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Halilbeyli OSB Mah. Nif Cad. No:20
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Dimensions and Tolerances

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Dimensions and Tolerances

Shape and Size Tolerances
            Dimensional tolerances must be specified by the purchaser at the time of order and determined according to ISO 286-2 as given in Table 1. Unless otherwise specified at the time of ordering, dimensional tolerances should be as stated below:
 
a) Cold Drawn round bars or turned bars: (Table 2) h10,
b) For hexagonal and square cold-drawn bars: acc. to Table 1 and Table 2, h11 for dimensions ≤ 80 mm, h12 for dimensions> 80 mm,
c) For ground products: h9 according to Table 1 and Table 2,
                                                   
Inspection and Tests
  Dimensional inspection should be done as follows:
a) For round bars: At least 150 mm from the end of the bar,
b) For cut length round bars: At a distance of at least 10 mm from the end of the bar,
c) For non-round bars: At least 25 mm from the end of the bar.
                                                   
Linearity Tolerance
  The tolerances specified in Table 3 apply.
                                                   
Length Types and Length Tolerances
  Unless otherwise specified during the order, their lengths and length tolerances should be as specified in Table 4.
                                                   
                                                   
        Operation ISO 286-2’ye Göre Tolerans Sınıfı      
        h6 h7 h8 h9 h10 h11 h12      
        Cold Drawn       R R R, T, H R, T, H      
        Turned       R R R R      
        Grinded R R R R R R R      
        Polished R R R R R R R      
        R= Round, T= Tetragon, H= Hexagon      
        Table -1: Tolerance Class According to the Process Performed      
                                                   
        Nominal Size d (mm) Tolerance Class as per ISO 286-2      
        h6 h7 h8 h9 h10 h11 h12      
        1 < d ≤ 3 +0 / -0,006 +0 / -0,010 +0 / -0,014 +0 / -0,025 +0 / -0,040 +0 / -0,060 +0 / -0,100      
        3 < d ≤ 6 +0 / -0,008 +0 / -0,012 +0 / -0,018 +0 / -0,030 +0 / -0,048 +0 / -0,075 +0 / -0,120      
        6 < d ≤ 10 +0 / -0,009 +0 / -0,015 +0 / -0,022 +0 / -0,036 +0 / -0,058 +0 / -0,090 +0 / -0,150      
        10 < d ≤ 18 +0 / -0,011 +0 / -0,018 +0 / -0,027 +0 / -0,043 +0 / -0,070 +0 / -0,110 +0 / -0,180      
        18 < d ≤ 30 +0 / -0,013 +0 / -0,021 +0 / -0,033 +0 / -0,052 +0 / -0,084 +0 / -0,130 +0 / -0,210      
        30 < d ≤ 50 +0 / -0,016 +0 / -0,025 +0 / -0,039 +0 / -0,062 +0 / -0,100 +0 / -0,160 +0 / -0,250      
        50 < d ≤ 80 +0 / -0,019 +0 / -0,030 +0 / -0,046 +0 / -0,074 +0 / -0,120 +0 / -0,190 +0 / -0,300      
        80 < d ≤ 120 +0 / -0,022 +0 / -0,035 +0 / -0,054 +0 / -0,087 +0 / -0,140 +0 / -0,220 +0 / -0,350      
        120 < d ≤ 180 +0 / -0,025 +0 / -0,040 +0 / -0,063 +0 / -0,100 +0 / -0,160 +0 / -0,250 +0 / -0,400      
        180 < d ≤ 200 +0 / -0,029 +0 / -0,046 +0 / -0,072 +0 / -0,115 +0 / -0,185 +0 / -0,290 +0 / -0,460      
        Table -2: Tolerance Classes      
                                                   
        Product Shape Steel Group Nominal Size Max. Deviation (mm)      
             
        Round < %0,25 C   1,00      
        ≥ 0.25% C, alloy steels, heat treatable steels   1,50      
             
        Stainless Steels, Bearing Steels, Tool Steels   1,00      
             
        Tetragon and Hexagon < %0,25 C d ≤ 75 mm 1,00      
        ≥ 0.25% C, alloy steels, heat treatable steels d ≤ 75 mm 2,00      
             
