Seamless steel tubes – line pipe API API 5L Grade A

Basic parameters

Product | Product application |
Standard
Dimensional standard
  • | Specification for line pipe.
TDC
Steel grade
Surface coating
Dimensions
Dimensional table

Permissible specified outside diameter and specified wall thickness according to API Spec 5L

Specified outside diameter
Speciafied wall thickness
OD [mm (in)]
Special light sizes
Regular sizes
WT [mm (in)]
WT [mm (in)]
>= 10.3 (0,405) do 13,7 (0,540)
>= 1,7 (0,068) do 2,4 (0,094)
> 13,7 (0,540) do 17,1 (0,675)
>= 2,2 (0,088) do 3,0 (0,116)
> 17,1 (0,675) do 21,3 (0,840)
>= 2,3 (0,091) do 3,2 (0,125)
> 21,3 (0,840) do 26,7 (1,050)
>= 2,1 (0,083) do 7,5 (0,294)
> 26,7 (1,050) do 33,4 (1,315)
>= 2,1 (0,083) do 7,8 (0,308)
> 33,4 (1,315) do 48,3 (1,900)
>= 2,1 (0,083) do 10,0 (0,394)
> 48,3 (1,900) do 60,3 (2,375)
>= 2,1 (0,083) do 12,5 (0,492)
> 60,3 (2,375) do 73,0 (2,875)
>= 2,1 (0,083) do 3,6 (0,141)
> 3,6 (0,141) do 14,2 (0,559)
> 73.0 (2,875) do 88,9 (3,500)
>= 2,1 (0,083) do 3,6 (0,141))
> 3,6 (0,141) do 20,0 (0,787)
> 88,9 (3,500) do 101,6 (4,000)
>= 2,1 (0,083) do 4,0 (0,156)
> 4,0 (0,156) do 22,0 (0,866)
> 101,6 (4,000) do 168,3 (6,625)
>= 2,1 (0,083) do 4,0 (0,156)
> 4,0 (0,156) do 25,0 (0,984)

Dimensions of line pipes in accordance with the former API Spec 5L standards

Key:
cold drawn
hot rolled
Hmotnostná
Hrúbka
Weight
NSD
Outside
Weight
Wall
Weight
diameter - OD
 
thicknessen
(SD)
[inch]
[mm]
[inch]
[mm]
[lbs/ft]
[kg/m]
0.405
(1/8)
0.405
10,3
STD
0.068
1,7
0.24
0,36
XS
0.095
2,4
0.31
0,47
0.540
(1/4)
0.540
13,7
STD
0.088
2,2
0.42
0,62
XS
0.119
3,0
0.54
0,79
0,675
(3/8)
0.675
17,1
STD
0.091
2,3
0.57
0,84
XS
0.126
3,2
0.74
0,10
0.840
(1/2)
0.840
21,3
STD
0.109
2,77
0.85
1,28
XS
0.147
3,73
1.09
1,61
1.050
(3/4)
1.050
26,7
STD
0.113
2,87
1.13
1,70
XS
0.154
3,91
1.47
2,19
1.315
(1)
1.315
33,4
STD
0.133
3,38
1.68
2,52
XS
0.179
4,55
2.17
3,21
1.660
(1 1/4)
1.660
42,2
STD
0.140
3,56
2.27
3,43
XS
0.191
4,85
3.00
4,51
1.990
(1 1/2)
1.900
48,3
STD
0.145
3,68
2.72
4,07
XS
0.200
5,08
3.63
5,43
2 3/8
(2)
2.375
60,3
STD
0.154
3,91
3.65
5,42
...
0.172
4,37
4.05
6,07
...
0.188
4,78
4.39
6,57
XS
0.218
5,54
5.02
7,43
...
0.250
6,35
5.67
8,51
...
0.281
7,14
6.28
9,31
2 7/8
(2 1/2)
2.875
73,0
...
0.156
3,96
4.53
6,81
...
0.172
4,37
4.97
7,44
...
0.188
4,78
5.40
8,07
STD
0.203
5,16
5.79
8,69
...
0.216
5,49
6.13
9,16
...
0.250
6,35
7.01
10,51
XS
0.276
7,01
7.66
11,39
3 1/2
(3)
3.500
88,9
...
0.125
3,18
4.51
6,76
...
0.141
3,58
5.06
7,57
...
0.156
3,96
5.57
8,37
...
0.172
4,37
6.11
9,17
...
0.188
4,78
6.65
9,95
STD
0.216
5,49
7.58
11,31
...
0.250
6,35
8.68
13,02
...
0.281
7,14
9.66
14,32
XS
0.300
7,62
10.25
15,24
4
(3 1/2)
4.000
101,6
...
0.156
3,96
6.40
9,63
...
0.172
4,37
7.03
10,55
...
0.188
4,78
7.65
11,46
STD
0.226
5,74
9.11
13,48
...
0.250
6,35
10.01
15,02
...
0.281
7,14
11.16
16,55
XS
0.318
8,08
12.50
18,68
4 1/2
(4)
4.500
114,3
...
0.156
3,96
7.24
10,88
...
0.172
4,37
7.95
11,92
...
0.188
4,78
8.66
12,96
...
0.203
5,16
9.32
13,99
...
0.219
5,56
10.01
15,01
STD
0.237
6,02
10.79
16,02
...
0.250
6,35
11.35
17,03
...
0.281
7,14
12.66
18,77
...
0.312
7,92
13.96
20,73
XS
0.337
8,56
14.98
22,42
...
0.438
11,13
19.00
28,25
...
0.531
13,49
22.51
33,56

NSD – Nominal Size Designation

Notes:

  • Dimensions 1/8, 1/4 and 3/8 are delivered as cold drawn.
  • The table is valid for tubes for threading and plain end tubes.
  • Values (SD) in brackets were valid until 1995.
  • Since 2000 in the range 10.3 – 48.3 mm Nominal Size Designation and outside diameter OD are equal.
  • From 60,3 mm numbers without brackets are valid for Nominal Size Designations and ODs. (under the line)
  • Pipe with WT of STD and XS are also designed for threading.

Chemical composition

C Si Mn P S Cr Ni
min 0 0 0 0
max 0.22 0.9 0.03 0.03
Mo Cu Al V Ti Nb Sn
min
max

Mechanical properties

Re (MPa) Re (ksi) Rm (MPa) Rm (ksi) A (%)
min 207 331 48 0
max - - 0 - -

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