API 5L L290 Pipe is manufactured in accordance with the specifications defined by the American Petroleum Institute under API 5L standards. These carbon steel pipes are designed to meet strict industry requirements for pipeline transportation systems. They are available with different end connections such as plain ends, threaded ends, and upset or non-upset ends depending on the application requirements. Before delivery, the pipes undergo mandatory quality tests including hydrostatic testing, eddy current testing, and other non-destructive examinations. API 5L L290 Pipes are supplied in single random lengths (approximately 4–7 meters) and double random lengths (approximately 7–13 meters) with finishes such as black or galvanized coating.

These pipes are supplied with proper material test certificates to ensure compliance with international standards. The certification for the material generally conforms to EN 10204 Type 3.1 or 3.2 and may be verified by third-party inspection agencies such as TUV, DNV, SGS, EIL, or Lloyd’s depending on project specifications.

Color identification and material certification:
The internal or external surface of the API 5L L290 Pipe may be marked or color coded for identification of the grade and specification. The material certification should comply with the requirements of EN 10204 Type 3.1 / 3.2. Threading, if applicable, must conform to relevant API standards. Additional supplementary testing such as Impact Testing, NACE compliance, HIC testing, IBR certification, and other inspection requirements may be carried out as specified by project standards. The dimensional tolerances, including wall thickness and internal diameter, are maintained in accordance with API 5L manufacturing requirements to ensure reliable performance in pipeline applications.