        Stainless Steels, Bearing Steels, Tool Steels d ≤ 75 mm 1,00      
             
        < %0,25 C d > 75 mm 1,50      
        ≥ 0.25% C, alloy steels, heat treatable steels d > 75 mm 2,50      
             
        Stainless Steels, Bearing Steels, Tool Steels d > 75 mm 1,50      
             
        Table -3: Linearity Tolerance      
                                                   
        Length Type Length (mm) Length Tolerance (mm) Must Be Specified During Order      
             
        Manufacturing Length 3.000 – 9.000* ± 500 Requested Length *      
             
        Supply Length 3,000 * or 6,000 * – 0 / 200 E.g.: 6.000mm      
             
        Cut Length  Up to 9,000 Suitable for specifications within ± 5 tolerance  Length and Tolerance      
             
        * Short Bars: Each pack can contain a certain percentage of short bars.      
             – Dimensions ≤ 25mm: Percentage maximum 5%, lengths of short bars at least two-thirds of the nominal length ordered,      
             
             – Dimensions> 25mm: Percentage maximum 10%, lengths of short bars at least two-thirds of the nominal length ordered,      
             
        When specifically specified at the time of ordering, packages are delivered without short bars.      
        Table -4: Length Types and Length Tolerances      
DIAMETER TOLERANCES
Diameter Size (mm) Normal Limit Deviation (mm) Mass (kg/m) Cross Section (cm2)   Diameter Size (mm) Normal Limit Deviation (mm) Mass (kg/m) Cross Section (cm2)
 
10,00 ± 0,40 0,62 0,79   65,00 ± 1,00 26,00 33,20
12,00 ± 0,40 0,88 1,13   70,00 ± 1,00 30,20 38,50
13,00 ± 0,40 1,04 1,33   73,00 ± 1,00 32,90 41,90
14,00 ± 0,40 1,21 1,54   75,00 ± 1,00 34,70 44,20
15,00 ± 0,40 1,39 1,77   80,00 ± 1,00 39,50 50,30
16,00 ± 0,50 1,58 2,01   85,00 ± 1,30 44,50 56,70
18,00 ± 0,50 2,00 2,54   90,00 ± 1,30 49,90 63,60
19,00 ± 0,50 2,23 2,84   95,00 ± 1,30 55,60 70,90
20,00 ± 0,50 2,47 3,14   100,00 ± 1,30 61,70 78,50
22,00 ± 0,50 2,98 3,80   105,00 ± 1,50 68,00 86,60
24,00 ± 0,50 3,55 4,52   110,00 ± 1,50 74,60 95,00
25,00 ± 0,50 3,85 4,91   115,00 ± 1,50 81,50 104,00
26,00 ± 0,60 4,17 5,31   120,00 ± 1,50 88,80 113,00
27,00 ± 0,60 4,49 5,73   125,00 ± 2,00 96,30 123,00
28,00 ± 0,60 4,83 6,16   130,00 ± 2,00 104,00 133,00
30,00 ± 0,60 5,55 7,07   135,00 ± 2,00 112,00 143,00
32,00 ± 0,60 6,31 8,04   140,00 ± 2,00 121,00 154,00
35,00 ± 0,60 7,55 9,62   145,00 ± 2,00 130,00 165,00
36,00 ± 0,80 7,99 10,20   150,00 ± 2,00 139,00 177,00
38,00 ± 0,80 8,90 11,30   155,00 ± 2,00 148,00 189,00
40,00 ± 0,80 9,86 12,60   160,00 ± 2,00 158,00 201,00
42,00 ± 0,80 10,90 13,90   165,00 ± 2,50 168,00 214,00
45,00 ± 0,80 12,50 15,90   170,00 ± 2,50 178,00 227,00
48,00 ± 0,80 14,20 18,10   175,00 ± 2,50 189,00 241,00
50,00 ± 0,80 15,40 19,60   180,00 ± 2,50 200,00 254,00
52,00 ± 1,00 16,70 21,20   190,00 ± 2,50 223,00 284,00
55,00 ± 1,00 18,70 23,80   200,00 ± 2,50 247,00 314,00
60,00 ± 1,00 22,20 28,30   220,00 ± 3,00 298,00 380,00
63,00 ± 1,00 24,50 31,20   250,00 ± 4,00 385,00 491,00
* Diameters greater than 250 mm can be supplied with a limit deviation of ± 6.0 mm.
** When ordering, the total ranges of permitted deviations may, by agreement, be fully positive (+) size.
*** Density calculated using 7,85 kg/dm3
 
