STANDARD TOLERANCES
EXTRUDED TUBE
DIAMETER
Allowable deviation of mean diameter from specified diameter (size)
Tolerance, Inches plus and minus
|
Specified
diameter Inches |
Alloys 5083,
5086, 5454 |
Other
alloys |
Difference between 1/2 (AA+BB)
and specified diameter |
|
0.500- 0.999
|
0.015
|
0.010
|
|
|
1.000- 1.999
|
0.018
|
0.012
|
|
|
2.000- 3.999
|
0.023
|
0.015
|
|
|
4.000- 5.999
|
0.038
|
0.025
|
|
|
6.000- 7.999
|
0.053
|
0.035
|
|
|
8.000- 9.999
|
0.068
|
0.045
|
|
|
10.000-11.999
|
0.083
|
0.055
|
|
|
12.000-13.999
|
0.098
|
0.065
|
|
|
14.000-15.999
|
0.113
|
0.075
|
|
|
16.000-17.999
|
0.128
|
0.085
|
Allowable deviation of diameter at any point from specified diameter (size)
Tolerance, Inches plus and minus
|
Specified
diameter Inches |
Alloys 5083,
5086, 5454 |
Other
alloys |
 Difference between AA+BB and specified diameter |
|
0.500- 0.999
|
0.030
|
0.020
|
|
|
1.000- 1.999
|
0.038
|
0.025
|
|
|
2.000- 3.999
|
0.045
|
0.030
|
|
|
4.000- 5.999
|
0.075
|
0.050
|
|
|
6.000- 7.999
|
0.113
|
0.075
|
|
|
8.000- 9.999
|
0.150
|
0.100
|
|
|
10.000-11.999
|
0.188
|
0.125
|
|
|
12.000-13.999
|
0.225
|
0.150
|
|
|
14.000-15.999
|
0.263
|
0.175
|
|
|
16.000-17.999
|
0.300
|
0.200
|
STANDARD TOLERANCES
EXTRUDED TUBE
WIDTH AND DEPTH
Allowable deviation of width or depth
at corners from specified width or depth
at corners from specified width or depth
Tolerance, Inches pluse and minus
square, rectangular
square, rectangular
|
Specified width
or depth Inches |
Alloys 5083,
5086, 5454 |
Other
alloys |
|
0.500- 0.749
|
0.018
|
0.012
|
|
0.750- 0.999
|
0.021
|
0.014
|
|
1.000- 1.999
|
0.027
|
0.018
|
|
2.000- 3.999
|
0.038
|
0.025
|
|
4.000- 4.999
|
0.053
|
0.035
|
|
5.000- 5.999
|
0.068
|
0.045
|
|
6.000- 6.999
|
0.083
|
0.055
|
|
7.000- 7.999
|
0.098
|
0.065
|
|
8.000- 8.999
|
0.113
|
0.075
|
|
9.000- 9.999
|
0.128
|
0.085
|
|
10.000-10.999
|
0.143
|
0.095
|
|
11.000-12.000
|
0.158
|
0.105
|
 |
 |
|
Difference between AA and specified width or depth
|
|
STANDARD TOLERANCES
EXTRUDED TUBE
WIDTH AND DEPTH
Allowable deviation of width or depth
not at corners from specified width or depth
not at corners from specified width or depth
Tolerance, Inches plus and minus
|
Specified |
Square
hexagonal, octagonal |
Rectangular
All Alloys |
|
|
Alloys 5083,
5086, 5454 |
Other
alloys |
||
|
0.500- 0.749
|
0.030
|
0.020
|
The tolerance for the width is the value in the previous column for a dimension equal to the depth and conversely, but in no case is the tolerance less than at the corners.
