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Seamless steel tubes suitable for welding or threading ASTM A 53 Grade B

Basic parameters

Product | Product application |
Standard
Dimensional standard
  • | Pipe steel, black and hot-dipped, zinc-coated, welded seamless.
TDC
  • | General requirements for specialized carbon and alloy steel pipe.
Steel grade
Surface coating
Dimensions
Dimensional table

API Spec 5L; EN ISO 3183;
A/SA-53; A/SA-106 in connection with A/SA 530
A/SA-335 (A/SA-333) in connection with A/SA999

Delivered as cold drawn
Hot rolled pipes
Delivered upon agreement
NPS
Outside diameter
Wall thickness
Schedule
Weight
DN
Weight
API
A/SA-53
[inch]
[mm]
[inch]
[mm]
No
class
[lbs/ft]
[kg/m]
Spec 5L
1/8
0.405
10,29
0.049
1,24
10
...
6
0.19
0,28
-
1/8
0.405
10,29
0.057
1,45
30
...
6
0.21
0,32
-
1/8
0.405
10,29
0.068
1,73
40
STD
6
0.24
0,37
API
√
1/8
0.405
10,29
0.095
2,41
80
XS
6
0.31
0,47
-
√
1/4
0.540
13,72
0.065
1,65
10
...
8
0.33
0,49
-
1/4
0.540
13,72
0.073
1,85
30
...
8
0.36
0,54
API
1/4
0.540
13,72
0.088
2,24
40
STD
8
0.42
0,63
API
√
1/4
0.540
13,72
0.119
3,02
80
XS
8
0.54
0,80
-
√
3/8
0.675
17,14
0.065
1,65
10
...
10
0.42
0,63
-
3/8
0.675
17,14
0.073
1,85
30
...
10
0.47
0,70
-
3/8
0.675
17,14
0.091
2,31
40
STD
10
0.57
0,84
API
√
3/8
0.675
17,14
0.126
3,20
80
XS
10
0.74
1,10
-
√
1/2
0.840
21,34
0.065
1,65
5
...
15
0.54
0,80
-
1/2
0.840
21,34
0.083
2,11
10
...
15
0.67
1,00
-
1/2
0.840
21,34
0.095
2,41
30
...
15
0.76
1,12
API
1/2
0.840
21,34
0.109
2,77
40
STD
15
0.85
1,27
API
√
1/2
0.840
21,34
0.147
3,73
80
XS
15
1.09
1,62
-
√
1/2
0.840
21,34
0.188
4,78
160
...
15
1.31
1,95
-
√
3/4
1.050
26,67
0.065
1,65
5
...
20
0.69
1,03
-
3/4
1.050
26,67
0.083
2,11
10
...
20
0.86
1,28
API
3/4
1.050
26,67
0.095
2,41
30
...
20
0.97
1,44
API
3/4
1.050
26,67
0.113
2,87
40
STD
20
1.13
1,69
API
√
3/4
1.050
26,67
0.154
3,91
80
XS
20
1.47
2,20
API
√
3/4
1.050
26,67
0.219
5,56
160
...
20
1.94
2,90
API
√
1
1.315
33,40
0.065
1,65
5
...
25
0.87
1,29
-
1
1.315
33,40
0.109
2,77
10
...
25
1.41
2,09
API
1
1.315
33,40
0.114
2,90
30
...
25
1.46
2,18
API
1
1.315
33,40
0.133
3,38
40
STD
25
1.68
2,50
API
√
1
1.315
33,40
0.179
4,55
80
XS
25
2.17
3,24
API
√
1
1.315
33,40
0.250
6,35
160
...
25
2.84
4,29
API
√
1 1/4
1.660
42,16
0.065
1,65
5
...
32
1.11
1,65
-
1 1/4
1.660
42,16
0.109
2,77
10
...
32
1.81
2,69
API
1 1/4
1.660
42,16
0.117
2,97
30
...
32
1.93
2,87
API
1 1/4
1.660
42,16
0.140
3,56
40
STD
32
2.27
3,39
API
√
1 1/4
1.660
42,16
0.191
4,85
80
XS
32
3.00
4,47
API
√
1 1/4
1.660
42,16
0.250
6,35
160
...
32
3.76
5,61
API
√