LENGTH TOLERANCES
Length Type * Range (mm) Boundary Deviation **
Production Length From 3.000 to 13.000 with a range of 2.000 per order item. 10% of the bars supplied may be below the minimum value for the range ordered, but not less than 75% of the minimum value of the range.
Fixed Length From 3.000 to 13.000 ± 100 mm
Exact Length < 6.000 ± 25 mm
6000 ≥  L ≤ 13000 ± 50 mm
* The buyer must specify the required length type and required length range or required length when querying.
** If agreed during the request and order, the products can be delivered at the upper limits.
 
  LINEARITY (q) TOLERANCES  
  Nominal Diameter (mm) Tolerance  
  d ≤ 25  
  25 < d ≤ 80 q ≤ %0,40 x L  
  80 < d ≤ 250 q ≤ %0,25 x L  
 
  OVALITY  
  The deviation in roundness should not exceed 75% of the tolerance range given in Diameter Tolerances.  
   
SIZE TOLERANCES
Diameter Size (mm) Normal Limit Deviation (mm) Mass (kg/m) Cross Section (cm2)   Diameter Size (mm) Normal Limit Deviation (mm) Mass (kg/m) Cross Section (cm2)
 
8,00 ± 0,40 0,50 0,64   40,00 ± 0,80 12,60 12,60
10,00 ± 0,40 0,79 1,00   45,00 ± 0,80 15,90 15,90
12,00 ± 0,40 1,13 1,44   50,00 ± 0,80 19,60 19,60
13,00 ± 0,40 1,33 1,69   55,00 ± 1,00 23,70 23,70
14,00 ± 0,40 1,54 1,96   60,00 ± 1,00 28,30 28,30
15,00 ± 0,50 1,77 2,25   65,00 ± 1,00 33,20 33,20
16,00 ± 0,50 2,01 2,56   70,00 ± 1,00 38,50 38,50
18,00 ± 0,50 2,54 3,24   75,00 ± 1,00 44,20 44,20
20,00 ± 0,50 3,14 4,00   80,00 ± 1,00 50,20 50,20
22,00 ± 0,50 3,80 4,84   90,00 ± 1,00 63,60 63,60
24,00 ± 0,50 4,52 5,76   100,00 ± 1,30 78,50 78,50
25,00 ± 0,50 4,91 6,25   110,00 ± 1,50 95,00 95,00
26,00 ± 0,60 5,31 6,76   120,00 ± 1,50 113,00 113,00
28,00 ± 0,60 6,15 7,84   130,00 ± 1,80 133,00 133,00
30,00 ± 0,60 7,07 9,00   140,00 ± 1,80 154,00 154,00
32,00 ± 0,60 8,04 10,20   150,00 ± 1,80 177,00 177,00
35,00 ± 0,60 9,62 12,30          
* When ordering, the total ranges of permitted deviations may, by agreement, be completely plus (+) size.
** Density calculated using 7,85 kg/dm3.
 
BENDING
Nominal Size (mm)   Radius
8 < a ≤ 14 4 º/m (with max. 24º)
14 < a ≤ 50 3 º/m (with max. 18º)
50 < a 3 º/m (with max. 15º)
 
LENGTH TOLERANCES
Length Type * Range (mm) Boundary Deviation **
Production Length From 3.000 to 13.000 with a range of 2.000 per order item. 10% of the bars supplied may be below the minimum value for the range ordered, but not less than 75% of the minimum value of the range.
Fixed Length From 3.000 to 13.000 ± 100 mm
Exact Length < 6.000 ± 25 mm
6.000 ≥  L ≤ 13.000 ± 50 mm
* The buyer must specify the required length type and required length range or required length when querying.
** If agreed during the request and order, the products can be delivered at the upper limits.
 
