TR EN
COLD DRAWN STEEL BARS
In order to supply the precise dimensional tolerances of the market, we also do bar to bar and coil to bar cold drawing. Our cold drawing plants use our hot rolling mill's bars as raw material for bar to bar cold drawing. For coil to bar cold drawing, wire rods of worldwide well known steel mills are being used as raw material.

We are capable of drawing round, flat, square and hexagonal steel bars in EN 10278 and ASTM A 108 tolerances. Other than cold drawing, we also have alternative cold finishing units such as peeling and grinding. Besides, we are capable of providing inspection certificate with crack control by using our own eddy current test devices.





DIMENSIONAL TOLERANCES FOR BRIGHT STEEL PRODUCTS ( TS EN 10278 )
 
Nihai duruma göre tolerans sınıfı / Tolerance class according to final state
   Nihai durum / Final State       h6       h7       h8       h9       h10       h11       h12   
Çekilmiş / Cold Drawn       R R R,S,H R,S,H
Kabuğu Soyulmuş / Peeled       R R R R
Taşlanmış / Ground R R R R R R R
Parlatılmış / Brightened R R R R R R R
R = Yuvarlak / Round - S = Kare / Square - H = Altıgen / Hexagon
Tolerans Sınıfları / Tolerance Classes
Anma Boyutları
Nominal Dimensions   (mm)
h6 h7 h8 h9 h10 h11 h12
>   1 - ≤ 3   0,006     0,010     0,014     0,025     0,040     0,060     0,100  
>   3 - ≤ 6 0,008 0,012 0,018 0,030 0,048 0,075 0,120
>   6 - ≤ 10 0,009 0,015 0,022 0,036 0,058 0,090 0,150
>   10 - ≤ 18 0,011 0,018 0,027 0,043 0,070 0,110 0,180
>   18 - ≤ 30 0,013 0,021 0,033 0,052 0,084 0,130 0,210
>   30 - ≤ 50 0,016 0,025 0,039 0,062 0,100 0,160 0,250
>   50 - ≤ 80 0,019 0,030 0,046 0,074 0,120 0,190 0,300
>   80 - ≤ 120 0,022 0,035 0,054 0,087 0,140 0,220 0,350
>   120 - ≤ 180 0,025 0,040 0,063 0,100 0,160 0,250 0,400
>   180 - ≤ 200 0,029 0,046 0,072 0,115 0,185 0,290 0,460

Yukarıdaki tüm toleranslar mm cinsinden eksi yönde sapma olarak alınmalıdır.
All the Tolerances above must be taken as minus deviations in mm.
 
SOĞUK ÇEKİLMİŞ LAMALAR İÇİN TOLERANSLAR
TOLERANSCES FOR COLD DRAWN FLAT BARS
Genişlik / Wideness Sapma
Deviation
Sınıf
CLass
Kalınlık
Thickness
Sapma
Deviation
Sınıf
CLass
mm mm mm
≤ 18   h 11 > 3 ≤ 6 -0,075 h 11
0 -0,11
> 18 ≤ 30   h 11 > 6 ≤ 10 -0,090 h 11
0 -0,13
> 30 ≤ 50   h 11 > 10 ≤ 18 -0,11 h 11
0 -0,16
> 50 ≤ 80   h 11 > 18 ≤ 30 -0,13 h 11
0 -0,19
> 80 ≤ 100   h 11 > 30 ≤ 50 -0,16 h 11
0 -0,22
> 100 ≤ 150     > 50 ≤ 60 -0,19 h 11
+0,50 -0,50
> 150 ≤ 200     > 60 ≤ 80 -0,30 h 12
+1,00 -1,00
> 200 ≤ 300     > 80 ≤ 100 -0,35 h 12
+2,00 -2,00
> 300 ≤ 400          
+2,50 -2,50

The tolerances shown on the table are applied only for low carbon ( C    20%) steels and low cabon free cutting steels.
For all other steel types, deviation is 50% increased.