1 1/2
1.900
48,26
0.065
1,65
5
...
40
1.28
1,90
-
1 1/2
1.900
48,26
0.109
2,77
10
...
40
2.09
3,11
API
1 1/2
1.900
48,26
0.125
3,18
30
...
40
2.37
3,53
API
1 1/2
1.900
48,26
0.145
3,68
40
STD
40
2.72
4,05
API
√
1 1/2
1.900
48,26
0.200
5,08
80
XS
40
3.63
5,41
API
√
1 1/2
1.900
48,26
0.281
7,14
160
...
40
4.86
7,25
API
√
1 1/2
1.900
48,26
0.400
10,16
...
XXS
40
6.41
9,55
-
2
2.375
60,32
0.065
1,65
5
...
50
1.61
2,39
-
2
2.375
60,32
0.083
2,11
...
...
50
2.03
3,03
API
2
2.375
60,32
0.109
2,77
...
...
50
2.64
3,93
API
2
2.375
60,32
0.125
3,18
...
...
50
3.00
4,48
API
2
2.375
60,32
0.141
3,58
...
...
50
3.36
5,01
API
2
2.375
60,32
0.154
3,91
40
STD
50
3.65
5,44
API
√
2
2.375
60,32
0.172
4,37
...
...
50
4.05
6,03
API
2
2.375
60,32
0.188
4,78
...
...
50
4.39
6,54
API
2
2.375
60,32
0.218
5,54
80
XS
50
5.02
7,48
API
√
2
2.375
60,32
0.250
6,35
...
...
50
5.67
8,45
API
2
2.375
60,32
0.281
7,14
...
...
50
6.28
9,36
API
2
2.375
60,32
0.344
8,74
160
...
50
7.46
11,11
API
√
2
2.375
60,32
0.436
11,07
...
XXS
50
9.04
13,44
API
√
2 1/2
2.875
73,02
0.038
2,11
5
...
65
2.47
3,69
API-light
2 1/2
2.875
73,02
0.109
2,77
...
...
65
3.22
4,80
API-light
2 1/2
2.875
73,02
0.120
3,05
10
...
65
3,53
5,26
API-light
2 1/2
2.875
73,02
0.125
3,18
...
...
65
3.67
5,48
API-light
2 1/2
2.875
73,02
0.141
3,58
...
...
65
4.12
6,13
API-light
2 1/2
2.875
73,02
0.156
3,96
...
...
65
4.53
6,74
API
2 1/2
2.875
73,02
0.172
4,37
...
...
65
4.97
7,40
API
2 1/2
2.875
73,02
0.188
4,78
...
...
65
5.40
8,04
API
2 1/2
2.875
73,02
0.203
5,16
40
STD
65
5.79
8,63
API
√
2 1/2
2.875
73,02
0.216
5,49
...
...
65
6.13
9,14
API
2 1/2
2.875
73,02
0.250
6,35
...
...
65
7.01
10,44
API
2 1/2
2.875
73,02
0.276
7,01
80
XS
65
7.66
11,41
API
√
2 1/2
2.875
73,02
0.375
9,53
160
...
65
10.01
14,92
API
√
2 1/2
2.875
73,02
0.552
14,02
...
XXS
65
13.71
20,39
API
√
3
3.500
88,90
0.083
2,11
...
...
80
3.03
4,52
API-light
3
3.500
88,90
0.109
2,77
...
...
80
3.95
5,88
API-light
3
3.500
88,90
0.120
3,05
10
...
80
4,34
6,46
API-light
3
3.500
88,90
0.125
3,18
...
...
80
4.51
6,72
API-light
√
3
3.500
88,90
0.141
3,58
...
...
80
5.06
7,53
API-light
3
3.500
88,90
0.156
3,96
...
...
80
5.57
8,29
API
√
3
3.500
88,90
0.172
4,37
...
...
80
6.11
9,11
API
3
3.500
88,90
0.188
4,78
...
...
80
6.65
9,92
API
√
3
3.500
88,90
0.216
5,49
40
STD
80
7.58
11,29
API
√
3
3.500
88,90
0.250
6,35
...
...
80
8.68
12,93
API
√
3
3.500
88,90
0.281
7,14
...
...
80
9.66
14,40
API
√
3
3.500
88,90
0.300
7,62
80
XS
80
10.25
15,27
API
√
3
3.500
88,90
0.438
11,13
160
...
80
14.32
21,35
API
√
3
3.500
88,90
0.600
15,24

...