Example: The width tolerance of a 1 x 3 inch alloy 6061 rectangular tube is ±0.025 inch and the depth tolerance ±0.035 inch. |
|
0.750- 0.999
|
0.030
|
0.020
|
|
|
1.000- 1.999
|
0.038
|
0.025
|
|
|
2.000- 3.999
|
0.053
|
0.035
|
|
|
4.000- 4.999
|
0.068
|
0.045
|
|
|
5.000- 5.999
|
0.083
|
0.055
|
|
|
6.000- 6.999
|
0.098
|
0.065
|
|
|
7.000- 7.999
|
0.108
|
0.075
|
|
|
8.000- 8.999
|
0.123
|
0.085
|
|
|
9.000- 9.999
|
0.143
|
0.095
|
|
|
10.000-10.999
|
0.158
|
0.105
|
|
|
11.000-12.000
|
0.173
|
0.115
|
|
 |
 |
 |
|
Difference between AA and specified width, depth or distance across flat
|
||
STANDARD TOLERANCES
EXTRUDED TUBE
Allowable deviation of
mean wall thickness from specified wall thickness
mean wall thickness from specified wall thickness
Tolerance, Inches plus and minus
|
Specified
wall thickness Inches |
Under 1,250
|
1,250 – 2,999
|
Outside
diameter Inches  Difference between 1/2 (AA + BB) and specified wall thickness |
||
|
Alloys 5083,
5086, 5654 |
Other
alloys |
Alloys 5083,
5086, 5454 |
Other
alloys |
||
|
Under 0.047
|
0.009
|
0.006
|
—
|
—
|
|
|
0.047-0.061
|
0.011
|
0.007
|
0.012
|
0.008
|
|
|
0.062-0.077
|
0.012
|
0.008
|
0.012
|
0.008
|
|
|
0.078-0.124
|
0.014
|
0.009
|
0.014
|
0.009
|
|
|
0.125-0.249
|
0.014
|
0.009
|
0.014
|
0.009
|
|
|
0.250-0.374
|
0.017
|
0.011
|
0.017
|
0.011
|
|
|
0.375-0.499
|
—
|
—
|
0.023
|
0.015
|
|
|
0.500-0.749
|
—
|
—
|
0.030
|
0.020
|
|
|
0.750-0.999
|
—
|
—
|
—
|
—
|
|
|
1.000-1.499
|
—
|
—
|
—
|
—
|
|
|
1.500-2.000
|
—
|
—
|
—
|
—
|
|
|
2.001-2.499
|
—
|
—
|
—
|
—
|
|
|
2.500-2.999
|
—
|
—
|
—
|
—
|
|
|
3.000-3.499
|
—
|
—
|
—
|
—
|
|
|
3.500-4.000
|
—
|
—
|
—
|
—
|
|
|
Specified
wall thickness Inches |
3,000 – 4,999
|
5,000 and over
|
|||
|
Alloys 5083,
5086, 5654 |
Other
alloys |
Alloys 5083,
5086, 5454 |
Other
alloys |
||
|
Under 0.047
|
—
|
—
|
—
|
—
|
|
|
0.047-0.061
|
0.012
|
0.008
|
0.015
|
0.010
|
|
|
0.062-0.077
|
0.014
|
0.009
|
0.018
|
0.012
|
|
|
0.078-0.124
|
0.015
|
0.010
|
0.023
|
0.015
|
|
|
0.125-0.249
|
0.020
|
0.013
|
0.030
|
0.020
|
|
|
0.250-0.374
|
0.024
|
0.016
|
0.038
|
0.025
|
|
|
0.375-0.499
|
0.032
|
0.021
|
0.053
|
0.035
|
|
|
0.500-0.749
|
0.042
|
0.028
|
0.068
|
0.045
|
|
|
0.750-0.999
|
0.053
|
0.035
|
0.083
|
0.055
|
|
|
1.000-1.499
|
0.068
|
0.045
|
0.098
|
0.065
|
|
|
1.500-2.000
|
—
|
—
|
0.113
|
0.075
|
|
|
2.001-2.499
|
—
|
—
|
0.128
|
0.085
|
|
|
2.500-2.999
|
—
|
—
|
0.143
|
0.095
|
|
|
3.000-3.499
|
—
|
—
|
0.158
|
0.105
|
|
|
3.500-4.000
|
—
|
—
|
0.173
|
0.115
|
|
STANDARD TOLERANCES
EXTRUDED TUBE
WALL THICKNESS
Allowable deviation of
mean wall thickness from specified wall thickness
mean wall thickness from specified wall thickness
Tolerance, Inches plus and minus
|
All alloys
|
Eccentricity
 Difference between AA and mean wall thickness |
|
|
Under 0.047
to 2.000 |
Plus and minus 10% of mean wall
thickness max ±0.060 min ±0.010 |
|
|
2.001-4.000
|
±0.120
|
|
Specified
wall thickness Inches |
Under 5,000
|
5,000 and over
|
Circumscribing
circle diameter Inches  Difference between1/2 (AA+BB) and specified wall thickness |
||
|
Alloys 5083,
5086, 5454 |
Other
alloys |
Alloys 5083,
