Mahalaxmi Extrusions

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Tolerance

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The dimensions and Tolerances for copper and copper alloy rods and bars for general engineering purposes as per is 2826-1996. All the dimensions are in millimeters.


DIMENSION & TOLERANCES FOR COPPER & COPPER ALLOY RODS AND BAR 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 Percent +0.75 Percent
70 100 +1.5 Percent +1.75 Percent
100 - +2.5 Percent +1.5 Percent
All dimensions are in millimeters 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 Percent -1.5 Percent
100 - -3.0 Percent -2.0 Percent
All dimensions are in millimeters 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 40 +­0.23 -0.15
40 50 +1.0 Percent +0.75 Percent
50 70 +1.5 Percent +1.0 Percent
70 100 +2.0 Percent +1.5 Percent
100 +3.0 Percent +2.0 Percent

All dimensions are in millimeters For Rectangle Rods & Bars

- Width Across Flats Tolerance On Thickness On Thickness over 12 On Thickness over 20 On Thickness over 40
Over Upto & Including on width upto including 12 upto including 20 upto including 40 upto including 100
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 Percent +0.20 +0.25 +0.30 +0.40
50 70 +1.0 Percent +0.40 +0.45 +0.50 +0.50
70 100 +2.0 Percent +0.50 +0.60 +0.80 +0.80
100 - +2.5 Percent +0.60 +0.75 +1.00 +1.00