XXS
80
18.60
27,68
API
√
3 1/2
4.000
101,60
0.083
2,11
5
...
90
3.48
5,18
API-light
3 1/2
4.000
101,60
0.109
2,77
...
...
90
4.53
6,75
API-light
3 1/2
4.000
101,60
0.120
3,05
10
...
90
4.98
7,41
API-light
3 1/2
4.000
101,60
0.125
3,18
...
...
90
5.17
7,72
API-light
√
3 1/2
4.000
101,60
0.141
3,58
...
...
90
5.81
8,65
API-light
3 1/2
4.000
101,60
0.156
3,96
...
...
90
6.40
9,53
API-light
√
3 1/2
4.000
101,60
0.172
4,37
...
...
90
7.03
10,48
API
3 1/2
4.000
101,60
0.188
4,78
30
...
90
7.65
11,41
API
√
3 1/2
4.000
101,60
0.226
5,74
40
STD
90
9.11
13,57
API
√
3 1/2
4.000
101,60
0.250
6,35
...
...
90
10.01
14,92
API
√
3 1/2
4.000
101,60
0.281
7,14
...
...
90
11.16
16,63
API
√
3 1/2
4.000
101,60
0.318
8,08
80
XS
90
12.50
18,63
API
√
4
4.500
114,30
0.083
2,11
5
...
100
3.92
5,84
API-light
4
4.500
114,30
0.109
2,77
...
...
100
5.11
7,62
API-light
4
4.500
114,30
0.120
3,05
10
...
100
5.62
8,37
API-light
4
4.500
114,30
0.125
3,18
...
...
100
5.84
8,71
API-light
√
4
4.500
114,30
0.141
3,58
...
...
100
6.56
9,77
API-light
4
4.500
114,30
0.156
3,96
...
...
100
7.24
10,78
API-light
√
4
4.500
114,30
0.172
4,37
...
...
100
7.95
11,85
API
4
4.500
114,30
0.188
4,78
...
...
100
8.66
12,91
API
√
4
4.500
114,30
0.203
5,16
...
...
100
9.32
13,89
API
4
4.500
114,30
0.219
5,56
...
...
100
10.01
14,91
API
√
4
4.500
114,30
0.237
6,02
40
STD
100
10.79
16,07
API
√
4
4.500
114,30
0.250
6,35
...
...
100
11.35
16,90
API
√
4
4.500
114,30
0.281
7,14
...
...
100
12.66
18,87
API
√
4
4.500
114,30
0.312
7,92
...
...
100
13.96
20,78
API
√
4
4.500
114,30
0.337
8,56
80
XS
100
14.98
22,32
API
√
4
4.500
114,30
0.438
11,13
120
...
100
19.00
28,32
API
√
4
4.500
114,30
0.531
13,49
160
...
100
22.51
33,54
API
√

Tolerances according to ASTM A530/A530M, ASTM A999/A999M (ASME SA)
Weight
Outside diameter
Wall thickness
All standards:
NPS 12 and under
- 3,5% +10%
over NPS 12
-5% +10%

Upon agreement
(ASTM A999:
with minimum wall thickness,
 max +16%)
 1/8 - 1 1/2" (10,29 - 48,26 mm): - 1/32 (0.031) + 1/64 (0.015)
All standards:
- 12,5%
+ limited by weight*

Upon agreement
(ASTM A999:
Minimum wall thickness:
There shall be no variation under the specified WT)
- 0,8 + 0,4 mm**
1 1/2 - 4" (48,26 - 114,30 mm): - 1/32 (0.031) + 1/32 (0.031)
- 0,8 + 0,8 mm
more than 4 - 8 (114,30 - 219,08):- 1/32 (0.031) + 1/16 (0.062)
- 0,8 + 1,6 mm

1)*According ASTM A 530 is plus tolerance of WT (latest edition):
NPS 1/8 –2 1/2“, all t/D ratios +20%
NPS 3 –18“, up to t/D 5 % +22,5 %
NPS 3 –18, t/D over 5 % +15 %
2) Ovality for thin-wall pipes (WT≤3% OD) under 1,5% of specified OD
3) ** ASTM A335 dimension range1/8 - 1 1/2 tolerances - 1/64 (0,4 mm)

Notes

  1. Table for precision tubes
  2. European standards tube dimensions
  3. API standards
  4. Pipes for threading
  5. Japanese standard JIS

Chemical composition

C Si Mn P S Cr Ni
min 0 1.2 0 0 0.4 0.4
max 0.3 1.2 0.05 0.045 0.4 0.4
Mo Cu Al V Ti Nb Sn
min 0.15 0.08
max 0.15 0.08

Mechanical properties

Re (MPa) Re (ksi) Rm (MPa) Rm (ksi) A (%)
min 240 415 60 0
max - - 0 - -

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