API publications necessarily address problems of a general nature. With respect to VII. Introduction. This Standard is based on API Spec 5L, 44th Edition. Comparison Between API 5L 44th And 45th Edition – API API Has Provided A Summary Of The 45th Edition Improvements, As Per The Following Excerpt From . API 5L 44th – Ebook download as PDF File .pdf) or read book online.

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A section containing the defect is removed by cutting?

At present, the development trend of line pipe engineering is large diameter, high pressure gas transportation, high cold and corrosion service environment, thick wall of submarine pipeline etc. Manufacturer applies for Licensing under the Monogram Program 2.

References provided in Clause 7.

Described in Clause 9. Types of inspections required are based on the product form and the PSL level and include: Tempered and quenched Letter M: According to the stress and deformation characteristics of the specimen during the flattening process, the flattening test shall show the resistance to longitudinal cracking and circumferential cracking of the pipe, and display its internal defects and surface defects.

Qualifications of visual inspectors are identified?

Where can I get that summary of 45th edition improvement? The letter L followed by the specified minimum yield strength in Mpa.

License is granted once all requirements have been demonstrated L Street, NW?

Other than above three common tests there are other tests that required in each circumstances. With less raw material cost, simplified and uniform production procedures, welded steel pipe has taken the first place 44tth oil and gas line pipe industries.


Grade designations for PSL 2 contain a delivery condition, e. Except the previous situation, the pipe shall withstand the hydrostatic test without leakage through the weld seam or the pipe body. By different delivery condition, there are also As-rolled, normalizing rolled, thermomechanical rolled, normalizing formed, normalized, normalized and tempered, quenched and tempered.

The pipe is rejected L Street, NW? Individual annexes applicability of confirmation Additional information Following additional information also could be included in the PO in different situations.

So how much do you know about API 5L pipe eedition why it is getting so popular and important in pipeline industries? Thank you in advance. API 5L initially issued in the s? This standard is not applicable to cast pipe. As the steel line pipe grades higher, more strictly control on the carbon equivalent control, and higher mechanical strength performances.

Read wec-6/api-5lth-edition

For PSL2 pipe, Besides above terms, such documents shall provide means for tracing any length of the pipe to the proper test unit, including the related chemical and mechanical test results. Therefore, API 5L steel line pipe should have high strength, high toughness and brittle fracture, and good weld ability, and suitable for sour services and in H2S environment with anti-corrosion performances.

Plain or threaded pipe ends? Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.

Jointers need not eidtion hydrostatically level, provided that the portions of pipe used in making the jointers were successfully hydrostatically tested prior to the joining operation. The heat identity until all related chemical tests are performed and complied the required specifications.


The mainly difference between 45th Edition with previously is to add 2 additional appendix: T Elong in 2″ g. For example total meters or total pieces. Tighter requirements on chemical alloying elements for PSL 2? By hot rolled 44t process we could get seamless pipe diameters at most 20 inch mm. The best requirements of both standards were adopted? What information that will be required for purchasing API 5L pipe a. Requires that records be retained for a minimum of 3 years Spec Q1 requires a 5 year minimum retention?

As rolled Letter N: Magnetic particle inspection Clause E. Strength levels in US Customary units are converted from metric equivalents and are not rounded to the nearest thousand — Conversion results in a slightly different value than in the past?

API 5L Steel Pipe Specification (Latest 45th Edition Update)

Thank you for helping keep Eng-Tips Forums free from inappropriate posts. Thermomechanical rolled or thermomechanical formed. It is editiin technology and high value-added product. Specification permits intermediate grades L Street, NW? Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors.

Join your peers on the Internet’s largest technical engineering professional community. Random length shall be delivered as below table Acceptance criteria given in Clauses E. Promoting, selling, recruiting, coursework and thesis posting is forbidden.

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