API Line Pipe is a pipeline product conforming to the American Petroleum Institute (API) standards.
It is used to transport oil, gas, and water extracted from the ground to petroleum and natural gas industrial facilities.
API line pipe includes seamless pipe and welded steel pipe, available with plain ends, threaded ends, or bell-and-spigot ends.
Common connection methods include end welding, coupling joints, and socket connections.
Chemical Composition Of Api 5l Line Pipe
API 5L PSL-1 Chemical Component
|
Steel Grade |
Mass fraction, based on melting and product analysis % |
|||||||
|
C |
Mn |
P |
S |
V |
Nb |
Ti |
||
|
max. |
max. |
min. |
max. |
max. |
max. |
max. |
max. |
|
|
L175 or A25 |
0.21 |
0.60 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L175P or A25P |
0.21 |
0.60 |
0.045 |
0.080 |
0.030 |
– |
– |
– |
|
L210 or GR. A |
0.22 |
0.90 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L245 or GR. B |
0.26 |
1.20 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L290 or X42 |
0.26 |
1.30 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L320 or X46 |
0.26 |
1.40 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L360 or X52 |
0.26 |
1.40 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L390 or X56 |
0.26 |
1.40 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L415 or X60 |
0.26 |
1.40 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L450 or X65 |
0.26 |
1.45 |
– |
0.030 |
0.030 |
– |
– |
– |
|
L485 or X70 |
0.26 |
1.65 |
– |
0.030 |
0.030 |
– |
– |
– |
API 5L PSL-2 Chemical Component
|
Steel Grade |
Mass fraction, based on melting and product analysis % |
CEC(%) max |
|||||||||
|
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
Other |
CEIIW |
CEPcm |
|
|
L245M or BM |
0.22 |
0.45 |
1.20 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
– |
0.43 |
0.25 |
|
L290M or X42M |
0.22 |
0.45 |
1.30 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
– |
0.43 |
0.25 |
|
L320M or X46M |
0.22 |
0.45 |
1.30 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
– |
0.43 |
0.25 |
|
L360M or X52M |
0.22 |
0.45 |
1.40 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L390M or X56M |
0.22 |
0.45 |
1.40 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L415M or X60M |
0.12 |
0.45 |
1.60 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L450M or X65M |
0.12 |
0.45 |
1.60 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L485M or X70M |
0.12 |
0.45 |
1.70 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L555M or X80M |
0.12 |
0.45 |
1.85 |
0.025 |
0.015 |
– |
– |
– |
– |
0.43 |
0.25 |
|
L625M or X90M |
0.10 |
0.55 |
2.10 |
0.020 |
0.010 |
– |
– |
– |
– |
– |
0.25 |
|
L690M or X100M |
0.10 |
0.55 |
2.10 |
0.020 |
0.010 |
– |
– |
– |
– |
– |
0.25 |
|
L830M or X120M |
0.10 |
0.55 |
2.10 |
0.020 |
0.010 |
– |
– |
– |
– |
– |
0.25 |
