Sizes and OD / ID tolerances of cold drawn seamless mechanical tubes according to ASTM A519


Outside
Wall thickness [mm]
diameter
0,89
1,24
1,47
1,65
1,83
2,11
2,41
2,77
3,05
3,18
3,40
3,96
4,19
4,78
5,16
5,56
6,35
7,14
7,95
8,26
8,74
9,53
11,13
11,91
12,7
D [mm]
[mm]
Tolerances [mm]
9,53

±0,10

±0,12

±0,15
9,53
11,13
11,13
12,7
±0,20
12,7
14,3
±0,15
±0,25
14,3
15,88
±0,15
15,88
17,48
±0,15
17,48
19,05
±0,15
±0,20
19,05
20,65

-0,178/+0,051
±0,20
20,65
22,23
±0,15
22,23
23,83
23,83
25,4
25,4
27
27
28,58
28,58

-0,178/+0,051
30,18
30,18
31,75

±0,15
31,75
33,35
33,35
34,93
34,93
36,53
36,53
38,1
38,1
41,28
±0,20
±0,25
41,28
44,45
44,45
47,63
-0,152/+0,127
±0,20
47,63
50,8
±0,20
50,8
53,98
53,98
57,15
±0,20
-0,203/+0,127
57,15
60,33
60,33
63,5
±0,25
±0,20
±0,20
63,5
66,68
±0,45
±0,30
±0,20

-0,152/+0,127
66,68
69,85
ODxWT
±0,25
69,85
73,03
±0,30
±0,20
73,03
76,2
±0,25
76,2
79,38
±0,40
±0,30
-0,279/+0,127
79,38
82,55
±0,45
82,55
85,73
±0,40
85,73
88,9
±0,50
-0,330/+0,127
88,9
92,08
±0,30
92,08
95,25
95,25
98,43
±0,30
-0,254/+0,254
98,43
101,6
±0,35
101,6
104,78
±0,40
104,78
107,95
-0,279/+0,279
107,95
111,13
±0,45
±0,40
111,13
114,3
±0,50
±0,35

-0,279/+0,279
114,3
120,65
120,65
Tolerances [mm]
0,89
1,24
1,47
1,65
1,83
2,11
2,41
2,77
3,05
3,18
3,40
3,96
4,19
4,78
5,16
5,56
6,35
7,14
7,95
8,26
8,74
9,53
11,13
11,91
12,7
Wall thickness [mm]

Notes
1. By agreement also the dimensions according to BWG and SWG.
2. OD / ID tolerances are for normalized tubes.



Wall thickness tolerances
ID < 1,5 in
ID < 38,1 mm
ID ≥ 1,5 in
ID ≥ 38,1 mm
WT≤ 25% OD
10%
7,5%
WT> 25% OD
12,5%
10%
WT - Wall thickness
ID - Inside diameter
OD - Outside diameter



Length tolerances
Lenght - L
Outside diameter - OD
Tolerances
positive
negative
L ≤4 ft
L ≤ 1,2 m
OD ≤ 2 in
OD ≤ 50,8 mm
1/16
1,6 mm
0
0
L ≤4 ft
L ≤ 1,2 m
2 in < OD ≤ 4 in
50,8 mm < OD ≤ 101,6 mm
3/32
2,4 mm
0
0
L ≤4 ft
L ≤ 1,2 m
OD > 4 in
OD > 101,6 mm
1/8
3,2 mm
0
0
4 ft < L ≤ 10 ft
1,2 m < L ≤ 3,0 m
OD ≤ 2 in
OD ≤ 50,8 mm
3/32
2,4 mm
0
0
4 ft < L ≤ 10 ft
1,2 m < L ≤ 3,0 m
OD > 2 in
OD ≤ 50,8 mm
1/8
3,2 mm
0
0
10 ft < L ≤ 24 ft
3 m < L ≤ 7,3 m
all sizes
all sizes
3/16
4,8 mm
0
0
L > 24 ft
L > 7,3 m
all sizes
all sizes
from 3/16 to 1/2*
from 4,8 to 12,7 mm*
0
0
*for each 10 ft. (3.0 m) or fraction over 24 ft. (7.3 m)