5086, 5454 |
Other
alloys |
||
|
Under 0.047
|
0.008
|
0.005
|
0.012
|
0.008
|
|
|
0.047-0.061
|
0.009
|
0.006
|
0.014
|
0.009
|
|
|
0.062-0.124
|
0.011
|
0.007
|
0.015
|
0.010
|
|
|
0.125-0.249
|
0.012
|
0.008
|
0.023
|
0.015
|
|
|
0.250-0.374
|
0.017
|
0.011
|
0.030
|
0.020
|
|
|
0.375-0.499
|
0.021
|
0.014
|
0.045
|
0.030
|
|
|
0.500-0.749
|
0.038
|
0.025
|
0.060
|
0.040
|
|
|
0.750-0.999
|
0.053
|
0.035
|
0.075
|
0.050
|
|
|
1.000-1.499
|
0.068
|
0.045
|
0.090
|
0.060
|
|
|
1.500-2.000
|
—
|
—
|
0.105
|
0.070
|
|
|
All Alloys
|
Eccentricity
  Difference between AA and mean wall thickness |
||
|
Under 0.047
|
0.005
|
Plus and
minus
10% of
mean
wall
thickness max ±0.060
min ±0.010
|
|
|
0.047-0.061
|
0.007
|
||
|
0.062-0.124
|
0.010
|
||
|
0.125-0.249
|
0.015
|
||
|
0.250-0.374
|
0.025
|
||
|
0.375-0.499
|
0.030
|
||
|
0.500-0.749
|
0.040
|
||
|
0.750-0.999
|
0.050
|
||
|
1.000-1.499
|
0.060
|
||
|
1.500-2.000
|
—
|
||
STANDARD TOLERANCES
EXTRUDED TUBE
Allowable deviation from specified length
Tolerance, Inches plus except as noted
|
Specified
outside diameter or width, Inches |
Specified length, Feet
|
|||||||
|
Straight
|
Coiled
|
|||||||
|
Up
thru 12 |
Over 12
thru 30 |
Over
30 thru 50 |
Over
50 |
Up
thru 100 |
Over
100 thru 250 |
Over
250 thru 500 |
Over
500 |
|
|
0.500-1.249
|
1/8
|
1/4
|
3/8
|
1
|
+5%,–0%
|
±10%
|
±15%
|
±20%
|
|
1.250-2.999
|
1/8
|
1/4
|
3/8
|
1
|
—
|
—
|
—
|
—
|
|
3.000-7.999
|
3/16
|
5/16
|
7/16
|
1
|
—
|
—
|
—
|
—
|
|
8.000 and over
|
1/4
|
3/8
|
1/2
|
1
|
—
|
—
|
—
|
—
|
STANDARD TOLERANCES
EXTRUDED TUBE
TWIST
Allowable deviation from straight
|
Temper
|
Specified
width Inches |
Specified
thickness Inches |
Tolerance, Degrees
 Y (max) in, Degrees |
|
|
In total
length or in any segment of one ft. or more of total length |
Maximum
for total length |
|||
|
All except 0,
|
0.500 thru 1.499
|
All
|
1 x measured
length, ft |
7
|
|
TX 510,
|
1.500-2.999
|
All
|
1/2 x measured
length, ft |
5
|
|
TX511
|
3.000 and over
|
All
|
1/4 x measured
length, ft |
3
|
|
TX510
|
0.500
|
0.095 and over
|
||
|
TX511
|
0.500-1.499
|
0.095 and over
|
1 x measured
length, ft |
7
|
|
1.500-2.999
|
1.500-2.999
|
0.095 and over
|
1/2 x measured
length, ft |
5
|
|
3.000 and over
|
0.095 and over
|
1/4 x measured
length, ft |
4
|
|
STANDARD TOLERANCES
EXTRUDED TUBE
STRAIGHTNESS
Allowable deviation (D) from straight
|
Temper
|
Specified
outside diameter or width Inches |
Tolerance, Inches
|
 In total length or in any segment of one ft. or more of total length |
|
All except 0
|
0.500-5.999
|
0.019 x measured
length, ft. |
|
|
TX510
|
6.000 and over
|
0.020 x measured
length, ft. |
|
|
TX510
|
0.500 and over
|
Tolerances for T3510, T4510, T6510, T73510, T76510 and T8510 tempers shall be as agreed upon between purchaser and vendor at the time the contract or order is entered.
|
FLATNESS
|
Minimum
thickness of metal forming the surface Inches |
Tolerance, Inches
|
 Maximum allowable deviation Y |
|
|
Widths up
thru 1 in. or any 1 in. increment of wider surfaces |
Widths
over 1 in. thru 5.999 in. |
||
|
Up thru 0.187
|
0.006
|
0.006 x W
Inches |
|
|
0.188 and over
|
0.004
|
0.004 x W
Inches |
|