  LINEARITY (q) TOLERANCES  
  Nominal Size (mm) Tolerance  
  a ≤ 25  
  25 < a ≤ 80 q ≤ %0,40 x L  
  80 < a q ≤ %0,25 x L  
 
  CORNER RADIUS (r) TOLERANCES  
  Nominal Size (mm) Radius  
  8 ≤ a ≤ 12 r ≤ 1,00 mm  
  12 < a ≤ 20 r ≤ 1,50 mm  
  20 < a ≤ 30 r ≤ 2,00 mm  
  30 < a ≤ 50 r ≤ 2,50 mm  
  50 < a ≤ 100 r ≤ 3,00 mm  
  100 < a ≤ 150 r ≤ 4,00 mm  
 
  SHAPE LENGTH (u) TOLERANCES  
  Nominal Size (mm) u  
  a ≤ 50 1,50 mm  
  50 < a ≤ 75 2,25 mm  
  75 < a ≤ 100 3,00 mm  
  100 < a ≤ 150 4,50 mm  
 
SIZE TOLERANCES
Width w (mm) Limit Deviation (mm)   Thickness t (mm) Limit Deviation (mm)
 
10 ≤ w ≤ 40 ± 0,75   t ≤ 20 ± 0,50
40 < w ≤ 80 ± 1,00   20 < t ≤ 40 ± 1,00
80 < w ≤ 100 ± 1,50   40 < t ≤ 80 ± 1,50
100 < w ≤ 120 ± 2,00      
120 < w ≤ 150 ± 2,50      
* When ordering, the total ranges of permitted deviations may, by agreement, be completely plus (+) size.
** Density calculated using 7,85 kg/dm3.
 
LENGTH TOLERANCES
Length Type * Range (mm) Boundary Deviation **
Production Length From 3.000 to 13.000 with a range of 2.000 per order item. 10% of the bars supplied may be below the minimum value for the range ordered, but not less than 75% of the minimum value of the range.
Fixed Length From 3.000 to 13.000 ± 100 mm
Exact Length < 6.000 ± 25 mm
6000 ≥  L ≤ 13000 ± 50 mm
* The buyer must specify the required length type and required length range or required length when querying.
** If agreed during the request and order, the products can be delivered at the upper limits.
 
  LINEARITY (q) TOLERANCES  
  Nominal Size Tolerances  
  (b x t) ≤ 1000 mm2 q ≤ %0,40 x L  
  1000 mm2 < (b x t) q ≤ %0,25 x L  
 
  SHAPE LENGTH (u) TOLERANCES  
  Nominal Size (mm) u  
  10 < t ≤ 25 2,25 mm  
  25 < t ≤ 40 3,00 mm  
  40 < t ≤ 80 4,50 mm  
a = t (mm)
 
SIZE TOLERANCES
Key Width s (mm)   Limit Deviation (mm)
13 ≤ s ≤ 15   ± 0,40
16 ≤ s ≤ 23,50   ± 0,50
25,50 ≤ s ≤ 33,50   ± 0,60
35,50 ≤ s ≤ 47,50   ± 0,80
52 ≤ s ≤ 78   ± 1,00
83 ≤ s ≤ 98   ± 1,30
103   ± 1,50
* When ordering, the total ranges of permitted deviations may, by agreement, be fully positive (+) size.
** Density calculated using 7,85 kg/dm3
 
LENGTH TOLERANCES
Length Type * Range (mm) Boundary Deviation **
Production Length From 3.000 to 13.000 with a range of 2.000 per order item. 10% of the bars supplied may be below the minimum value for the range ordered, but not less than 75% of the minimum value of the range.
Fixed Length From 3.000 to 13.000 ± 100 mm
Exact Length < 6.000 ± 25 mm
6000 ≥  L ≤ 13000 ± 50 mm
* The buyer must specify the required length type and required length range or required length when querying.
** If agreed during the request and order, the products can be delivered at the upper limits.
 
