API 5L ERW Steel Pipe
API 5L Pipe is a carbon steel pipe as per the specification of The American Petroleum Institute, This steel pipe is produced in a welded and seamless form.
The API 5L ERW Pipe is a low-cost piping option. This pipe has high working efficiency and are very durable and it is easy to weld. So the demand of API Line pipe is increasing. They are available in nominal sizes between 1/2″ to 26″.
API 5L steel pipe is more suitable for transportation of Oil and gas, water and also petroleum liquids, API 5L carbon steel pipe is also known as black steel pipe is widely used in oil drilling purpose. API 5L pipe is produced in two types PSL1 and PSL2, Most common grades of API 5L are API 5L GRB, X42, c46, x52, x56, x60, x65, x70 and x80, API 5L grade b is more economical and fast moving material.


Application of API 5L Seamless Tube Common Grades

API 5L Gr.B

API 5L X60/ X65

API 5L GR X42
API 5L X42 line pipe is most commonly used in the petroleum industry to transport oil and gas.
Onshore, for transporting oil and gas from wellheads to refineries, and offshore, for transporting oil and gas from platforms to onshore terminals.
API 5L X42 line pipe is also used in other industries such as chemical industry, for chemical transportation, construction industry, for pipeline construction.

API 5L GR X52
X52 and X42 have the same purpose, but the impact test of – 20 ° is added to X42.
So it is a higher strength steel grade than X42 and is typically used in higher-pressure applications.
At present, the demand for API 5L X52 steel pipes in African countries is increasing.
Example Size
NPS Designator | DN Designator | Outside Diameter | Wall Thickness | Weight Class | Schedule No. | Test Pressure, psi | |
mm | mm | Grade A | Grade B | ||||
1/2″ | 15 | 21.3 | 2.77 | STD | 40 | 4.8 | 4.8 |
3.73 | XS | 80 | 5.9 | 5.9 | |||
4.78 | – | 160 | 6.2 | 6.2 | |||
7.47 | XXS | – | 6.9 | 6.9 | |||
6″ | 150 | 168.3 | 4.78 | – | – | 7.0 | 8.2 |
5.56 | – | – | 8.2 | 9.6 | |||
6.35 | – | – | 9.4 | 10.9 | |||
7.11 | STD | 40 | 10.5 | 13.0 | |||
7.92 | – | – | 11.7 | 13.7 | |||
8.74 | – | – | 12.9 | 15.0 | |||
9.52 | – | – | 14.1 | 16.4 | |||
10.97 | XS | 80 | 16.2 | 18.9 |
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