DIMENSIONAL TOLERANCES FOR BRIGHT STEEL PRODUCTS (ASTM A 108/LEVEL ONE)
 
Ölçü
Size, in. (mm)
Karbon Değeri ≤ % 0.28

Maximum of Carbon Range
0.28 % or less
Karbon Değeri
> % 0.28 - ≤ % 0.55

Maximum of Carbon Range
over 0.28 % to 0.55 % incl

Karbon Değeri ≤ % 0.55
Tavlı veya Gerilim Gidermeli

Maximum of Carbon Range
to 0.55 % incL,
Stress Reliveved or Annealed
after Cold Finishing
 
Karbon Değeri > % 0.55

Maximum of Carbon Range
over 0.55 %
Tüm toleranslar inç (mm) cinsinden ve eksi değerlerdir / All tolerances are in inches (mm) and are minus
Yuvarlak ( 6 inç'e kadar soğuk çekilmiş veya soğuk işlenmiş) / Rounds ( Cold Drawn to 6 in. (152.40 mm) or Turned and Polished )
≤ 1(25.4) Kangal Halinde / in coils 0.002 (.051) 0.003 (.076) 0.004 (.102) 0.005 (.127)
Çubuklar / Cut Lengths
≤ 1  1/2  (38.10) 0.003 (.076) 0.004 (.102) 0.005 (.127) 0.006 (.152)
  > 1  1/2  (38.10) - ≤ 2  1/2  (63.50)   0.004 (.102) 0.005 (.127) 0.006 (.152) 0.007 (.178)
> 2  1/2  (63.50) - ≤ 4 (101.60) 0.005 (.127) 0.006 (.152) 0.007 (.178) 0.008 (.203)
> 4 (101.60) - ≤ 6 (152.40) 0.006 (.152) 0.007 (.178) 0.008 (.203) 0.009 (.229)
> 6 (152.40) - ≤ 8 (203.20) 0.007 (.178) 0.008 (.203) 0.009 (.229) 0.010 (.254)
> 8 (203.20) - ≤ 9 (228.60) 0.008 (.203) 0.009 (.229) 0.010 (.254) 0.011 (.279)
 
Altıgen / Hexagons
≤ 3/4 (19.05) 0.003 (.076) 0.004 (.102) 0.005 (.127) 0.007 (.178)
  > 3/4 (19.05) - ≤ 1  1/2 (38.10)     0.004 (.102)     0.005 (.127)     0.006 (.152)     0.008 (.203)  
  > 1   1/2 (38.10) - ≤ 2  1/2 (63.50)   0.005 (.127) 0.006 (.152) 0.007 (.178) 0.009 (.229)
> 2 1/2 (63.50) - ≤ 3 1/8 (79.38) 0.006 (.152) 0.007 (.178) 0.008 (.203) 0.010 (.254)
> 3 1/8 (79.38) - ≤ 4 (101.60) 0.006 (.152) ... ... ...
 
Kare / Squares
≤ 3/4 (19.05) 0.003 (.076) 0.005 (.127) 0.006 (.152) 0.008 (.203)
  > 3/4 (19.05) - ≤ 1  1/2 (38.10)     0.004 (.102)     0.006 (.152)     0.007 (.178)     0.009 (.229)  
  > 1   1/2 (38.10) - ≤ 2  1/2 (63.50)   0.005 (.127) 0.007 (.178) 0.008 (.203) 0.0010 (.254)
> 2 1/2 (63.50) - ≤ 4 (101.60) 0.006 (.152) 0.007 (.178) 0.008 (.203) 0.010 (.254)
> 4 (101.60) - ≤ 5 (127.00) 0.011 (.279) ... ... ...
 
Lama / Flats *
≤ 3/4 (19.05) 0.004 (.102) 0.005 (.127) 0.007 (.178) 0.009 (.229)
  > 3/4 (19.05) - ≤ 1  1/2 (38.10)     0.005 (.127)     0.006 (.152)     0.009 (.229)     0.011 (.279)  
  > 1   1/2 (38.10) - ≤ 3 (76.2)   0.006 (.152) 0.007 (.178) 0.011 (.279) 0.013 (.330)
> 3 (76.2) - ≤ 4 (101.60) 0.007 (.178) 0.009 (.229) 0.012 (.305) 0.017 (.432)
> 4 (101.60) - ≤ 6 (152.40) 0.009 (.229) 0.011(.279) 0.013 (.330) 0.021 (.533)
> 6 (152.40) 0.014 (.356) ... ... ...
COLD DRAWING STEEL BARS
COLD DRAWING SQUARE STEEL BAR
COLD DRAWING FLAT STEEL BAR
COLD DRAWING HEXAGONAL STEEL BAR
COLD DRAWING ROUND STEEL BAR