  LINEARITY (q) TOLERANCES  
  Nominal Size Tolerance  
  s ≤ 39,50 mm  
  39,50 < s ≤ 83,00 q ≤ %0,40 x L  
  83,00 < s ≤ 103,00 q ≤ %0,25 x L  
 
  CORNER RADIUS (r) TOLERANCES  
  Nominal Size (mm) Radius  
  s ≤ 20,00 r ≤ 1,50 mm  
  20,00 < s ≤ 28,50 r ≤ 2,00 mm  
  28,50 < s ≤ 48,00 r ≤ 2,50 mm  
  48,00 < s ≤ 83,00 r ≤ 3,00 mm  
  83,00 < s ≤ 103,00 r ≤ 3,50 mm  
 
 
ALLOY STEEL GROUPS – MATERIAL NO: 1.1100 to 1.1299, 1.3500 to 1.3999, 1.4000 to 1.4899, 1.5000 to 1.8599.
Nominal Size          (mm)                                         BAR LENGTH  < 3.500 mm 3.500 mm < BAR LENGTH < 6.000 mm
Cross Section, Diameter (D) Length (L) Minimum Addition to be Given Cross Section, Diameter (D) Length (L) Minimum Addition to be Given
Tolerances (mm) Permissible Change (mm) Tolerances (mm) Permissible Change (mm) D (mm) L (mm) Tolerances (mm) Permissible Change (mm) Tolerances (mm) Permissible Change (mm) D (mm) L (mm)
41 – 63 + 6,00 ± 1,10 + 12,00 +11 / -8 + 5,00 + 4,00 + 9,00 ± 2,90 + 17,00 +14 / -9 + 6,00 + 8,00
64 – 80 + 7,00 ± 1,40 + 14,00 +12 / -9 + 6,00 + 5,00 + 11,00 ± 3,10 + 18,00 +15 / -11 + 8,00 + 7,00
81 – 100 + 8,00 ± 1,70 + 15,00 +13 / -9 + 6,00 + 6,00 + 12,00 ± 3,60 + 20,00 +17 / -11 + 8,00 + 9,00
101 – 125 + 10,00 ± 2,00 + 16,00 +14 / -11 + 8,00 + 5,00 + 13,00 ± 4,00 + 21,00 +18 / -12 + 9,00 + 9,00
126 – 160 + 12,00 ± 2,30 + 18,00 +14 / -11 + 10,00 + 7,00 + 15,00 ± 4,60 + 22,00 +20 / -13 + 10,00 + 9,00
161 – 200 + 14,00 ± 2,80 + 20,00 +14 / -13 + 11,00 + 7,00 + 18,00 ± 5,20 + 25,00 +22 / -14 + 13,00 + 11,00
201 – 250 + 17,00 ± 3,40 + 23,00 +16 / -16 + 14,00 + 7,00 + 21,00 ± 6,00 + 27,00 +24 / -16 + 15,00 + 11,00
251 – 315 + 21,00 ± 4,20 + 26,00 +18 / -18 + 17,00 + 8,00 + 24,00 ± 7,00 + 30,00 +27 / -18 + 17,00 + 12,00
316 – 400 + 26,00 ± 5,10 + 30,00 +21 / -21 + 21,00 + 9,00 + 29,00 ± 8,40 + 35,00 +31 / -20 + 21,00 + 15,00
401 – 500 + 32,00 ± 6,30 + 36,00 +25 / -25 + 26,00 + 11,00 + 35,00 ± 10,00 + 40,00 +35 / -24 + 25,00 + 16,00
501 – 630 + 39,00 ± 7,80 + 42,00 +29 / -29 + 31,00 + 13,00 + 42,00 ± 12,00 + 47,00 +42 / -28 + 30,00 + 19,00
631 – 800 + 49,00 ± 9,80 + 52,00 +35 / -35 + 39,00 + 17,00 + 52,00 ± 14,90 + 55,00 +49 / -33 + 37,00 + 22,00
801 – 1000 + 61,00 ± 12,10 + 63,00 +42 / -42 + 49,00 + 21,00 + 64,00 ± 18,10 + 66,00 +59 / -40 + 46,00 + 26,00
 

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