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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For your info, there are also big diameters seamless pipe. Red Flag This Post Please let us know here why this post is inappropriate.

Resources Digital Transformation may be defined in a editoin of different ways by analysts or enterprise software vendors. Jointers need not be hydrostatically level, provided that the portions of pipe used in making the jointers were successfully hydrostatically tested prior to the joining operation. By hot rolled manufacturing process we could get seamless pipe diameters at most 20 inch mm.

This version was started from Aprilwith collecting and analyzing of more than suggestions, finally released at the end of Flattening test The flattening test method is used to verify the deformation performance of line pipe to the specified size, and display its defects.

Requirements include minimum and maximum strengths?

API 5L Pipe Complete Specification Based 45th Latest Edition

Yield strength ranges from: References provided in Clause 7. Acceptance criteria given in Clauses E. API 5L steel line pipe adopts different steel grades, generally are Gr. Test unit identity until all related mechanical tests are performed and complied with the related specifications.


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. Traceability is important For PSL1 pipe, manufacturer shall establish and follow documented procedures to maintain a.

By different delivery condition, there are also As-rolled, normalizing rolled, thermomechanical rolled, normalizing formed, normalized, 44gh and tempered, quenched and tempered.

Clause s stat criteria unit stat criteria units Dimensions Weight Length Mill Jointers Defects Plain Ends 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Body OD from nom. 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.

A section containing the defect is removed by cutting?

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

Purchase order must indicate which provisions of Clause 7. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. OD Outside diameter 44yh WT pipe wall thickness g: For intermediate grades, API 5L pipe grade shall be in one of following description format: Bend test Cracks should not occur in any part of the sample and opening of weld shall not occur as well.

The flattening test method is used to verify the deformation performance of line pipe to the specified size, and display its defects. Suitable for welding L Street, NW?

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. Manufacturer is audited initially and then once every 3 years thereafter to the requirements of Spec Q1 and Spec 5L 4.


PSL is the abbreviation of eidtion specification level. The steel line pipe production has almost applied to all new technology achievement in aapi field nearly 20 years.

Join your peers on the Internet’s largest technical engineering professional community. Different manufacturing type API 5L specification covers the manufacturing types in welded and seamless.


Minimum strength requirement on weld seams? Requires that records be retained for a minimum of 3 years Spec Q1 requires a 5 year minimum retention? Notations in the margins of the standard showing where requirements in Annex N either supplement or replace those in the body L Street, NW? More over, for the same grade API 5L pipe, seamless and welded chemical elements content is different, which welded pipe is required more strictly and lower on Carbon and Sulfur.

Purchase order must first include general information, Clause 7. Random length shall be delivered as below table Following additional information also could be included in the PO in different situations. API 5L 44th ed. Described in Clause 9. API 5L is the implementation standard of steel pipe for pipeline transportation system and specification for line pipe.