Round hot-rolled Steel Bars Dimensions
CARBON STEEL STRUCTURAL ROUND BARS WITHOUT SURFACE TREATMENT
section ( mm ) 8.0 to 22
Diameter, mm
Tolerances
S, mm2
G, 1 kg
A
B
C
8
0,5027
0,395
9
+0,1
+0,3
0,6362
0,499
10
0,7854
0,616
11
-0,5
0,9503
0,746
12
1,131
0,888
13
1,327
1,04
14
1,539
1,21
15
-0,3
1,767
1,39
16
2,011
1,58
17
2,270
1,78
18
2,545
2,00
19
2,835
2,23
20
3,142
2,47
21
+ 0.1
+0.2
0.4
3,462
2,72
22
3,801
2,980
Diameter – Curvature – Length Tolerances STANDARD : GOST 2590 - 88 Diameter:
d, mm
5 < d ≤ 9
+ 0.5
9 < d ≤ 19
+ 0.6
19 < d ≤ 25
+ 0.8
25 < d ≤ 31
+0.9
Curvature:
a, mm
Curvature
d ≤ 25
0.5 % of L.
d ³ 25
0.4 % of L
Length:
L, m
L ≤ 4
+ 30 mm
4 < L ≤ 6
+ 50 mm
19 < a ≤ 25
L ≥ 6
+ 70 mm
