 Not applicable 223 284
200 ±2.5 Not applicable 247 314
220 ±3 Not applicable 298 380
250 ±4 Not applicable 385 491
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