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Dimensions & Tolarances

 
   
 

DIMENSION AND TOLERANCES FOR COPPER & COPPER ALLOY RODS AND
BARS FOR GENERAL ENGINEERING PURPOSES AS PER IS 2826-1996


All Dimensions are in millimeters

For Round Rods & Bars
Diameter Normal
Tolerance
Close
Tolerance
Over Upto & Including
6 10 0.05 - 0.05
10 20 0.10 - 0.05
20 30 0.15 - 0.08
30 50 0.20 - 0.10
50 70 0.75% 0.5 %
70 100 1.5% 1.75 %
100 - 2.5 % 1.5 %

For Square Rods & Bars
Width Across Flats Normal
Tolerance
Close
Tolerance
Over Upto & Including
6 10 0.09 - 0.05
10 20 0.13 - 0.10
20 30 0.18 - 0.13
30 50 0.23 - 0.15
40 70 1.0% 0.75 %
70 100 2.0% 1.5 %
100 - 3.0% 2.0 %

For Hexagonal Rods & Bars
Width Across Flats Normal
Tolerance
Close
Tolerance
Over Upto & Including
6 10 - 0.10 - 0.08
10 20 - 0.20 - 0.10
20 30 - 0.25 - 0.13
30 40 - 0.30 - 0.15
40 50 - 0.40 - 0.20
50 70 - 0.50 - 0.25
70 100 - 2.0 % - 1.5 %
100   - 3.0% - 2.0 %

For Rectangular Rods & Bars
Width Across Flats Tolerance
on width
On Thickness
upto &
including 12
On Thickness
over 12 upto
including 20
On Thickness
over 20 upto
including 40
On Thickness
over 40 upto
including 100
Over Upto & Including
6 10 0.15 0.10 - - -
10 20 0.20 0.15 0.20 - -
20 40 0.25 0.20 0.25 0.25 -
40 50 1.0 % 0.20 0.25 0.30 0.40
50 70 1.0 % 0.40 0.45 0.50 0.50
70 100 2.0 % 0.50 0.60 0.80 0.80
100 - 2.5 % 0.60 0.75 1.00 1.00

 
     
 
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